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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 spring with k = 200 N/m is stretched by 0.10 m. What elastic potential energy is stored?
An ice block of mass 0.25 kg melts when 50 000 J are transferred to it. What is the specific latent heat of fusion inferred from this experiment?
Why does adding lubrication (oil) to moving parts of a wind turbine usually increase its efficiency?
Why do well-insulated homes reduce overall energy consumption?
A tile generates 40 V and a power output of 4.4 W when stepped on. What current flows through the tile?
An LED has input power 4.0 W and efficiency 85%. What is its useful light power output?
Which equation links energy transferred (E), mass (m), specific heat capacity (c) and temperature change (?T)?
Which formula links power (P), potential difference (V) and current (I) in an electrical circuit?
A wind farm has a mean power output of 696 MW supplying 580 000 homes. What is the mean power available per home?
Which expression is the definition of efficiency?
A 2.0 kg mass is raised 5.0 m in g = 9.8 N/kg. What is the increase in its gravitational potential energy?