Energy Exam Questions
Questions on energy stores and transfers, kinetic energy, gravitational potential energy, elastic potential energy, specific heat capacity, power, efficiency, and national/global energy resources. Download free past paper questions organised by topic with mark schemes.
Frequently Asked Questions
What are the energy stores GCSE Physics?
Eight energy stores: kinetic, gravitational potential, elastic potential, thermal, chemical, nuclear, electrostatic, and magnetic. Energy is transferred between stores but the total remains constant (conservation of energy).
How do you calculate kinetic energy GCSE?
KE = ½mv² where m = mass (kg) and v = velocity (m/s). Units: Joules (J). Remember to square the velocity - this is a common mistake!
How do you calculate gravitational potential energy?
GPE = mgh where m = mass (kg), g = gravitational field strength (10 N/kg on Earth), h = height (m). Units: Joules (J).
What is specific heat capacity GCSE?
The energy needed to raise 1 kg of a substance by 1°C. Formula: E = mcΔθ where E = energy (J), m = mass (kg), c = specific heat capacity (J/kg°C), Δθ = temperature change (°C).
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