G3 Pure Physics / O-Level Physics course check
Answer 12 questions across G3 Pure Physics / O-Level Physics and see which topics to work on next.
Learning goals
- State that charges are positive or negative and are measured in coulombs
- State that like charges repel and unlike charges attract
- Describe internal energy as the total kinetic energy of the particles' random motion plus the total potential energy between them
- Apply the principle of moments to new situations and problems
- Treat the weight of a body as acting at a single point, its centre of gravity
- Describe melting, solidification, boiling and condensation as energy transfers without a change in temperature
- Apply charge equals current multiplied by time
- Distinguish conventional current from electron flow
- Define source e.m.f. as work done per unit charge around a circuit
- Sketch and interpret required current–voltage characteristics
- Describe the effect of temperature on metallic resistance
- Define component potential difference as work done per unit charge
- State current as rate of charge flow measured in amperes
- Apply resistance equals potential difference divided by current
- State resistance as potential difference divided by current
- Calculate total e.m.f. for sources in series
- Apply wire-resistance proportionalities for length and cross-sectional area
- Apply current conservation at parallel junctions
- Apply equal potential difference across parallel branches
- Describe variable-potential-divider action
- Calculate effective resistance in parallel
- Calculate effective resistance in series
- Solve simple NTC and LDR potential-divider problems
- Describe light-dependent resistor (LDR) action as an input transducer
- Describe NTC thermistor action as an input transducer
- Apply the same-current rule in series circuits
- Apply the potential-difference sum in series circuits
- Recognise and interpret circuit symbols for D.C. and A.C. supplies, potentiometers, bells, light-dependent resistors and thermistors
- Draw circuit diagrams with D.C. and A.C. supplies, potentiometers, bells, light-dependent resistors and thermistors
- Recognise and interpret circuit symbols for cells, batteries, switches, lamps, LEDs, resistors, fuses, ammeters and voltmeters
- Draw circuit diagrams with cells, batteries, switches, lamps, LEDs, fixed and variable resistors, fuses, ammeters and voltmeters
- Solve whole-circuit problems using consistent quantities
- Identify action–reaction pairs on interacting bodies
- Describe the effect of balanced and unbalanced forces on a body
- Describe falling with and without air resistance, including terminal velocity
- Describe ways a force may change motion
- Draw free-body diagrams for force systems in at most two dimensions
- Explain the effects of friction on motion
- Relate mass to resistance to change in motion
- Apply resultant force = mass × acceleration
- Solve three-force static equilibrium graphically
- Describe a simple A.C. generator and slip rings
- Sketch a simple A.C. generator voltage–time graph
- Deduce that a changing magnetic field can induce an e.m.f.
- Explain cable loss and high-voltage transmission
- Apply ideal-transformer equations
- Deduce factors affecting induced e.m.f. magnitude
- Deduce that induced e.m.f. opposes the change producing it
- Describe a simple iron-cored transformer
- Describe electromagnet applications
- Describe magnetic force on a charged-particle beam
- Explain the turning effect on a current-carrying coil
- Describe experiments showing the force on a current-carrying conductor in a magnetic field
- Relate current magnitude and direction to magnetic field
- Use Fleming’s left-hand rule
- Predict force reversal when current or field reverses
- Describe the effect of winding a motor coil on a soft-iron cylinder
- Interpret the field pattern around a current-carrying solenoid
- Draw the magnetic field pattern around a current-carrying solenoid
- Describe split-ring commutator action
- Interpret the field pattern around a straight current-carrying wire
- Draw the magnetic field pattern around a straight current-carrying wire
- Explain how current and turns increase the turning effect
- Describe hazardous heating effects of electromagnetic over-exposure
- Describe hazardous ionising effects on living cells and tissue
- Order the seven electromagnetic-spectrum regions
- State that all electromagnetic waves travel at the same speed in vacuum
- State that all electromagnetic waves are transverse
- State typical uses of gamma rays
- State typical uses of infrared
- State typical uses of microwaves
- State typical uses of radio waves
- State typical uses of ultraviolet
- State typical uses of visible light
- State typical uses of X-rays
- Relate spectrum order to wavelength and frequency
- State and apply the principle of conservation of energy
- Calculate efficiency as useful energy output / total energy input
- Recall and apply Ep = mgh near the Earth's surface in new situations
- Recall and apply Ek = ½mv² in new situations
- Recall and apply power = energy transfer / time taken
- Evaluate prescribed electricity-generation resources by efficiency, cost, reliability and environmental impact
- Recognise kinetic, potential, nuclear and internal energy stores
- Describe electrical energy transfer by an electric current
- Describe energy transfer by heating due to a temperature difference
- Describe mechanical energy transfer by a force acting over a distance
- Describe energy transfer by electromagnetic and mechanical waves
- Recall and apply work done = force × distance moved in the force direction
- Explain how liquid-column height measures atmospheric pressure
- Distinguish contact forces from non-contact forces
- Apply density = mass ÷ volume
- Describe a gravitational field as a region where a mass experiences gravitational force
- Define gravitational field strength as gravitational force per unit mass
- Explain pressure transmission in a hydraulic press
- Apply liquid-column pressure = height × density × gravitational field strength
- Explain how a manometer measures pressure difference
- State that mass measures the amount of matter in a body
- Distinguish mass from weight
- Apply pressure = force ÷ area
- Define pressure as force per unit area
- Apply weight = mass × gravitational field strength
- Use amplitude, frequency and wavelength to describe wave motion
- Explain reflected-sound echoes and use them to measure distance
- Explain that waves transfer energy
- Relate sound loudness to amplitude and pitch to frequency
- Explain that wave energy transfer does not transfer matter
- Describe sound using compressions and rarefactions
- Explain sound production by vibration and the need for a medium
- Recall and apply wave speed = frequency × wavelength
- Define and use wave speed and period and interpret wave graphs
- Compare transverse and longitudinal waves and give examples
- Explain ultrasound use in sonar and soft-tissue scanning
- Describe wave generation by vibrating sources, ropes and springs
- Describe ripple-tank waves using wavefronts
- Calculate acceleration as change in velocity divided by time taken
- Calculate average speed from total distance and total time
- Deduce rest and uniform or non-uniform velocity from a displacement–time graph
- Plot and interpret displacement–time and velocity–time graphs in one dimension
- Recall constant free-fall acceleration near Earth as approximately 10 m/s²
- Interpret examples of non-uniform acceleration
- State what speed means
- State what uniform acceleration means
- State what velocity means, including its direction
- Use signed area under a velocity–time graph to determine displacement
- Deduce rest, uniform velocity and uniform or non-uniform acceleration from a velocity–time graph
- Infer random molecular motion from a Brownian-motion experiment
- Compare physical properties of solids, liquids and gases
- Explain state properties using particle arrangement, motion, forces and separation
- Explain gas pressure using particle collisions with container walls
- Relate temperature rise to increased average kinetic energy of particles
- Describe how a thin converging lens acts on a light beam
- Define the focal length of a converging lens
- Describe lens images as real or virtual, magnified or diminished, and upright or inverted
- Construct real and virtual image ray diagrams for a thin converging lens
- Apply the law of reflection in constructions, measurements and calculations
- Use the normal, angle of incidence and angle of reflection
- Define refractive index as vacuum light speed divided by medium light speed
- Apply sin i divided by sin r as a constant for a fixed pair of media
- Use the normal, angle of incidence and angle of refraction
- Explain the conditions for total internal reflection
- Explain the critical angle
- Apply total internal reflection to optical fibres and state advantages
- Interpret bar-magnet field patterns
- Draw the magnetic field pattern around a bar magnet and between the poles of two bar magnets
- Determine magnetic-field direction with a compass or bar magnet
- Describe induced magnetism
- Distinguish temporary and permanent magnets
- Add two vectors graphically to determine a resultant
- Select and justify measuring instruments by range and precision
- Compare orders of magnitude from a typical atom to the Earth
- Represent a physical quantity with a numerical magnitude and unit
- Distinguish scalar and vector quantities and give examples
- Recall the six prescribed SI base quantities and their units
- Use the prescribed SI prefixes from nano to tera
- Calculate electrical energy and cost in kWh
- Apply E = VIt
- Identify the hazard from damaged insulation
- Identify the hazard from damp conditions
- Identify the hazard from overheating cables
- Explain electrical heating in common appliances
- State the meanings and roles of live, neutral and earth
- Explain live-wire placement of switches, fuses and circuit breakers
- Describe the wiring of a mains plug
- Apply P = VI
- Explain how fuses and circuit breakers protect circuits
- Explain why double-insulated appliances do not need an earth wire
- Explain why metal casings are earthed
- Choose and justify an appropriate fuse rating
- Describe alpha, beta-minus and gamma radiation
- State radioactivity applications and hazards
- Describe atomic composition
- Explain background radiation
- Use nuclide equations for radioactive decay
- Evaluate uses and hazards using half-life and radiation properties
- Relate fission and fusion to nuclear-energy release
- Use half-life in tables and decay curves
- Compare ionising effect and penetrating power
- Use and interpret nuclide notation
- Use proton number, nucleon number and isotope
- Explain random and spontaneous nuclear decay
- Measurements of length, mass, temperature, time interval, volume of liquids/solids and force (e.g. weight) using appropriate instruments
- Determination of the resistance of a circuit component
- Describe an electric field as a region where charge experiences force
- Describe potential electrostatic-charging hazards
- Describe experiments that charge a conductor by induction
- Recall that the field lines of an isolated point charge give the direction of the force on a positive test charge
- Draw the directed electric field of an isolated point charge
- Describe an electrostatic precipitator and transfer the principle
- Explain charging by rubbing as electron transfer
- Interpret the electric-field pattern between two isolated point charges
- Draw the electric-field pattern between two isolated point charges
- Describe convection in fluids through density changes and bulk motion
- Apply conduction, convection and radiation in everyday systems
- Describe conduction in solids through particle vibration and mobile electrons
- Explain that energy transfer by electromagnetic radiation needs no material medium
- Explain how surface colour, texture, temperature and area affect radiation transfer rate
- Explain heating from higher to lower temperature until thermal equilibrium
- Explain latent heat using particle behaviour
- Apply energy transferred = mass × specific heat capacity × temperature change
- Apply energy transferred for a change of state = mass × specific latent heat
- Explain qualitatively how centre-of-gravity position affects stability
- Apply moment = force × perpendicular distance from the pivot
- Describe a moment as a force's turning effect in everyday examples
Course check
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About 15 minutes
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Beyond the syllabus: optional enrichment that does not count towards your progress.
G3 Pure Physics / O-Level Physics targeted foundation repair
A text-first targeted review path.
About 10 minutes
Review the lesson explanation and worked examples, then return to the formative check when you are ready.