sound properties 2024

What is sound?

• noises that can travel in the vacuum of space

• Vibrations of matter that your ears can sense

• A transverse wave

• what always happens when energy is moved

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

The measure of how high or low a sound is:

• the intensity

• the size of the wavelength

• how loud or soft a sound is

• the pitch

List the order of mediums through which sound travels from fastest to slowest.

• Liquid, Gas, Solid

• Gas, Solid, Liquid

• Solid, Liquid, Gas

• Solid, Gas, Liquid

Frequency is measured in ____

• meters

• hertz

• decibels

• seconds

Another word for volume is ________, and it is measured in ___________

• Frequency, decibels

• Amplitude, hertz

• Amplitude, decibels

• Frequency, hertz

What is the doppler effect?

• a change in the frequency of sound, caused by a moving object

• A change in pitch that causes frequency, sound, light and other waves to disappear

• a change in the ampllitude of sound, caused by a moving object

• A change in sound that alters frequency

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

when a noise is moving towards an observer, the closer it comes...

• the lower the pitch

• the longer the noise

• the higher the pitch

• the quieter the noise

Why does sound travel faster in solids than in liquids or gases.

• They are harder.

• The particles are closer together.

• Solids have more energy.

• Gases fill their container.

Tags

NGSS.MS-PS4-2

2. An echo occurs when a sound wave is __________.

• A. absorbed

• B. reflected

• C. refracted

• D. transmitted

Tags

NGSS.MS-PS4-2

The speed of sound in water is about 1500m/s. What is the wavelength of a wave that has a frequency of 150 Hz?

• 10 m

• 225,000m

• 0.1 m

• 1650 m

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2