Chapter 7 Test

Mechanical waves are created when a source of energy causes a medium to

• move.
• compress.
• expand.
• vibrate.

Waves that move the particles of the medium parallel to the direction in which the waves are traveling are called

• longitudinal waves.
• transverse waves.
• surface waves.
• combination waves.

The distance between two corresponding parts of a wave is the wave's

• amplitude.
• wavelength.
• frequency.
• speed.

The speed of a wave is its wavelength multiplied by its

• amplitude.
• vibration.
• frequency.
• reflection.

The maximum distance that the particles of a medium move from the rest position is the

• amplitude of the wave.
• wavelength of the wave.
• frequency of the wave.
• speed of the wave.

Tags

NGSS.MS-PS4-1

Electromagnetic waves can transfer energy without a(n)

• medium.
• electric field.
• magnetic field.
• change in either a magnetic or an electric field.

Tags

NGSS.HS-PS4-3

Mechanical waves are classified according to

• their size.
• their shape.
• how they move.
• their source.

Why do you see lightning from a distant storm before you hear thunder?

• The thunder is produced after the lightning.
• Your eyes react faster than your ears.
• Light travels faster than sound.
• Sound travels faster than light.

The more _________________ a mechanical wave has, the greater its amplitude.

Tags

NGSS.MS-PS4-1

In the phenomenon known as the _________________________ effect, electric current will flow when light shines on certain substances.

Tags

NGSS.HS-PS4-3