ELL Test Heat Transfer

Front

What is heat transfer?

Back

The movement of thermal energy from one object or substance to another due to a temperature difference.

Front

What are the three main methods of heat transfer?

Back

Conduction, convection, and radiation.

Front

Define conduction.

Back

The transfer of heat through direct contact between materials.

Front

Define convection.

Back

The transfer of heat by the movement of fluids (liquids or gases) due to differences in density.

Front

Define radiation.

Back

The transfer of heat in the form of electromagnetic waves, such as infrared radiation.

Front

What is the role of a vacuum in a thermos?

Back

To reduce heat transfer by conduction, convection, and radiation.

Front

Why is wood a better handle material for frying pans than metal?

Back

Wood does not conduct heat well, making it safer to touch.

Front

How does a metal spoon get cold when placed in ice cream?

Back

Through conduction, as heat transfers from the spoon to the cold ice cream.

Front

What happens when you touch a hot stove?

Back

You experience a burn due to heat transfer by conduction.

Front

True or False: Radiation, conduction, and convection are three ways that heat is transferred.

Back

True.