AnswersPARTA - EOP PGCPS BIOGEOCHEM CR FALL2026 - 798113Wave Properties

Wave Properties Answers

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1
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Which statement describes the reason for the change in the velocity of waves as temperature decreases?

A
The particles of the medium move faster and there are fewer chances to transfer energy.
B
The particles of the medium move faster and there are more chances to transfer energy.
C
The particles of the medium move more slowly and there are more chances to transfer energy.
D
The particles of the medium move more slowly and there are fewer chances to transfer energy.
2
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Which statement describes the energy that a longitudinal wave carries as its amplitude decreases?

A
It increases and is perpendicular to the motion of the wave.
B
It decreases and is perpendicular to the motion of the wave.
C
It increases and is parallel to the motion of the wave.
D
It decreases and is parallel to the motion of the wave.
3

Rafael models a longitudinal wave using a coiled-spring toy. If he wants to model a longitudinal wave that carries more energy, how should he move the end of the spring?

A
side to side, using larger motions
B
side to side, using smaller motions
C
forward and back along the spring, using larger motions
D
forward and back along the spring, using smaller motions
4

Which is one factor that increases the speed of a sound wave?

A
higher temperature
B
lower temperature
C
traveling in a liquid rather than a solid
D
traveling in a gas rather than a liquid
5

The diagram shows two waves.

Question illustration
A
Wave A has a lower frequency because it has a smaller amplitude.
B
Wave A has a higher frequency because it has a shorter wavelength.
C
The waves have the same frequency because they have the same wavelength.
D
The waves have the same frequency because they have the same amplitude.
6

A wave has a frequency of 23.0 Hz and a wavelength of 14.9 m. What is the velocity of the wave?

A
1.54 m/s
B
8.1 m/s
C
37.9 m/s
D
343 m/s
7

Which change in the medium will likely cause the speed of light waves to decrease?

A
moving from a solid to a gas
B
moving from a liquid to a gas
C
moving from a gas to a liquid
D
moving from a solid to a liquid
8

The diagram shows part of a longitudinal wave.

Question illustration
A
They would be farther apart.
B
They would be closer together.
C
They would be shaped like a hill.
D
They would be shaped like a valley.
9

The diagram shows two waves.

Question illustration
A
Wave A has a higher frequency because it has a larger amplitude.
B
Wave A has a lower frequency because it has a longer wavelength.
C
The waves have the same frequency because they have the same wavelength.
D
The waves have the same frequency because they have the same amplitude.
10

Which relates the wavelength and frequency of a wave?

A
The frequency is the number of wavelengths that pass a fixed point in a second.
B
A wavelength is the distance on a wave between one frequency and the next.
C
The time it takes for one wavelength to pass a fixed point is the frequency.
D
The speed at which a wavelength travels is the frequency of the wave.

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