Physics Chapter 13: Waves

What is the term given to the number of cycles or vibrations per unit of time?

• frequency

• seconds

• period

• cycles

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NGSS.HS-PS4-1

What is the term given to the time it takes to complete a cycle of motion?

• frequency

• duration

• period

• cycles

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An amusement park ride swings back and fourth once every 40 seconds. What is the rides frequency?

• 25 Hz

• 0.25 Hz

• the answer cannot be determined from the information given

• 0.025 Hz

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NGSS.HS-PS4-1

What are properties and examples of transverse waves?

• they require a medium; like air, to travel

• they do not require a medium to travel

• light is an example of a transverse wave

• sound is an example of a transverse wave

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PARTS OF A WAVE: What is the name of the region of a longitudinal wave in which the density and pressure are greater than normal?

• rarefactions

• compressions

• crest

• densities

PARTS OF A WAVE: What is the name of the top and bottom regions of a transverse wave?

• top is the crest

• bottom is dip

• bottom is trough

• top is peak

A tuning fork with a frequency of 2300 Hz has a period of ____seconds.

• 0.043 s

• 0.0043 s

• 0.00043 s

• 0.000043 s

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NGSS.HS-PS4-1

As learned in your lab, waves are created by repeating motion, particularly by either plucking a string or blowing air through a tube. As a result we learned that the sound (longitudinal waves) were caused by ____.

• sound waves

• vibrations

As learned in your lab, you were tasked with making an instrument that played at least 8 distinct sounds, also called notes, what is another word for the notes heard?

• frequency

• tunes

• music

• hertz

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NGSS.HS-PS4-1

Transverse waves require a medium.

• true

• false

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