Chapter 9 Heat

Definition of Heat

• A form of energy which flow from hot area to cold area

• Joule

• Celcius (⁰C) and Kelvin (^oK)

• The degree of hotness or coldness of an object

Unit of measurement of Temperature

• A form of energy which flow from hot area to cold area

• Joule

• Celcius (⁰C) and Kelvin (^oK)

• The degree of hotness or coldness of an object

A _______ is a substance that opposes the conduction of heat

• heat insulator

• heat conductor

A _______ is a substance that can conduct heat

• heat insulator

• heat conductor

Conduction is the process of heat transfer from hotter regions to colder regions through ____

Examples of heat conductor

• metal spoon

• copper wire

• wooden bowl

• liquid mercury

• rubber band

The ability of an object to absorb or radiate heat depends on...... of its surface

• type

• colour

• temperature

• heat

Warming of the Earth by the Sun using the heat flow concept called...

• conduction

• convection

• radiation

Heat is measured in Celsius (℃) and Kelvin (K) unit.

• True

• False

the measurement of the degree of hotness or coldness of an object.

• Temperature

• Heat