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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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Which expression is the definition of efficiency?
Which equation gives the change in gravitational potential energy when an object of mass m is raised by height h in a gravitational field g?
Which equation links energy (E), power (P) and time (t)?
Which formula links power (P), potential difference (V) and current (I) in an electrical circuit?
Why does adding lubrication (oil) to moving parts of a wind turbine usually increase its efficiency?
A 500 W heater runs for 2 hours. How much energy, in joules, does it supply?
A 60 kg person climbs stairs of height 1.75 m in 1.40 s. (g = 9.8 N/kg). What is their mechanical power output (rounded)?
Which energy transfer occurs inside an incandescent lamp (filament) when it is switched on?
Which equation links energy transferred (E), mass (m), specific heat capacity (c) and temperature change (?T)?
Which of these is a renewable energy source?
Why do well-insulated homes reduce overall energy consumption?