AnswersFL-2003310-Physical ScienceUnit Test

Unit 5: Test Answers

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21
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What is common between transverse waves and longitudinal waves?

A
Both include an amplitude, crest, and rarefactions
B
Both move faster at higher temperatures
C
Both move slower through densely packed molecules
D
Both include a wavelength from compression to compression
22
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A 2-column table with 4 rows. The first column labeled wave has entries W, X, Y, Z. The second column labeled Observations has entries its motion is perpendicular to wave motion, its particles move up and down, its particles only move small amounts, its motion is parallel to wave motion.

Question illustration
A
Waves W and Y are transverse waves, Wave X could be a longitudinal or transverse wave, and Wave Z is a longitudinal wave.
B
Waves W and Y are longitudinal waves, Wave X could be a longitudinal or transverse wave, and Wave Z is a transverse wave.
C
Waves W and X are longitudinal waves, Wave Y could be a longitudinal or transverse wave, and Wave Z is a transverse wave.
D
Waves W and X are transverse waves, Wave Y could be a longitudinal or transverse wave, and Wave Z is a longitudinal wave.
23

Which waves can travel through space?

A
electromagnetic waves only
B
mechanical waves only
C
electromagnetic and mechanical waves
D
longitudinal and electromagnetic waves
24

Which conditions produce low pitches from a guitar string?

A
short strings, more tension, thick strings
B
long strings, less tension, thick strings
C
short strings, less tension, thin strings
D
long strings, more tension, thin strings
25

The lens in the eyepiece of a reflecting telescope breaks. How will this most affect the function of the telescope?

A
Magnified images will appear upside down.
B
Magnified images will not be created.
C
Light from distant objects will not be captured.
D
Light rays will not be sent to the eyepiece.
26

Which situation would result in interference?

A
a wave bouncing off an object
B
a wave bending as it moves through an object
C
a wave scattering as it moves through an object
D
a wave increasing in energy as it hits another wave
27

Which do sound waves travel fastest through?

A
solids
B
gases
C
mixtures
D
liquids
28

Which best describes what happens if two waves meet and build on each other?

A
constructive interference
B
destructive interference
C
reflection
D
absorption

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