Key term
AQA GCSE Physics 8463
Atomic Structure
Topic overviewThe structure of an atomMass number, atomic number and isotopesFrom the plum pudding model to the nuclear modelChadwick, the neutron, and comparing the modelsRadioactive decay and nuclear radiationNuclear equationsHalf-lives and the random nature of radioactive decayRadioactive contaminationBackground radiationUses of nuclear radiation, and how half-life affects hazardNuclear fission and nuclear fusion
Electricity
Topic overviewCircuit symbols, electrical charge and currentCurrent, resistance and potential differenceOhmic conductors, filament lamps, diodes and thermistorsLight-dependent resistors, and investigating resistanceCurrent and potential difference in series and parallelConstructing circuits, and calculating in series circuitsDirect and alternating potential difference, and mains electricityPower and efficiencyAppliances, and the energy transferred by electrical workPower, and the power ratings of domestic appliancesThe National GridStatic chargeElectric fields
Energy
Forces
Topic overviewScalars, vectors, forces and the resultant forceGravityWork done and energy transferStretching, compressing, and the spring constantLinear and non-linear extension, and work done on a springMoments, levers and gearsPressure at a surface, and the equation p = F over AAtmospheric pressureDistance, displacement and speedThe speed of sound, and the distance-speed-time equationVelocity and the distance-time relationshipAcceleration, deceleration and velocity-time graphsArea under a velocity-time graph, and the uniform acceleration equationNewton's First LawNewton's Second and Third LawsStopping distance and reaction timeFactors affecting braking distanceBraking force, deceleration and the dangers of stopping quickly
Magnetism and Electromagnetism
Particle Model of Matter
Space Physics
Waves
Topic overviewTransverse and longitudinal waves, and the wave equationWave properties, and refraction at a boundaryReflection of wavesTypes and uses of electromagnetic wavesRadio waves, and the hazards of ultraviolet, X-rays and gamma raysLensesVisible lightEmission and absorption of infrared radiation, and black bodies
Waves
Lenses
- 3 things to know
- Paper 2
Overview
How lenses form images, convex lenses bringing parallel rays to the principal focus and the focal length, concave lenses spreading rays out, real and virtual images, the magnifying glass, rays through the centre of a lens, magnification from image and object height with calculations and matching units, and ray diagram symbols for both lenses.
What you need to know
Answer each one before you reveal it.
Your recallNot started
Key term
What two kinds of image can be produced by a convex lens?
Key term
What kind of image is always produced by a concave lens?
Questions from this subtopic
Each one with the model answer underneath.
- 1
How does a lens form an image?
Model answer
By refracting the light that passes through it.
- 2
What happens to rays of light that arrive at a convex lens parallel to its axis?
Model answer
They are brought together at the principal focus.
- 3
What is the focal length of a lens?
Model answer
The distance from the lens to its principal focus.
- 4
What happens to parallel rays of light that pass through a concave lens?
Model answer
They are spread apart, so that they appear to come from a point on the same side as the incoming light.
- 5
What two kinds of image can be produced by a convex lens?
Model answer
A real image or a virtual image.
- 6
What kind of image is always produced by a concave lens?
Model answer
A virtual image.
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