AQA Physics GCSE - Energy Changes in a System
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These flashcards cover essential equations and concepts related to energy changes in a system, including kinetic and potential energy, specific heat capacity, and power.
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What is the equation for kinetic energy and the SI units for its quantities?
Kinetic energy: ½ m v²; where Energy (J), Mass (kg), Velocity (m/s).
What is the equation for elastic potential energy and the SI units for its quantities?
Elastic potential energy: ½ k x²; where Energy (J), Spring Constant (N/m), Extension (m).
What is the equation for gravitational potential energy and the SI units for its quantities?
Gravitational potential energy: mgh; where Energy (J), Mass (kg), Gravitational Field Strength (N/kg), Height (m).
Define Specific Heat Capacity.
The amount of energy needed to raise the temperature of 1 kilogram of a substance by 1 degree Celsius.
What is the definition of Power in physics?
The rate at which energy is transferred (or the rate at which work is done).
Note 
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