Edexcel IGCSE Physics 4.4 Efficiency Equation Topic Practice

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Pearson Edexcel International GCSE Physics

1 Forces and motion

(b) Movement and position

(c) Forces, movement, shape and momentum

(b) Mains electricity

(c) Energy and voltage in circuits

(d) Electric charge

(b) Properties of waves

(c) The electromagnetic spectrum

(d) Light and sound

4 Energy resources and energy transfers

(b) Energy transfers

4.2 Energy stores and transfers

4.3 Conservation of energy

4.4 Efficiency equation

4.5 Energy transfer devices

4.6 Thermal energy transfer

4.8 Radiation emission and absorption

4.9 Thermal transfer practical

4.10 Reducing unwanted energy transfer

(c) Work and power

(d) Energy resources and electricity generation

5 Solids, liquids and gases

(b) Density and pressure

(c) Change of state

(d) Ideal gas molecules

6 Magnetism and electromagnetism

(c) Electromagnetism

(d) Electromagnetic induction

7 Radioactivity and particles

(b) Radioactivity

(c) Fission and fusion

(b) Motion in the universe

(c) Stellar evolution

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