AnswersSpanish I - WL9603 BAt Home Part 2

At Home Part 2 — Unit test Answers

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Atomic bombs send out a shock wave when they are detonated. This occurs because the bomb’s detonation superheats the air particles nearby, which cause them to bump into other air particles that further the wave.Which statement can most likely be made about the shock waves of atomic bombs?

A
They are mechanical waves.
B
They are electromagnetic waves.
C
They will act like x-rays.
D
They will act like light rays.
2
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What do diffraction and refraction have in common?

A
They both involve interference.
B
They both involve wave interactions.
C
They both involve reflection.
D
They both involve construction.
3

What is occurring when two waves traveling along the same medium meet and cancel each other out?

A
destructive interference
B
constructive interference
C
reflection
D
refraction
4

If humans cannot see ultraviolet waves, how can ultraviolet light be used to gather evidence of a crime?

A
Ultraviolet light detects the presence of radioactive substances.
B
Ultraviolet light shows cold areas as blue and warm areas as red.
C
Ultraviolet light causes substances to fluoresce and give off visible light.
D
Ultraviolet light transmits information to AM and FM radio receivers.
5

Which statement best describes how waves carry energy?

A
Energy moves from one place to another through the wave.
B
Energy increases as it moves through the wave.
C
Energy is completely consumed by the beginning of the wave.
D
Energy builds through the wave and is released at the end.
6

After the 1600s, how did observations of light being refracted change the way most scientists thought about light?

A
They no longer believed that light acted as waves.
B
They began to believe that light acted as waves.
C
They no longer believed that light acted as particles.
D
They began to believe that light acted as particles.
7

Which refers to the number of wavelengths that pass a fixed point in a second?

A
wavelength
B
amplitude
C
frequency
D
compression
8

Henri draws a wave that has a 4 cm distance between the midpoint and the trough. Geri draws a wave that has an 8 cm vertical distance from the trough to the crest.Which statement best describes the energy in Henri and Geri’s waves?

A
Henri’s wave has a higher amplitude and more energy.
B
Henri’s wave and Geri’s wave have the same amplitude and the same energy.
C
Henri’s wave and Geri’s wave have the same amplitude, but Geri’s has more energy.
D
Geri’s wave has a higher amplitude and more energy.
9

Which part of the electromagnetic spectrum is necessary for the sense of sight in humans?

A
radio waves
B
gamma rays
C
infrared light
D
visible light
10

Green plants need light in order to survive. Structures in the leaves absorb light, which in turn, helps plants make their own food.Under which color of light will plants be least likely to make food?

A
red
B
blue
C
orange
D
green
11

On top a coiled spring labeled Wave A with coils, which are widely spaced then tightly spaced then widely space. On bottom a coiled spring labeled Wave B with coils, which are widely spaced then very tightly spaced then widely space.

Question illustration
A
Wave A has a lower amplitude than Wave B.
B
Wave A has a higher amplitude than Wave B.
C
Wave A has a lower frequency than Wave B.
D
Wave A has a higher frequency than Wave B.
12

Which best describes how wave intensity and loudness are typically related?

A
Increased intensity means decreased loudness.
B
Increased intensity means increased loudness.
C
Intensity is related to wave amplitude, not loudness.
D
Intensity is related to wave speed, not loudness.
13

Sound Wave A is moving through a medium that is decreasing in temperature.Sound Wave B is moving from a liquid to a gas medium.

A
They will speed up.
B
They will increase the density of their medium.
C
They will slow down.
D
They will decrease the density of their medium.
14

Adam observed properties of four different waves and recorded observations about the frequency and volume of each one in his chart.

Question illustration
A
Only the sound quality of waves Y and Z can be compared.
B
The sound quality of all of the waves can be compared.
C
The sound quality of waves W and X can be compared.
D
The sound quality for these waves cannot be compared.
15

A museum sets up a display of fluorescent minerals. Which best describes how electromagnetic waves can be used to enhance the display?

A
Infrared light shining on the minerals will cause them to give off visible light.
B
Visible light shining on the minerals will cause them to give off infrared light.
C
Ultraviolet light shining on the minerals will cause them to give off visible light.
D
Visible light shining on the minerals will cause them to give off ultraviolet light.
16

When sound is created, it travels to the ear through a

A
compression.
B
medium.
C
rarefaction.
D
surface.
17

Which part of the electromagnetic spectrum has the longest wavelengths?

A
radio waves
B
gamma rays
C
infrared light
D
ultraviolet light
18

What will occur when the trough of Wave A overlaps the crest of Wave B?

A
Destructive interference will occur, causing the new wave to have more energy than Wave A or Wave B.
B
Constructive interference will occur, causing the new wave to have more energy than Wave A or Wave B.
C
Destructive interference will occur, causing the new wave to have less energy than Wave A or Wave B.
D
Constructive interference will occur, causing the new wave to have less energy than Wave A or Wave B.
19

Changes in which property are heard when the Doppler effect occurs?

A
pitch
B
amplitude
C
volume
D
wavelength
20

Sound waves are produced when something is caused to

A
reflect.
B
vibrate.
C
slow down.
D
get warmer.

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