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Physics (Cambridge)

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Physical quantities and units

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Physical quantities
SI units
Errors and uncertainties
Scalars and vectors

Kinematics

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Equations of motion

Dynamics

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Momentum and Newton’s laws of motion
Non-uniform motion
Linear momentum and its conservation

Forces, density and pressure

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Turning effects of forces
Equilibrium of forces
Density and pressure

Work, energy and power

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Energy conservation
Gravitational potential energy and kinetic energy

Deformation of solids

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Stress and strain
Elastic and plastic behaviour

Waves

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Progressive waves
Transverse and longitudinal waves
Doppler effect for sound waves
Electromagnetic spectrum
Polarisation

Superposition

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Stationary waves
Diffraction
Interference
The diffraction grating

Electricity

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Electric current
Potential difference and power
Resistance and resistivity

D.C. circuits

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Practical circuits
Kirchhoff’s laws
Potential dividers

Particle physics

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Atoms, nuclei and radiation
Fundamental particles

Motion in a circle

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Kinematics of uniform circular motion
Centripetal acceleration

Gravitational fields

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Gravitational field
Gravitational force between point masses
Gravitational field of a point mass
Gravitational potential

Temperature

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Thermal equilibrium
Temperature scales
Specific heat capacity and specific latent heat

Ideal gases

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The mole
Equation of state
Kinetic theory of gases

Thermodynamics

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Internal energy
The first law of thermodynamics

Oscillations

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Simple harmonic oscillations
Energy in simple harmonic motion
Damped and forced oscillations, resonance

Electric fields

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Electric fields and field lines
Uniform electric fields
Electric force between point charges
Electric field of a point charge
Electric potential

Capacitance

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Capacitors and capacitance
Energy stored in a capacitor
Discharging a capacitor

Magnetic fields

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Concept of a magnetic field
Force on a current-carrying conductor
Force on a moving charge
Magnetic fields due to currents
Electromagnetic induction

Alternating currents

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Characteristics of alternating currents
Rectification and smoothing

Quantum physics

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Energy and momentum of a photon
Photoelectric effect
Wave-particle duality
Energy levels in atoms and line spectra

Nuclear physics

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Mass defect and nuclear binding energy
Radioactive decay

Medical physics

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Production and use of ultrasound
Production and use of X-rays
PET scanning

Astronomy and cosmology

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Standard candles
Stellar radii
Hubble’s law and the Big Bang theory

Multiple Choice Structured Questions

Specimen · 9702/01 · 2022 · Q311 marks · sit it in its paper

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CIE-9702-2022-SP-p01 · Question 31

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Question 31, including diagrams and options A–D. Text version below.

31 Which values of current and resistance will produce a rate of energy transfer of 16 J s–1?

current / A resistance / (cid:58)

A 1 4

B 2 2

C 2 8

D 4 1

[1 mark]

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