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Tutor HuntTest QuestionsPhysics QuestionsYear 10 Physics Questions

 

Changes In Energy (GCSE Physics)

The following is a GCSE Physics test covering 'Changes In Energy' from the broader topic Energy. The test is geared towards the AQA exam board style syllabus.
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Below a typical questions that will be covered in this test. You final score will be logged on your account

A device takes 1000 J in and delivers 700 J of useful energy. What is its efficiency?
What is the specific latent heat of fusion?
Which equation gives the electrical energy transferred E when a charge Q moves through a potential difference V?
A 0.50 kg block of metal is heated and its temperature rises by 20 °C. If c = 420 J/kg°C, how much energy is required?
Which formula links power (P), potential difference (V) and current (I) in an electrical circuit?
A tile generates 40 V and a power output of 4.4 W when stepped on. What current flows through the tile?
A wind farm has a mean power output of 696 MW supplying 580 000 homes. What is the mean power available per home?
Which energy transfer occurs inside an incandescent lamp (filament) when it is switched on?
Which change will reduce wasted energy in a steam power plant and increase its overall efficiency?
What is meant by the conservation of energy principle?
Which formula gives the energy stored in a stretched spring with spring constant k and extension x?