- Problems
Problems
This section contains paper 2 style problem questions designed to give students practice in solving problems with more than one step. I am in the process of writing one or two problems for each sub topic so that students can be given a problem to try after each lesson. The questions wil be in HTML and pdf forms so students can either be given a link to the webpage via "student pages" or the pdf can be sent via email, printed out or posted on school intranet. I will also- Units and Measurement
Units and Measurement
1. The paddling pool in the photo is 8ft diameter and 1.5 ft deep. If it was filled with oil instead of water would its mass be more or less? Calculate the difference in mass if filled with water and oil. density of oil = 80kgm-3 density of water = 100 kgm-3 2. 63g of Copper contains 6 x 1023 atoms. What is the approximate size of an atom? Density of copper = 9 gcm-3 3. Calculate the length of a 30kg reel of 5mm thick copper wire. - Vectors and scalars
Vectors and scalars
1. A student holds an A4 size piece of paper parallel to the ground at a height of 1.5m. An Ant walks in an anticlockwise (haha) direction around the edge of the paper starting in the top right hand corner at a speed of 20cms-1. As the ant is walking the paper is dropped and it falls to the ground, as it falls it moves forwards 50cm. If the time taken to fall to the ground is 1.5s; calculate the magnitude of the Ants displacement. 2. An airplane takes off - Velocity and speed
Velocity and speed
1. A car travels from A to B as shown on the map below. The distance from A –B is 50km and the car starts off at an average speed of 50kmhr-1 hoping to make the journey in 1 hour. After 20km the car has to stop at some road works for 10 minutes, calculate the average speed be for the rest of the journey so that the car arrives on time? 2. Two identical boats that can travel 5ms-1 in still water have a race in a river that - acceleration and suvat
acceleration and suvat
1. A ball is thrown vertically up from the edge of a 100m high cliff with a velocity of 5ms-1. Calculate the time taken for it to hit the bottom of the cliff. 2. A ball is rolled up an inclined plane at a velocity of 2ms-1. If the angle of the plane to the horizontal is 10°calculate a. The component of acceleration down the slope b. The time taken for the ball to return to it’s original position. - Graphs of motion
Graphs of motion
1. A ball is released from A and rolls along the track shown to B and back to A again. Draw displacement time, velocity time and acceleration time graphs for the horizontal component of the motion taking the starting point to be the zero of displacement. 2. The graph below shows the results of an experiment where the time of an object was measured at different distances. The lines drawn are the best fit, the steepest and the least steep lines. (the object starts from rest) a. Use the graph - Forces
Forces
1. A 20kg boy holds a number of helium balloons each with volume 5000cm3 and mass 3g. How many balloons can the boy hold before he starts to be lifted off his feet? 2. Slack lining is doing tricks while standing on a rope stretched between two trees as shown in the photo. A 60kg person standing in the middle of a 5m rope causes it to go down 50cm. Calculate the tension in the rope. - Newton's 1st
Newton's 1st
1. A submerged ball of negligible mass is attached to the bottom of a swimming pool by two strings as shown. The volume of the ball is 5000cm3. Calculate the tension in each string. 2. The friction between two surfaces is given by F=µN where µ is the coefficient of friction and N is the Normal force. Calculate the friction force between the box and ground in the diagram if µ= 0.5 - Newton's 2nd
Newton's 2nd
1. A thin string is attached to a 5kg mass which is placed on a 1m high table. The string is so thin that it will break with a force of 40N so cannot be used to lift the mass. However if the mass is allowed to accelerate downwards the string can be used to lower the mass to the ground without breaking. Calculate the minimum speed that the mass will reach the ground if lowered in this way. 2. Two masses hang from a pulley as shown. Calculate the - Newton's 3rd
Newton's 3rd
1. A soldier fires 10 bullets per second from a machine gun. Each bullet has a mass of 50g and travels at 100ms-1. Calculate the force exerted by the soldier on the gun. 2. A 200g rubber ball hits the ground at a speed of 30ms-1. As it hits the ground it squashes and then bounces back up at 25ms-1. If the time in contact with the ground is 0.01s calculate the force exerted by the ball on the ground. 3. To run up a wall a “free-runner” must run - Momentum
Momentum
1. To load sand into a truck it is driven under a sand dispenser at a steady speed of 0.5ms-1. The sand is added at a rate of 100kgs-1. a) If the truck is 5m long calculate how much sand will be loaded. b) Calculate the force that must be pushing the truck to keep its velocity constant. 2. In an attempt to get back to his spaceship, a stranded spaceman throws his boots away one after the other at 10ms-1. If the mass of spaceman plus boots is - Work and Energy
Work and Energy
1. A ball of mass 0.16kg is thrown upwards with an initial velocity of 25ms-1 and reaches a maximum height of 20m. Calculate the percentage loss of energy due to air resistance. 2. A body of mass 5kg is projected up a board inclined at an angle of 30°to the horizontal with an initial velocity of 6ms-1. Assuming that the frictional force is a constant 4.5N calculate a) the distance travelled before coming to rest b) the increase in PE at the top of the slope c) whether the body - Power
Power
1. A 1000kg car with an 80kW engine travels at a constant speed of 20ms-1. Calculate the instantaneous acceleration of the car if the driver suddenly took her foot off the accelerator pedal. 2. Calculate the power of a 1000kg car driving up a 1in4 hill at a speed of 10ms-1 if the air resistance acting against the car is 1000N. - Circular motion
Circular motion
1. The bob of a 50cm long pendulum is made to move in a horizontal circle of radius 10cm. Calculate the angular velocity of the bob. 2. Calculate the angular velocity of the small ball rolling around the conical bowl shown below. - Temp and Heat
Temp and Heat
1. A 2kg block of wood slides down a 45°slope of length 2m. If the coefficient of friction between the slope and block is 0.4 calculate how much thermal energy will be transferred to the slope/block? 2. The resistance of a length of wire is 100Ω at 0°C and 120Ω at 100°C. If the resistance of the wire is linearly related to the temperature determine the temperature when the resistance is 112Ω. - Moles
Moles
1. Estimate the number of air molecules in the room drawn below. Density of air =1.3kgm-3 Molar mass air = 29g 2. When 1 molecule of methane gas burns approximately 1.4 x 10-18 J of energy are released. If the molar mass of methane is 16g what mass of methane would be required to do 1J of work? - Specific heat capacity
Specific heat capacity
1. A 200g piece of copper is moved from the freezer at a temperature of -15°C to a cup containing 500g of water at room temperature (20°C). If the cup has a thermal capacity of 1kJ°C-1 and ignoring heat lost calculate the final temperature of the water + copper. Specific heat capacity copper = 380 Jkg-1°C-1 Specific heat capacity water = 4200 Jkg-1°C-1 2. When 1 litre of water is placed into a kettle (water boiler) it takes 4 minutes to raise its temperature from 10°C to 100°C. How much - Gases
Gases
1. The pressure exerted by a gas on the walls of a container is given by the equation P=1/3 ρcav2 where ρ = density cav = average speed Given that the molar mass of air is 29g and its density is 1.3kgm-3 estimate how many molecules hit 1m2 of wall per second when the pressure is 100kPa. 2. The volume of a fixed mass of gas at constant pressure is inversely proportional to the pressure. A 10m3 Helium balloon is released at sea level, use the graph below to estimate - Intro to SHM
Intro to SHM
1. A fishing float made of a hollow plastic tube and a small lead ball floats as shown in the drawing. Show that if it is displaced a small distance downwards then it will oscillate with SHM. 2. A oscillates between points A and B in the frictionless tube shown. a) Calculate the time period of the oscillation. b) Is the oscillation SHM? - SHM
SHM
1. Water in the U tube shown is displaced by x and oscillates up and down. The acceleration of water surface is given by the equation a) Determine if this is SHM. b) If the length of the water column is 0.5m calculate the time period of the oscillation. 2. Show that the small amplitude oscillation of a ball rolling in the circular tube below is SHM and calculate the frequency of the oscillation. - Intro to waves
Intro to waves
1. Two pendula of slightly different length oscillate next to each other. The short one oscillates with frequency 0.52Hz and the longer one with frequency 0.50Hz. If they start of in phase determine their phase difference after 75s. 2. A stone is dropped into a pool of water causing ripple to spread out. After 10 s the circumference of the ripple is 20m. Calculate the velocity of the wave. - Refraction
Refraction
1. A ray of light is incident on a prism of refractive index 1.5 at the angle shown below Calculate the angle of deviation, D of the emerging ray. 2. To identical water waves with frequency of 0.1 Hz travel along the paths shown. One travels through a region of shallow water the other travels the whole way in deep water. If the waves start in phase what will their phase difference be when they meet? Velocity of wave in deep water = 11ms-1 Velocity of wave in shallow water - Resistance
Resistance
1. At 0°C a steel cable is 1km long and 1cm diameter when it is heated it expands and its resistivity increases. Calculate the change in resistance of the cable as it is heated from 0 - 20°C The temperature coefficient of resistance αr gives the fractional increase in resistance per °C. So increase in resistance ΔR = RoαrΔT Where Ro is the resistance at 0°C For steel αr = 0.003 °C-1 The coefficient of linear expansion αT gives the fractional increase in length per °C temperature rise. So increase - Component combinations
Component combinations
2. If each of the resistors in the circuit below has resistance R show that the total resistance between A and B is 5R/11 2. By using the fact that around any closed loop the sum of the EMFs = the sum of the PDs. Write equations for the two loops shown in the cct below. Use these equations to show that the current flowing through the 2Ω resistor is - Potential divider
Potential divider
1. A voltmeter with resistance 10kΩ is used to measure the pd across the 1kΩ resistor in the circuit below. Calculate the percentage difference between the value with and without the voltmeter. 2. A potential divider cct is made by stretching a 1m long wire with a resistance of 0.1Ω per cm from A to B as shown. A varying PD is achieved across the 5Ω resistor by moving the slider along the resistance wire. Calculate the distance from A when the PD across the 5Ω resistor is 6V. (ans - Gravitational fields
Gravitational fields
1. The diagram below represents two spheres of equal density placed a distance 18R apart. If the field strength at point P is zero show that r = 2R - Electric field
Electric field
1. An electron is accelerated in the electric field shown. Calculate the velocity of the electron just before it hits the top plate (ignore gravity). Mass of electron = 9.1 x 10-31 kg Charge of electron = 1.6 x 10-19 C - Magnetic Field
Magnetic Field
1. The flux density, B a distance a from a long straight wire carrying a current I is given by the equation Where the permeabilty of free space, μo=4π x 10-7 NA-2 Use this information to find the Force between two 100m long parallel cables carrying 50A separated by 2m. - Energy Flow
Energy Flow
1. The diagram below show the Sankey diagram for an engine If 106 J of energy are put into the engine how much energy is converted to a. Heat due to friction b. Heat loss c. Useful work 2. A car is said to lose about 70% of its energy to heat which is transferred to the cooling system. In the cooling system water is passed around the engine at a rate of about 150 litres per minute. If a car is using 24 litres of fuel per hour and - Power production
Power production
1. Approximately 8000 TWh of electricity is produced from Coal per year. (data source IEA/OECD) a. If coal accounts for 41% of electricity produced what is the total electrical energy produced per year? b. If the Energy density of coal is 24MJ/kg and the efficiency of a coal fired power station is 40%. What mass of coal is used to produce electricity per year? c. If there is 800 billion tonnes of coal left in the earth for how many years can electricity be produced from coal at the present - Nuclear Power
Nuclear Power
1. An example of a fission reaction is: 235U +n →3n + 90Kr + 143Ba Using information from the web calculate how much energy will be released per fission in MeV. 2. A nuclear powered ship has an engine with a maximum power output of 100MW. The fuel is Uranium that has been enriched so that it contains 10% 235U. a. How many 235U nuclei will 1kg of the fuel contain? b. Using your answer to question 1 how much energy will be released when by 1kg of fuel? - Fusion Power
Fusion Power
1. An example of a fusion reaction is: 3He + 3He →4He + 2p a. Use the hyperphysics database to look up binding energies and hence calculate the amount of energy released per fusion. b. The density of the sun’s core is 160gcm-3. Calculate the energy released in J if 1cm3 of 3He were to fuse to form 4He. c. The temperature of the core is 15MK. calculate the amount of KE contained by all of the nuclei in 1cm3 of the core. (KE of 1 nucleus = 3/2kT where - Alternative power
Alternative power
1. The diagram below shows a proposal for a wave power generator. Two floating tanks are joined together with a pipe that contains a turbine which is connected to a generator. The tanks are positioned so that when one is on the crest of a wave the other is in a trough. Estimate the power generated given the following data. Tank volume = 10m3 Wave amplitude = 4m Wavelength = 20m Wave velocity = 5ms-1 Efficiency = 20% 2. The average wind speed at a height of 80m over the - Radiant energy
Radiant energy
1.Given the following data show that average temperature of the moon’s surface is about -4°C. (Note this is the average temp. the sunny side can be over 100°C and the dark side as low as 150°C) Distance to sun 1.5 x 1011 m Radius 2 x 10 6 m Albedo 12% Power emitted by Sun 4 x1026 W 2. The human body has a temperature of 37°C and a surface area of about 2m2. Estimate the energy radiated per day and compare the value obtained to the amount of food - Projectile motion
Projectile motion
1. A ball is thrown at 50ms-1 at an angle of 30°towards a raised area as shown in the picture. Calculate the range (final horizontal displacement) of the ball. 2. An arrow is shot at a target as shown below. If the speed of the arrow is 90ms-1 at what angle must the arrow be aimed? - Gases AHL
Gases AHL
1. When a SCUBA diver dives below the surface of the sea the pressure exerted on their body will increase according to the formula P=ρgh. At a depth of 100m diver blows out a bubble of air with 2cm radius. How big will this bubble be just before it breaks the surface? 2. A SCUBA diver breathing air from an 18liter tank, on the surface, takes 0.5 litres of air into her lungs 20 times a minute. a. If the tank has a volume of 18 litres and a pressure - First Law
First Law
1. A gas is contained in a cylinder by a moveable piston. Volume = 30cm3 Temperature = 305K Pressure = 105 kPa The gas undergoes the following cycle: constant pressure expansion to 90 cm3 cooling at constant volume to 689 K constant pressure compression to its original volume heating at constant volume to 305 K Calculate that the net work done by the gas during this cycle is 1.56 J 2. 100g of water are converted to steam by heating water in a piston as shown. Assuming that - Heat pump
Heat pump
1. The PV diagram below represents a heat pump with 5 moles of gas. Given the additional information that the change in internal energy ΔQ, when the temperature of a gas changes by ΔT is given by the equation ΔU = 3/2nRΔT where n = the number of moles R= 8.31 Jmol-1 K-1 Calculate the following: a. the temperature at A, B , C and D b. heat lost from A-B c. heat gained from B-C d. heat gained from C-D e. heat lost from D-A f. If the heat - The Guitar
The Guitar
1. The E string of an electric guitar has a diameter of 0.203mm and is made of steel. The velocity of the wave in a string is given by the formula v=√T/µ where T = Tension and µ = Mass per unit length. Calculate the Tension of the string give the following data Density of steel = 8gcm-3 Frequency of E string = 330 Hz Length of string = 70 cm - Doppler
Doppler
1. A police radar trap uses a frequency of 10GHz to measure the velocity of a speeding car (speed limit 100kmhr-1). If the shift in frequency is 1000Hz, calculate the speed of the car. A second car travelling in an outside lane at the same speed (as shown) also gets measured by the police but does not get charged. Suggest why and calculate the measured speed? 2. A child is screaming at a constant frequency of 3000Hz whilst riding a roundabout revolving once every 2 seconds. If the radius of - Single slit Diffraction
Single slit Diffraction
1. Laser light of wavelength 600nm passes through a narrow slit. The diffraction pattern is projected onto a screen where the width of the principal maximum is 10cm. The screen is now moved 10cm closer to the slit and the width of the maxima decreases to 9cm. calculate the width of the slit. - Resolution
Resolution
1. A telescope can just resolve two stars a distance 3.46 x 1011m apart at a distance of 10 lyr. How close will two stars be at a distance of 15lyr when just resolved by the same telescope? 2. Two point sources of blue light are just resolved at a distance of 20m by an optical instrument. At what distance will it be possible to resolve two red points seperated by the same distance? Wavelength of blue light = 450nm Wavelength of red light = - Polarisation
Polarisation
1. A parallel beam of unpolarised light is transmitted through the polarisers shown below. The laser has a power of 2mW and the diameter of the beam is 4mm. Calculate the Intensity of the beam a. at A b. B c. at B if 2 is rotated through 45° d. at B if 3 is now rotated through 90° e. at B if 2 is now - Gravitational Potential
Gravitational Potential
1. The moon is about 1/4 the diameter of the Earth and 1/81 of its mass. The distance between the moon and Earth is approximately 60 x radius of the earth. Sketch a graph of the variation of gravitational potential between the Earth and the moon. A rocket is fired from the Earth towards the Moon. Just after it leaves the atmosphere the rocket motors are turned off leaving it to fly to the Moon without propulsion. Ignoring any complications due to the movement of the earth and the Moon - Orbits
Orbits
1. A camera with an aperture of 10cm is mounted on a satellite orbitting the Earth twice a day. Calculate the distance between the closest resolvable points that can be photographed on the surface of the earth. - Electrostatics
Electrostatics
1. Three positively charged spheres +Q are placed at the corners of an equilateral triangle as shown. Show that if a 4th charged sphere of charge -Q/√3 is placed in the centre the charges will be in equilibrium. 2. A hollow metal sphere of radius 10cm is connected to a 200V supply and then isolated. It is then connected to a second isolated sphere of radius 5cm with a conductor. Calculate the final potential of the sphere. - Induction
Induction
1. A rectangular frame of stiff wire with resistance 10Ω is moved horizontally at a uniform velocity of 2ms-1 into a uniform field of 3T between the poles of the magnet shown below. Calculate the force required to keep the wire moving at a constant velocity for a distance of 1m. Sketch a graph of the variation of the force as the wire moves a total distance of 4m 2. A circular disc rotates in a uniform perpendicular field at a rate of 4 revolutions per second as shown. If - Transmission of power
Transmission of power
1. The diagram shows a section of the distribution network from a power station. The distance from the power station to the town is 20km. The cables used are made of aluminium and have a cross sectional area of 100mm2. How many cables would have to be used in parallel to reach an acceptable power loss of 2.5% when delivering 2GW of power Resistivity of Al = 28.2 x 10-9 Ωm 2. Given that the RMS value of a signal is given by Show that the RMS value of - Photoelectric Effect
Photoelectric Effect
1. A filament lamp gives out light of average wavelength 600nm when connected to a 220V supply. The current flowing through the filament is 5A (rms). If 3x1020 photons are emitted per second calculate the % of the energy delivered to the lamp that is converted into light. 2. The graph below was taken from the PHET photoelectric simulation. Use the graph to find a. Planks constant b. The workfunction of - Wave particle duality
Wave particle duality
1. Given that the resolving power of a microscope is proportional to the 1/wavelength of radiation used, show that if 600nm light is replaced with electrons accelerated through a Pd of 40,000V the resolving power will increase by a factor 105. Note: The resolving power also depends on the size of the aperture and the refractive index of the lenses. In this calculation assume all of this is constant, in reality of course you can't simply send electrons through an optical microscope. some more - Thomson's experiment
Thomson's experiment
1. Thomson's experiment was performed to find the charge to mass ratio for electrons. Here is a video of the experiment: Although this isn't on the IB syllabus you have done enough physics to understand how it works and perform a calculation. a. The first stage is an electron gun Calculate the velocity of an electron accelerated by 2000V b. The second stage consists of a region of electric and magnetic field. The magnetic field is created by a pair of coils called Helmholtz coils. The field between the coils - Atomic Models
Atomic Models
1. Schrödingers model predicts that the energy of an atomic electron is equal to -k/n2 where k is a constant and n an integer. If the energy required to take an electron from it's ground state (n=1) and remove it from the atom (n = ∞) is 13.6eV. Show that the wavelength of em radiation emitted when an electron changes from n=4 to n=2 is 486nm. - Nuclear AHL
Nuclear AHL
1. The diagram below show the paths of two isotopes of Oxygen (16O and 18O) in a mass spectrometer. Show that if the radius of the 16O ions is 0.16m then the seperation of the traces on the photoplate is 0.04m. 2. A 1mg sample of Carbon from an ancient piece of parchment is analysed with a mass spectrometer and found to contain 40,000 atoms of 14C. Use this data to show that the age of the parchment is about 1,900 years. - Relative velocity
Relative velocity
1. In the animation the girl in the purple dress measures that the time elapsed between the 1st and the 7th time the ball hits the lower plate is 4s and the girl in the red dress measures the speed of the rocket as 2ms-1. If the distance between the plates is 1m calculate. a. The Speed of the ball measured by the girl in the purple dress. b. The distance travelled by the ball as measured by the girl in the red dress. b. The speed of the ball - Michelson Morley
Michelson Morley
1. The Michelson Morley experiment attempted to detect the Earth's movement through the aether by measuring the interference effect caused by the passage of two beams of light travelling in different directions through the aether. The earth moves around the centre of our galaxy at approximately 250kms-1. Taking this to be the speed of the earth relative to the aether calculate the path difference of the two light beams travelling along the paths
- Units and Measurement
- Tests
Tests
Introduction This section is a compilation of all the "mini tests" that I use throughout the year. The idea is that I start each lesson with a test on what we covered the lesson before. I say that's the idea because it doesn't work quite like that in real life, it takes a bit of organising to print them out etc. In reality I'd say my students do on average one test each week, these last about 15 minutes. Looking at some of the questions you'd think that they should- SL/HL Core tests
SL/HL Core tests
Mechanics Units & quantities Vectors and Scalars Distance, displacement and speed constant acceleration Graphs Forces Newton's 1st Law Newton's 2nd Newton's 3rd Work and energy Energy and power Circular motion Thermal Moles and heat transfer Temperature and heat Specific heat capacity Gases Gases 2 SHM and Waves Oscillations SHM Wave properties Waves Circuits Electrical circuits Ohm's law Resistor combinations Power and potential divider Fields Gravitational fields Electric fields Magnetic field Charges in a B field Atomic and Nuclear Electron energy levels The nucleus Binding energy Beta decay Alpha decay Fission - SL/HL Core answers
SL/HL Core answers
Mechanics Units & quantities Vectors and Scalars Distance, displacement and speed constant acceleration Graphs Forces Newton's 1st Law Newton's 2nd Newton's 3rd Work and energy Energy and power Circular motion Thermal Moles and heat transfer Temperature and heat Specific heat capacity Gases Gases 2 SHM and Waves Oscillations SHM Wave properties Waves Circuits Electrical circuits Ohm's law Resistor combinations Power and potential divider Fields Gravitational fields Electric fields Magnetic field Charges in a B field Atomic and Nuclear Electron energy levels The nucleus Binding energy Beta decay Alpha decay Fission - AHL tests
AHL tests
Projectiles Projectiles Thermodynamics Carnot cycle and 2nd law Waves Doppler effect Diffraction Resolution Polarisation Fields Gravitational potential Escape velocity and orbits Electric Potential Charges in a B field answers Faradays law Lenz's law AC and the transformer Atomic and Nuclear Atomic models Photoelectric effect Exponential decay Digital Digital signals CD Digital - AHL answers
AHL answers
Projectiles Projectiles Thermodynamics Carnot cycle and 2nd law Waves Doppler effect Diffraction Resolution Polarisation Fields Gravitational potential Escape velocity and orbits Electric Potential Charges in a B field answers Faradays law Lenz's law AC and the transformer Atomic and Nuclear Atomic models Photoelectric effect Exponential decay Digital Digital signals CD Digital
- SL/HL Core tests
- Multiple Choice tests
Multiple Choice tests
Introduction These multiple choice quizzes are designed to help students understand the important concepts in each lesson. They are all online which means they are marked automatically and the students get the explanation of the correct answer. They are not meant to be used for assessment, that's what the paper tests are for. I used to use multiple choice tests for assessment but I found that although easy to mark they don't give me much information about where the students are going wrong so now I use the same- Measurement and Uncertainties
Measurement and Uncertainties
39 - Vectors
Vectors
42 - Speed and velocity
Speed and velocity
43 - Constant acceleration
Constant acceleration
45 - Graphs of motion
Graphs of motion
46 - Forces
Forces
47 - Newton's 1st law
Newton's 1st law
48 Photographs courtesy of © Ian Britton - - Newton's 2nd law
Newton's 2nd law
49 - Newton's 3rd law
Newton's 3rd law
50 - Work and energy
Work and energy
54 - Kinetic and potential energy
Kinetic and potential energy
55 - Circular motion
Circular motion
56 - Temperature and heat
Temperature and heat
57 - Moles and heat transfer
Moles and heat transfer
58 - Specific heat capacity
Specific heat capacity
59 - Latent heat & gases
Latent heat & gases
60 - Oscillations
Oscillations
61 - SHM
SHM
62 - Wave properties
Wave properties
63 - Electric circuits
Electric circuits
65 - Ohm's Law
Ohm's Law
66 - Component combinations
Component combinations
67 - Power and potential dividers
Power and potential dividers
68 - Gravitational Field
Gravitational Field
69 - Electric fields
Electric fields
71 - Magnetic fields
Magnetic fields
74 - Charges in a B field
Charges in a B field
75 - Atomic models
Atomic models
77 - Electron energy levels
Electron energy levels
81 - The nucleus
The nucleus
82 - Binding energy
Binding energy
83 - Radioactive decay
Radioactive decay
84 - Exponential decay
Exponential decay
85 - fission and fusion
fission and fusion
86 - Fuel
Fuel
87 - Electrical energy
Electrical energy
88 - Nuclear power
Nuclear power
89 - Fusion power
Fusion power
90 - Renewable energy
Renewable energy
91 - EM radiation and matter
EM radiation and matter
92 - Global warming
Global warming
93
- Measurement and Uncertainties
- AHL mutiple choice tests
AHL mutiple choice tests
More multiple choice quizzes for revision but this time on the AHL- Projectiles
Projectiles
94 - Gases
Gases
95 - 1st Law
1st Law
96 - 2nd law
2nd law
97 - Standing waves
Standing waves
98 - Doppler
Doppler
99 - Diffraction and resolution
Diffraction and resolution
100 - Polarisation
Polarisation
101 - Gravitational potential
Gravitational potential
102 - Orbits
Orbits
103 - Electric potential
Electric potential
104 - Faraday's law
Faraday's law
105 - lenzs law and AC
lenzs law and AC
106 - Transformers and power
Transformers and power
108 - Photoelectric
Photoelectric
109 - Wave particle duality
Wave particle duality
110 - nuclear mass and exp decay
nuclear mass and exp decay
111 - Digital signals
Digital signals
113 - Digital storage
Digital storage
120
- Projectiles
- Practical worksheets
Practical worksheets
Practical worksheets by subject Core Measurement Datalogging basics How to use the pasco 500 datalogger to measure temperature. LoggerPro basics An introduction to using loggerpro software to plot a graph. LoggerPro curves Using loggerpro to plot best fi curves. Excel basics How to calculate uncertainties in a spreadsheet LoggerPro Linear Plotting best fit straight lines plus manually placing steepest and least steep lines. Mechanics DCP Inclined plane Using a photogate to measure instantaneous velocity then finding acceleration by plotting v2 against s DCP Ball on a - Worked Solutions
Worked Solutions
Paper 1 2009 May TZ1 May TZ2 November 2010 May TZ1 May TZ2 November Paper 2 2009 May TZ1 May TZ2 November 2010 May TZ1 May TZ2 November Paper 3 2009 May TZ1 May TZ2 November 2010 May TZ1 May TZ2 - Simulations
Simulations
Introduction Ever since I got my SMART board about 4 years ago I have been using simulations as an integral part of my teaching. I only realised how dependent I had become when an oil spill caused my classroom to be closed and I had to teach for a month in a room with no board. It was not a pleasant experience, I first tried to use a chalkboard with a projector to the side but this was very clumsy. Eventually I abandoned the animations and went back to the- Core Topics
Core Topics
Topic 1: Physics and physical measurement 1.1 The realm of physics 1.2 Measurement and uncertainties 1.3 Vectors and scalars Addition of vectors Topic 2 : Mechanics 2.1 Kinematics Visualising vectors Graphs of motion 2.2 Forces and dynamics Forces in 1D Bouyancy Box on a ramp 2.3 Work, energy and power Energy changes 2.4 Uniform circular motion Body on a turntable Topic 3 : Thermal physics 3.1 Thermal concepts Friction and energy 3.2 Thermal properties of matter Solid liquid and gas Gas molecules Properties of a gas Topic 4: Oscillations and - AHL
AHL
Topic 9: Motion in fields 9.1 Projectile motion Projectile motion 9.2 Gravitational field, potential and energy Energy Skate park Lunar landing 9.3 Electric field, potential and energy Electric Potential Charges in a Field 9.4 Orbital motion Solar System Topic 10: Thermal physics 10.1 Thermodynamics Gas properties PV graphs 10.2 Processes 10.3 Second law of thermodynamics and entropy Topic 11: Wave phenomena 11.1 Standing (stationary) waves Waves in a string 11.2 Doppler effect Doppler Ripple Tank 11.3 Diffraction Huygens Single slit Interference 11.4 Resolution 11.5 Polarization Topic 12: Electromagnetic induction 12.1 - Astrophysics
Astrophysics
E1 Introduction to the universe Solar System Phases of the moon Rotating Sky Seasons E2 Stellar radiation and stellar types Black body radiation Binary Star HR Diagram E3 Stellar distances E4 Cosmology E5 Stellar processes and stellar evolution E6 Galaxies and the expanding universe Hubbles Law - Communications
Communications
F1 Radio communication AM FM F2 Digital signals F3 Optic fibre transmission F4 Channels of communication F5 Electronics F6 The mobile phone system Cell Phone - Digital
Digital
C1 Analogue and digital signals C2 Data capture; digital imaging using charge-coupled devices (CCDs) CCD C3 Electronics C4 The mobile phone system Cell Phone - Electromagnetic
Electromagnetic
Electromagnetic Waves G1 Nature of EM waves and light sources G2 Optical instruments Ray Optics G3 Two-source interference of waves Two slits Ripple tank Interference G4 Diffraction grating G5 X-rays G6 Thin-film interference Thin Films - Medical
Medical
I1 The ear and hearing The Ear I2 Medical imaging CAT I3 Radiation in medicine - Particle
Particle
J1 Particles and interactions Feynman Diagrams J2 Particle accelerators and detectors Accelerator CERN Cyclotron J3 Quarks Quarks J4 Leptons and the standard model J5 Experimental evidence for the quark and standard models J6 Cosmology and strings - Quantum
Quantum
Quantum and Nuclear Physics B1 Quantum physics Hydrogen atom Discharge tube Photoelectric B2 Nuclear physics Rutherfords experiment Milikans experiment Quantum and Nuclear Physics B1 Quantum physics Hydrogen atom Discharge tube Photoelectric B2 Nuclear physics Rutherfords experiment Milikans experiment - Relativity
Relativity
H1 Introduction to relativity Michelson Morley H2 Concepts and postulates of special relativity H3 Relativistic kinematics H4 Some consequences of special relativity Light clock Simultaneity H5 Evidence to support special relativity H6 Relativistic momentum and energy H7 General relativity H8 Evidence to support general relativity - Relativity & Particle
Relativity & Particle
D1 Introduction to relativity Michelson Morley D2 Concepts and postulates of special relativity Light clock Simultaneity D3 Relativistic kinematics D4 Particles and interactions Feynman Diagrams D5 Quarks Quarks - Sight & Waves
Sight & Waves
A1 The eye and sight The eye A2 Standing (stationary) waves Waves in a string A3 Doppler effect Moving Source A4 Diffraction Single Slit A5 Resolution Rayleigh Criterion A6 Polarization Polarization
- Core Topics
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Free pages | |
In this section, the pages below are free. The blog is also free. To access other pages you must subscribe. | |
| Core Topics | Oscillations |
| Wave properties | Component combinations |
| Charges in a B field | Standing waves |
| Diffraction and resolution | Problems |
| Units and Measurement | Solutions |
| Vectors and scalars | Solutions |
| Velocity and speed | Solutions |
Section Summary
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|
Selected Pages
Relative velocity - free
1. In the animation the girl in the purple dress measures that the time elapsed between the 1st and the 7th time the ball hits the lower plate is 4s and the... more»
Michelson Morley - free
1. The Michelson Morley experiment attempted to detect the Earth's movement through the aether by measuring the interference effect caused by the passage of two beams of light travelling in different directions... more»
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1. Thomson's experiment was performed to find the charge to mass ratio for electrons. Here is a video of the experiment: Although this isn't on the IB syllabus you have done enough... more»
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1. The flux density, B a distance a from a long straight wire carrying a current I is given by the equation Where the permeabilty of free space, μo=4π x 10-7 NA-2... more»
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1. The diagram below show the paths of two isotopes of Oxygen (16O and 18O) in a mass spectrometer. Show that if the radius of the 16O ions is 0.16m then the... more»
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1. Schrödingers model predicts that the energy of an atomic electron is equal to -k/n2 where k is a constant and n an integer. If the energy required to take an electron... more»
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