3) Review for sound - waves, intensity, pitch PPMS

Sound moves in __________.

• longitudinal waves.
• transverse waves.
• electromagnetic waves.

Tags

NGSS.MS-PS4-1

All __________ waves need a medium to carry energy.

• transverse
• mechanical
• electromagnetic

Tags

NGSS.MS-PS4-2

Sound waves cannot travel in outer space, because they are ____________.

• transverse waves
• mechanical waves
• electromagnetic waves

What causes sound waves?

• gravitational potential energy
• anything that moves
• anything that vibrates

What kind of wave is shown in this image?

• transverse wave
• electromagnetic wave
• longitudinal wave

Tags

NGSS.MS-PS4-1

How many complete waves are shown in this image?

• two
• four
• none

Tags

NGSS.MS-PS4-1

You can determine the amount of energy in a sound wave by measuring ________________.

• the number of particles in the wave.
• the frequency of the wave.
• the amplitude of the wave.

Tags

NGSS.MS-PS4-1

The __________ is the unit used to measure how much energy is in a sound wave.

• decibel (dB)
• Hertz (Hz)
• liter (L)

Tags

NGSS.MS-PS4-2

Sound waves with less energy __________.

• have a higher pitch.
• are louder.
• are softer.
• have a lower pitch.

The number of complete waves that pass each second is called

• pitch.
• amplitude.
• frequency.