EduNinja

EduNinja

1. Physical quantities and units

1.1 Physical quantities

1.3 Errors and uncertainties

1.4 Scalars and vectors

2. Kinematics

2.1 Equations of motion

3. Dynamics

3.1 Momentum and Newton’s laws of motion

3.2 Non-uniform motion

3.3 Linear momentum and its conservation

4. Forces, density and pressure

4.1 Turning effects of forces

4.2 Equilibrium of forces

4.3 Density and pressure

5. Work, energy and power

5.1 Energy conservation

5.1.1—The concept of work, and recall and use work done = force × displacement in

5.1.2—The principle of conservation of energy

5.1.3—That the efficiency of a system is the ratio of useful energy output

5.1.4—The concept of efficiency to solve problems

5.1.5—Power as work done per unit time

5.1.6—P = W / t

5.1.7—P = Fv and use it to solve problems

5.2 Gravitational potential energy and kinetic energy

6. Deformation of solids

6.1 Stress and strain

6.2 Elastic and plastic behaviour

7. Waves

7.1 Progressive waves

7.2 Transverse and longitudinal waves

7.3 Doppler effect for sound waves

7.4 Electromagnetic spectrum

7.5 Polarisation

8. Superposition

8.1 Stationary waves

8.2 Diffraction

8.3 Interference

8.4 The diffraction grating

9. Electricity

9.1 Electric current

9.2 Potential difference and power

9.3 Resistance and resistivity

10. D.C. circuits

10.1 Practical circuits

10.2 Kirchhoff’s laws

10.3 Potential dividers

11. Particle physics

11.1 Atoms, nuclei and radiation

11.2 Fundamental particles

Practical assessment skills

Paper 3 Advanced Practical Skills

Mathematical, data, formula and circuit-symbol skills

Mathematical requirements

Key quantities, symbols and units

Supplied data and formulae

Circuit symbols

A-Level CAIE Physics AS 5.1.5—Power as work done per unit time Question Bank

5.1.5—Power as work done per unit time

• define power as work done per unit time

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