S2 Heat Revision

In convection, heat rises.

_______ surfaces are poor at emitting infra-red radiation.

Why do both beakers reach the same temperature?

If an object gains heat the temperature will

Heat transfer occurs fastest when there is a

Radiators in our homes work by convection. Why does hot air rise?

Conduction is

Infra-red radiation is emitted by

Temperature is measured in

Warm objects release infrared radiation. What is the scientific word for this?

By which method does heat travel in a liquid or gas?

Which is less dense?

Materials that do not conduct heat well are called

Which objects are good conductors of heat?

How hot or cold an object is given by its ________

Infra-red radiation travels very fast and in

If an object loses heat the temperature will

_______ surfaces are good at emitting infra-red radiation.

Insulators work by

We feel heat from the sun because

Heat always travels from

All hot objects emit heat rays called _________ radiation.

A vacuum flask

Heat travels through solids by ___________

Conductors feel colder than insulators at the same temperature because

What heat transfer method does this depict?

Infra-red radiation travels slowly

If something needed to cool down quickly, which colour should it be painted?

_______ surfaces reflect infra-red radiation.