Sound Waves Physical Science

True or False: Sound waves are faster than light.

• False

• True

The number of wavelengths that pass a fixed point each second is known as ----

• Hertz

• Amplitude

• Frequency

The unit for measuring frequency is the ---

• Joule

• Hertz

• Gram

• Newton

Tags

NGSS.HS-PS4-1

The Tacoma Narrows Bridge, musical instruments, and crystal stemware are examples of -----

• Frequency

• Resonance

• Interference

• Speed

Tags

NGSS.HS-PS4-1

Sound waves that are beyond the range of human ear are known as ----

• Infrasonic waves

• Ultrasonic waves

Which of the following is the main factor that affects the speed of a wave?

• the pitch of sound

• the loudness of sound

• the amplitude of sound

• the properties of the medium the sound travels through

What is the wavelength of a 264-Hz sound wave when the speed of sound is 345 m/s ? (v = λ⋅f)

• 0.77m

• 1.31m

• 6.09m

• 9.11m

Tags

NGSS.HS-PS4-1

When sound travels through the air, the sound wave moves in the same direction that it displaces particles. Sound is a ___ wave.

• electromagnetic

• longitudinal

• transverse

• surface

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

• pitch

• intensity

• loudness

• frequency

Loudness of waves is measured in ______________.

• hertz

• decibels

• watts

• meters/second