HEAT ENERGY

The energy that makes things warm.

• light energy

• heat energy

• sound energy

• stored energy

Most of the energy we use on Earth originally came from . . . .

• the moon

• the equator

• the sun

• the earth

The sources of heat energy:

• friction of objects

• vibrating object

• burning fuels

• the sun

These electrical appliances produce heat energy:

• a radio

• a microwave

• an iron

• a fan

When fuels are burnt, the stored energy was changed into . . . .

• heat energy

• light energy

• sound energy

• movement energy

The picture shows you that a _____________ produces heat energy.

• geothermal

• movement

• sun

• friction

We can feel the temperature of an object by using . . . .

• sense of sight

• sense of smell

• sense of touch

• sense of sound

A thermometer measures temperature in . . . .

• Metre

• litre

• ⁰C

• cm²

To measure the temperature we need to use . . . .

• temperature

• thermometer

• decibel meter

• metre

If an object loses heat, its temperature . . . .

• increases

• decreases