# Physics Module 1 - Energy for the Home

A - Heating houses

B - Keeping homes warm

C - How insulation works

D - Cooking with waves

E - Infrared Signals

F - Wireless Signals

G - Light

H - Stable Earth

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## P1A - Heating Houses - Questions

What is the difference between heat and temperature?

What is specific heat capacity and its equation?

Does temperature change when there is a change of state?

What is specific latent heat and its equation?

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## P1A - Heating Houses - Answers

Temperature is a measure of how hot or cold something is on a scale, usually  measures in degree Celcius whereas heat is a meaure of energy on an absolute scale and measured in joules.

Specific Heat Capacity  is the amount of energy needed to change the temperature of an object depending on its mass, the material it is made from and the size of the temperature change. The specific heat capacity of a material is the amount of energy needed to raise the temperature of 1kg of material by 1 degrees celcius

energy (J) = mass (kg) x specific heat capacity (J/kg/ C) x temperature change ( C)

No because the energy is used to break attractions between particles in the state, breaking the intermolecular bonds.

Is measures in joules per kilogram (J/kg) and is the amount of energy needed to melt or boil 1kg of material.

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