Waves and Sound

Sound waves travel as ________ waves.

• Transverse

• Longitudinal

• Surface

A back-and-forth motion causing particles to move close together generates a ________.

• Rarefaction

• Surface wave

• Compression

Tags

NGSS.MS-PS4-1

A rarefaction is generated when particles move

• Together

• Under

• Apart

The elasticity of a substance describes how fast or slow its particles bounce back-and-forth as ________ move through object.

• Vibrations

• Chemicals

• Electrons

The amount of energy a sound wave carries per second through a unit of area is its

• Pitch

• Intensity

• Loudness

Tags

NGSS.MS-PS4-1

Loudness of waves is measured in

• Hertz

• Decibels

• Watts

Tags

NGSS.MS-PS4-1

What means number of waves per second?

• wavelength
• reflection
• diffraction
• frequency

Tags

NGSS.HS-PS4-1

Sound waves move faster than light waves.

• True
• False

The bouncing back of a light ray after hitting a surface is known as...

• diffraction
• refraction
• rebounding
• reflection

Tags

NGSS.MS-PS4-2

The bending of light is called refraction.

• True
• False

Tags

NGSS.MS-PS4-2