What is internal energy and what are its two components?
Internal energy (also known as 'thermal energy') is the total energy stored by the particles in a substance or system. It includes the kinetic energy stores and potential energy stores of particles.
(You don't need to know what the 'potential energy stores' are - just that they are part of the definition of internal energy)
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What is specific heat capacity (in words)?
Specific heat capacity is the amount of energy required to raise the temperature of 1 kg of a substance by 1 °C.
It can also be thought of as the amount energy released as 1kg of a substance cools by 1 °C.
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What is the formula that uses specific heat capacity to find an energy change?
ΔE = m c ΔT
you may also see it written as:
ΔE = m c Δ𝛳
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Will an object with a higher specific heat capacity require more or less energy to raise its temperature?
An object with a higher specific heat capacity will require more energy to raise its temperature.
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