1 of 91 of 9 Items

Question

Question
Which type of wave can carry energy through a vacuum? (1 point)
Responses

seismic
seismic

electromagnetic
electromagnetic

sound
sound

mechanical
mechanical
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2 of 92 of 9 Items
Question
On a sunny day, would someone feel cooler wearing a white shirt rather than a black shirt? (1 point)
Responses

light would be mostly reflected
light would be mostly reflected

light would be mostly absorbed
light would be mostly absorbed

light would mostly be trasmitted
light would mostly be trasmitted
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3 of 93 of 9 Items
Question
What do all waves have in common?(1 point)
Responses

they can shake structures
they can shake structures

they can move through space
they can move through space

they carry and transfer energy
they carry and transfer energy

they need a medium to travel in
they need a medium to travel in
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4 of 94 of 9 Items
Question
An explosion takes place in space. Which types of waves from the explosion can be observed on Earth?(1 point)
Responses

both light and sound waves
both light and sound waves

sound waves
sound waves

neither light nor sound waves
neither light nor sound waves

light waves
light waves
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Answer 1

5 of 95 of 9 Items
Question
Which of the following is an example of a mechanical wave? (1 point)
Responses

radio wave
radio wave

light wave
light wave

sound wave
sound wave

microwave
microwave
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6 of 96 of 9 Items
Question
How does the frequency of a wave affect its energy? (1 point)
Responses

Higher frequency waves have more energy.
Higher frequency waves have more energy.

Higher frequency waves have less energy.
Higher frequency waves have less energy.

Frequency does not affect the energy of a wave.
Frequency does not affect the energy of a wave.

Lower frequency waves have more energy.
Lower frequency waves have more energy.
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7 of 97 of 9 Items
Question
How does the amplitude of a wave affect its energy? (1 point)
Responses

Higher amplitude waves have more energy.
Higher amplitude waves have more energy.

Amplitude does not affect the energy of a wave.
Amplitude does not affect the energy of a wave.

Lower amplitude waves have more energy.
Lower amplitude waves have more energy.

Higher amplitude waves have less energy.
Higher amplitude waves have less energy.
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8 of 98 of 9 Items
Question
A wave with a frequency of 15 Hz has a wavelength of 20 meters. What is the speed of the wave? (1 point)
Responses

0.75 m/s
0.75 m/s

300 m/s
300 m/s

5 m/s
5 m/s

20 m/s
20 m/s
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9 of 99 of 9 Items
Question
Which type of wave can travel through a vacuum? (1 point)
Responses

mechanical
mechanical

sound
sound

electromagnetic
electromagnetic

seismic
seismic