Heat Transfer Study Guide

Front

What is heat transfer?

Back

Heat transfer is the movement of thermal energy from one object or substance to another due to a temperature difference.

Front

What are the three main types of heat transfer?

Back

The three main types of heat transfer are conduction, convection, and radiation.

Front

Define conduction.

Back

Conduction is the transfer of heat through direct contact between materials.

Front

Define convection.

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases) caused by differences in temperature and density.

Front

Define radiation.

Back

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

Front

How does heat transfer occur in a microwave?

Back

Heat transfer in a microwave occurs through radiation, as microwaves heat food by exciting water molecules.

Front

What happens to heat when you open a window on a hot day?

Back

Heat transfers from outside to the classroom, making the inside warmer.

Front

What is an example of convection in everyday life?

Back

An example of convection is a lava lamp, where heated wax rises and cooler wax sinks.

Front

When you put an ice cube in hot chocolate, which way does heat transfer?

Back

Heat transfers from the hot chocolate to the ice cube, causing the ice to melt.

Front

What happens to a hot coffee cup in a cold room?

Back

Heat transfers from the hot coffee cup to the colder room, cooling the coffee.