Sound Energy

What is a sound wave? A sound wave is a ______ wave that is caused by vibrations. It travels through a ______.

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NGSS.MS-PS4-1

NGSS.MS-PS4-2

Which of the following statements is true about sound waves?

• Sound waves are longitudinal waves.

• Sound waves do not require a medium to travel.

• Sound waves are caused by light.

• Sound waves are transverse waves.

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NGSS.MS-PS4-1

NGSS.MS-PS4-2

The speed of sound depends on which factors?

• Temperature and pressure

• Color and texture

• Weight and height

• Shape and size

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NGSS.MS-PS4-1

NGSS.MS-PS4-2

Which medium has the highest speed of sound according to the table?

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NGSS.MS-PS4-2

The speed of sound is affected by temperature because:

• higher temperatures increase the speed of sound

• higher temperatures decrease the speed of sound

• temperature has no effect on the speed of sound

• sound travels slower in warmer air

Pitch depends on the ________.

• frequency

• amplitude

• wavelength

• intensity

High frequency sounds are ______ pitched and low frequency sounds are ______ pitched.

• high; low

• low; high

• medium; medium

• low; low

Tags

NGSS.MS-PS4-1

The unit for frequency of a sound wave is _______.

• Hertz (Hz)

• Newton (N)

• Pascal (Pa)

• Joule (J)

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NGSS.MS-PS4-1

What are sounds with frequencies lower than 20 Hz called?

• Sonic

• Infrasonic

• Ultrasonic

• Hypersonic

What are sounds with frequencies higher than 20,000 Hz called?

• Sonic

• Infrasonic

• Ultrasonic

• Hypersonic

Tags

NGSS.MS-PS4-1