Unit 5 Energy, Waves, and Heat Transfer

Front

What is energy?

Back

Energy is the ability to do work or cause change. It exists in various forms, such as kinetic, potential, thermal, and more.

Front

What are waves?

Back

Waves are disturbances that transfer energy from one place to another without transferring matter.

Front

What is wavelength?

Back

Wavelength is the distance between two consecutive peaks or troughs in a wave. It determines the type of wave and its energy.

Front

Which type of wave has the longest wavelength?

Back

Radio waves have the longest wavelength and the lowest frequency.

Front

What is the electromagnetic spectrum?

Back

The electromagnetic spectrum is the range of all types of electromagnetic radiation, from radio waves to gamma rays.

Front

What is convection?

Back

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

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials, where heat moves from the hotter object to the cooler one.

Front

What is radiation?

Back

Radiation is the transfer of energy through electromagnetic waves, which can occur in a vacuum, such as sunlight reaching Earth.

Front

What is visible light?

Back

Visible light is the part of the electromagnetic spectrum that can be seen by the human eye, consisting of various colors.

Front

What is the speed of light?

Back

The speed of light in a vacuum is approximately 299,792 kilometers per second (or about 186,282 miles per second).