BRAINCAKE

Edexcel GCSE Physics

Edexcel Physics (1PH0)15 topics296 lessons

Edexcel GCSE Physics revision for Edexcel Physics (1PH0): 15 topics and 296 short lessons, each with R.E.C.I.P.E. recall steps and a quiz. The topics follow the Edexcel specification.

Subscribe

1. Key concepts of physics

4 lessons

  1. Recall and use the SI unit for physical quantities
  2. Multiples and sub-multiples of units
  3. Converting between units
  4. Significant figures and standard form

2. Motion and forces

33 lessons

  1. Scalar quantities
  2. Vector quantities
  3. Vectors compared with scalars
  4. Examples of vectors and scalars
  5. Velocity and speed
  6. Speed, distance and time
  7. Distance/time graphs and speed
  8. Calculating acceleration
  9. The equation v² − u² = 2ax
  10. Velocity/time graphs and acceleration
  11. Measuring speed in the laboratory
  12. Typical speeds
  13. Acceleration in free fall and everyday accelerations
  14. Newton's first law
  15. Newton's second law
  16. Weight and gravitational field strength
  17. Measuring weight
  18. Weight and gravitational field strength
  19. Core Practical: Force, mass and acceleration
  20. Circular motion and changing velocity
  21. Centripetal force
  22. Inertial mass
  23. Newton's third law and collisions
  24. Momentum
  25. Momentum in collisions
  26. Force and change in momentum
  27. Measuring reaction times
  28. Stopping distance
  29. Factors affecting stopping distance
  30. Factors affecting reaction time
  31. Dangers of large decelerations and estimating forces on the road
  32. Estimating stopping distances at typical speeds
  33. Work done and braking distance

3. Conservation of energy

14 lessons

  1. Gravitational potential energy
  2. Kinetic energy
  3. Energy transfer diagrams
  4. Conservation of energy
  5. Changes in energy stores
  6. Energy in a closed system
  7. Explain that mechanical processes become wasteful when they cause a rise in temperature so dissipating energy in heating the surroundings
  8. Explain, using examples, how in all system changes energy is dissipated so that it is stored in less useful ways
  9. Explain ways of reducing unwanted energy transfer including through lubrication, thermal insulation
  10. Describe the effects of the thickness and thermal conductivity of the walls of a building on its rate of cooling qualitatively
  11. Recall and use the equation: efficiency = useful energy transferred by the device / total energy supplied to the device
  12. Explain how efficiency can be increased
  13. Energy sources on Earth and how they are used
  14. Patterns and trends in the use of energy resources

4. Waves

17 lessons

  1. Waves transfer energy and information, not matter
  2. Evidence that the wave travels, not the medium
  3. Frequency and wavelength
  4. Amplitude, period, wave velocity and wavefront
  5. Longitudinal and transverse waves
  6. Wave speed equations
  7. Measuring the speed of sound and of ripples on water
  8. Calculating depth or distance from time and wave velocity
  9. Reflection, refraction, transmission and absorption at interfaces
  10. Refraction at a boundary
  11. How substances treat waves of different wavelengths
  12. Converting between sound waves and vibrations in solids
  13. Ultrasound
  14. Infrasound
  15. Uses of ultrasound and infrasound
  16. Sound passing between media
  17. Core practical: measuring wave speed, frequency and wavelength

5. Light and the electromagnetic spectrum

24 lessons

  1. Reflection, refraction and total internal reflection
  2. Specular and diffuse reflection
  3. Colour, absorption and filters
  4. Power, focal length and shape of a lens
  5. Converging and diverging lenses
  6. Real and virtual images from lenses
  7. All electromagnetic waves are transverse and travel at the same speed in a vacuum
  8. Electromagnetic waves transfer energy from source to observer
  9. Core Practical: Investigating refraction in rectangular glass blocks
  10. The main groupings of the electromagnetic spectrum
  11. The electromagnetic spectrum is continuous
  12. Our eyes detect only a limited range of frequencies
  13. Absorption, transmission, refraction and reflection
  14. Speed of electromagnetic waves in different substances
  15. All bodies emit radiation
  16. Constant temperature: power in equals power out
  17. Radiating less or more than is absorbed
  18. Earth's temperature and the radiation balance
  19. Core practical: surfaces and thermal radiation
  20. Danger of electromagnetic waves and frequency
  21. Harmful effects of excessive exposure to radiation
  22. Uses of electromagnetic radiation
  23. Radio waves and electrical circuits
  24. Atoms, nuclei and electromagnetic radiation

6. Radioactivity

46 lessons

  1. The structure of the atom
  2. The size of atoms and small molecules
  3. Isotopes, atomic number and mass number
  4. Elements and isotopes
  5. Relative mass and charge of particles
  6. Why atoms are neutral
  7. Electron orbits around the nucleus
  8. Electrons changing orbit
  9. Forming positive ions
  10. Types of nuclear radiation
  11. Ionising radiation
  12. Background radiation
  13. Origins of background radiation
  14. Detecting and measuring radioactivity
  15. Alpha, beta and gamma radiation
  16. Penetration and ionisation of radiations
  17. Changes in the atomic model
  18. Beta minus decay
  19. Beta-plus decay
  20. Changes to atomic number and mass number in decay
  21. Gamma emission after decay
  22. Balancing nuclear equations
  23. How activity decreases over time
  24. The becquerel
  25. Half-life
  26. Random decay and half-life
  27. Half-life calculations
  28. Uses of radioactivity
  29. Dangers of ionising radiation
  30. Dangers of radiation and half-life
  31. Radiation safety precautions
  32. Contamination and irradiation
  33. Treating tumours with radiation, inside or outside the body
  34. Radioactive tracers and PET scanners in diagnosis
  35. Why PET isotopes must be made nearby
  36. Evaluating nuclear power for generating electricity
  37. Nuclear reactions as an energy source
  38. Fission of uranium-235
  39. The principle of a chain reaction
  40. Controlling a nuclear reactor
  41. Electricity from nuclear fission
  42. Radioactive products of fission
  43. Nuclear fusion and stars
  44. Fusion compared with fission
  45. Why fusion needs high temperatures
  46. Fusion power stations

7. Astronomy

19 lessons

  1. Weight and g on Earth, the Moon and other bodies
  2. The Solar System
  3. The eight planets in order
  4. How ideas about the Solar System have changed
  5. Orbits of moons, planets, comets and artificial satellites
  6. Gravity, circular orbits and changing velocity
  7. Orbital speed and orbital radius
  8. Steady State and Big Bang theories
  9. Evidence for the Big Bang theory
  10. The accepted model for the origin of the Universe
  11. Wave sources moving relative to an observer
  12. Red-shift and distance of galaxies
  13. Red-shift and the expanding Universe
  14. Big Bang and Steady State: explaining red-shift
  15. The CMB and the accepted model
  16. Life cycle of a star like the Sun
  17. Gravity and thermal expansion in stars
  18. Life cycle of a massive star
  19. How methods of observing the Universe have changed

8. Energy – forces doing work

15 lessons

  1. Changes in the way energy is stored
  2. Energy transfer diagrams
  3. Conservation of energy in a closed system
  4. Ways of changing the energy of a system
  5. Measuring work done by a force
  6. Work done = force x distance
  7. Energy changes when a system is changed by work done by forces
  8. Change in gravitational potential energy
  9. Kinetic energy
  10. Energy dissipation in system changes
  11. Wasteful mechanical processes
  12. Power as the rate of energy transfer
  13. Power, work done and time taken
  14. The watt as joules per second
  15. Efficiency

9. Forces and their effects

10 lessons

  1. Forces: contact, non-contact and force pairs
  2. Vector and scalar quantities
  3. Vector diagrams and scale drawings
  4. Free body force diagrams
  5. Resultant force and balanced forces
  6. Describe situations where forces can cause rotation
  7. Moment of a force
  8. The principle of moments
  9. Levers and gears
  10. Lubrication and unwanted energy transfer

10. Electricity and circuits

42 lessons

  1. Structure of the atom
  2. Circuit diagrams and symbols
  3. Series and parallel circuits
  4. Using a voltmeter
  5. Potential difference and the volt
  6. Energy, charge and potential difference
  7. Measuring current with an ammeter
  8. Current as a flow of charge
  9. Charge, current and time
  10. Current in a closed circuit
  11. Current at a junction
  12. Resistance and variable resistors
  13. Potential difference, current and resistance
  14. Resistors in series and in parallel
  15. Calculations for series circuits
  16. Designing series circuits for testing and measuring
  17. Core practical: resistor and filament lamp
  18. Current and potential difference graphs
  19. Light-dependent resistors (LDRs)
  20. Thermistors
  21. Investigating resistance in devices
  22. The heating effect of a current
  23. Energy dissipated by resistance
  24. Why resistors heat up
  25. Reducing unwanted energy transfer in low resistance wires
  26. Advantages and disadvantages of the heating effect of a current
  27. Energy transferred: E = I × V × t
  28. Power as energy transferred per second
  29. Power equation: P = E ÷ t
  30. Power, potential difference and current
  31. Electrical power equations
  32. Energy transfers in domestic devices
  33. Direct and alternating voltage
  34. Direct current
  35. Alternating current
  36. UK domestic mains supply
  37. Live and neutral mains wires
  38. Earth wires, fuses and circuit breakers
  39. Switches and fuses in the live wire
  40. Potential differences of the mains wires
  41. Dangers of connecting live to earth
  42. Power ratings and energy changes

11. Static electricity

10 lessons

  1. Charging an insulator by friction
  2. Why the two materials end up oppositely charged
  3. Like and unlike charges
  4. Shocks, lightning and induction
  5. Earthing
  6. Using electrostatic charge: insecticide sprayers
  7. Dangers of sparking and earthing
  8. Electric fields
  9. Shapes of electric fields
  10. Explaining static electricity with fields

12. Magnetism and the motor effect

14 lessons

  1. Recall that unlike magnetic poles attract and like magnetic poles repel
  2. Describe the uses of permanent and temporary magnetic materials including cobalt, steel, iron and nickel
  3. Explain the difference between permanent and induced magnets
  4. Describe the shape and direction of the magnetic field around bar magnets and for a uniform field, and relate the strength of the field to the concentration of lines
  5. Describe the use of plotting compasses to show the shape and direction of the field of a magnet and the Earth’s magnetic field
  6. Explain how the behaviour of a magnetic compass is related to evidence that the core of the Earth must be magnetic
  7. Magnetic field around a straight wire
  8. Strength of the field around a wire
  9. Solenoids and electromagnets
  10. Force on a conductor near a magnet
  11. Forces from interacting magnetic fields
  12. Fleming's left-hand rule
  13. Force on a conductor in a magnetic field (F = B I l)
  14. The electric motor

13. Electromagnetic induction

11 lessons

  1. Inducing a current with a magnet and a conductor
  2. Factors affecting induced potential difference, and the opposing field
  3. Alternators and dynamos
  4. Microphones, loudspeakers and headphones
  5. How a transformer induces a current in a second circuit
  6. Transformers and the turns ratio equation
  7. The turns ratio equation for transformers
  8. Why the national grid uses high voltages
  9. Step-up and step-down transformers in the national grid
  10. The power equation for transformers
  11. Advantages of high-voltage power transmission

14. Particle model

20 lessons

  1. Kinetic theory and the states of matter
  2. Density
  3. Core Practical: Investigating density
  4. Density and the states of matter
  5. Changes of state and conservation of mass
  6. Heating and the energy stored in a system
  7. Specific heat capacity and specific latent heat
  8. Calculating energy for a temperature change
  9. Calculating energy for a change of state
  10. Reducing unwanted energy transfer
  11. Core practical: specific heat capacity of water and melting ice
  12. Gas pressure and particle motion
  13. Gas temperature, particle speed and pressure
  14. Absolute zero
  15. Kelvin and Celsius scales
  16. Compressing and expanding gases
  17. Gas pressure and force on a surface
  18. Volume and pressure of a gas at constant temperature
  19. Pressure and volume of a gas at constant temperature
  20. Work done on a gas and its temperature

15. Forces and matter

17 lessons

  1. Why changing an object's shape needs more than one force
  2. Elastic and inelastic distortion
  3. Force, extension and the spring constant
  4. Work done in stretching a spring
  5. Linear and non-linear force-extension relationships
  6. Core practical: force, extension and work done for a spring
  7. Atmospheric pressure and height
  8. Pressure in a fluid
  9. Fluid pressure acts at right angles
  10. Pressure, force and area
  11. Calculating pressure
  12. Fluid pressure, depth and density
  13. Pressure in liquids: density and depth
  14. Calculating pressure in a liquid
  15. Upthrust on an object in a fluid
  16. Upthrust and weight of fluid displaced
  17. Floating and sinking