Heat and Sound Energy

Produced when the particles of the substance move very fast

• sound

• heat

• friction

It comes from the remains of pre-historic plants and animals millions years ago

LPG, gasoline, diesel, kerosene are example of fossil fuel

• TRUE

• FALSE

Earth's internal heat used by geothermal plants to produce electricity

It occurs when oxygen combines with another substance

Effect of heat when the liquid and gasses expand when heated, contract when they are cooled

• Changes in size

• Changes in matter

• Changes in temperature

Physical state changes but chemical composition is the same when heated

• Changes in size

• Changes in temperature

• Changes in matter

Describe the hotness and coldness

The transfer of heat from particles of warm object to particles of another

Materials that do not absorb heat