Lab: Newton's Laws of Motion — Unit test Answers

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1
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Which best describes what happens if two waves meet and build on each other?

A
constructive interference
B
destructive interference
C
reflection
D
absorption
2
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Which statement best compares the speed of a sound wave moving through a pot of boiling water and the water vapor above the pot?

A
The sound wave would move faster through the water than through the water vapor.
B
The sound wave would move slower through the water than through the water vapor.
C
The sound wave would move the same speed through the water and the water vapor.
D
The sound wave would move through the water and water vapor at the same speed, but decrease in speed at the transition point.
3

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
4

The energy of microwaves is less than the energy of ultraviolet light. Which comparison of the energies of electromagnetic waves is correct?

A
Gamma rays have higher energy than microwaves because gamma rays have shorter wavelengths.
B
Gamma rays have higher energy than microwaves because gamma rays have lower frequencies.
C
Infrared light has lower energy than X-rays because infrared light has shorter wavelengths.
D
Infrared light has lower energy than X-rays because infrared light has higher frequencies.
5

As the temperature of a medium increases, the speed of the sound wave

A
increases because the particles bump into each other more often.
B
increases because the particles bump into each other less often.
C
decreases because the particles bump into each other more often.
D
decreases because the particles bump into each other less often.
6

The waves created by two speed boats in a lake interact to form larger waves. This is an example of

A
constructive interference.
B
destructive interference.
C
absorption
D
transmission
7

Which process would correctly calculate the frequency of a wave?

A
dividing speed by wavelength
B
dividing frequency by wavelength
C
multiplying frequency by period
D
dividing wavelength by period
8

Which do sound waves travel fastest through?

A
solids
B
gases
C
mixtures
D
liquids
9

Levi observed properties of three different waves and recorded observations about each one in his chart.

Question illustration
A
Wave W and Y are light waves. Wave X is a sound wave.
B
Wave W is a light wave.Waves X and Y are sound waves.
C
Waves Y is a sound wave. Waves X and W are light waves.
D
Wave W is a sound wave. Waves X and Y are light waves.
10

Which of these most directly affects what happens to white light when it hits an object?

A
the properties of the object
B
the source of the light
C
the speed at which the light travels
D
the distance of the object from the light
11

Yolanda is studying two waves. The first wave has an amplitude of 2 m, and the second has an amplitude of 3 m.

A
She can use destructive interference to generate a wave with an amplitude of 3.1 m.
B
She can use constructive interference to generate a wave with an amplitude of 1.5 m.
C
She can use destructive interference to generate a wave with an amplitude of 0 m.
D
She can use constructive interference to generate a wave with an amplitude of 3.5 m.
14

Ingrid says that a red ball of clay appears red because the clay reflects red wavelengths. Simon says that the clay appears red because it allows red wavelengths to pass through it.Which statement best explains who is correct?

A
Ingrid is correct. The clay appears red because it reflects red wavelengths.
B
Ingrid is correct. The clay appears red because it is a type of matter.
C
Simon is correct. The clay appears red because it allows red wavelengths to pass through it.
D
Simon is correct. The clay appears red because it is a solid.

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