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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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A tile generates 40 V and a power output of 4.4 W when stepped on. What current flows through the tile?
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?
Which change will reduce wasted energy in a steam power plant and increase its overall efficiency?
A spring with k = 200 N/m is stretched by 0.10 m. What elastic potential energy is stored?
Why do well-insulated homes reduce overall energy consumption?
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)?
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 equation links energy (E), power (P) and time (t)?
What is meant by the conservation of energy principle?
Which of these is a renewable energy source?
Which equation links energy transferred (E), mass (m), specific heat capacity (c) and temperature change (?T)?