Waves Unit Review

Front

What is electromagnetic radiation?

Back

Electromagnetic radiation is a form of energy that travels through space at the speed of light and does not require a medium to propagate. It includes radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays.

Front

Why can television satellites send signals from the vacuum of space?

Back

Because electromagnetic radiation does not need a medium to travel through.

Front

What happens during absorption of a wave?

Back

Absorption occurs when the energy of a wave is taken in by the medium, rather than being transmitted or reflected.

Front

What is the least energy level in a wave?

Back

The least energy level in a wave is the point where the wave has the lowest amplitude.

Front

How can sound waves travel faster through solids than through air?

Back

Sound waves travel faster through solids because the particles in solids are closer together, allowing the energy to transfer more quickly.

Front

What does it mean for a wave to be transmitted?

Back

Transmission refers to the passing of a wave through a medium without being absorbed or reflected.

Front

What is the difference between loudness and amplitude in sound waves?

Back

Loudness is the perception of sound intensity, while amplitude is the physical measurement of the height of the wave; greater amplitude results in louder sounds.

Front

What is refraction?

Back

Refraction is the bending of waves as they pass from one medium to another due to a change in speed.

Front

What is the relationship between frequency and pitch in sound?

Back

Higher frequency sound waves produce higher pitch sounds, while lower frequency waves produce lower pitch sounds.

Front

What is the Doppler effect?

Back

The Doppler effect is the change in frequency or wavelength of a wave in relation to an observer moving relative to the wave source.