6. Sound is a disturbance that travels through a medium as

both mechanical and electromagnetic waves

7. Light is a disturbance that travels through a medium as

both mechanical and electromagnetic waves

9. The reason you see lightning from a storm sooner than you hear thunder is

light waves travel faster than sound waves.

sound waves travels faster than light waves.

light waves travel faster than heat waves.

light waves travel faster than ocean waves.

12. Rainbows are visible because

white light is refracted by the raindrops

White light is reflected off of raindrops

the visible light spectrum has seven colors

the amplitude of each color varies

13. Which statement is most correct?

each color in the spectrum refract at a different angle. Violet refracts the most and red refracts the least.

When white light enters a water droplet, the light bends at different rates. Red bends the most and violet bends the least

The compressions and rarefactions of white light causes it to reflect into different colors

Only seven of the colors of the visible spectrum are absorbed by the raindrops. Other colors such as pink and brown are not absorbed

14. Colors of the rainbow are part of the Visible Spectrum. Which of the statement below lists waves in the EM spectrum in increasing wavelength frequency (low frequency to high frequency)?

Radio waves, microwaves, infrared, visible light, ultraviolet, x-rays, gamma rays

Gamma rays, x-rays, ultraviolet, visible light, infrared, microwaves, radio waves.

Radio waves, microwaves, ultraviolet, infrared, visible light, x-rays, gamma rays

19. Astronauts in on the moon would not hear the engines of a lunar lander because____

there are no air molecules on the moon to carry sound

it is too cold on the moon for sound waves to travel

the moon has no magnetic field to carry sound

the lunar soil deadens the sound waves

21. Which is the best explanation for the refracting of light?

As light passes from one substance to another it changes speeds causing the light to bend.

Shiny surfaces such a mirror allow light to bounce back at you.

Particle matter in the air interfere with the transmission of light causing it to scatter.

White light is absorbed by an apple and only the red color waves are reflected.

The model shown above is how light interacts with two different objects. They are the same materials but different colors. Which of the following statements best explains what will happen to the objects?

The black object is hotter than the white object because the white object reflects more light than the black object does.

The white object is cooler than the black object because the white object reflects more light than the black object does.

The black object is cooler than the white object because the black object absorbs more light than the white object.

The white object is cooler than the black object because the white object absorbs more light than the black object does.

27. Which of the following statements are true of DIGITAL signals? Choose all that apply.

digital signals are wave pulses

digital signals have only two values that they can send, on or off

digital signals are a more reliable way to encode and transmit information than analog signals

digital signals are very susceptible to interference (noise)

digital signals are continuously streaming data

29. Why are digital signals much more resistant to interference than analog signals?

digital signals have only two values that they can send; either on or off and there is no in-between

digital signals can be communicated across very long distances

digital signals are a modern invention

This image models what happens to white light as it enters and exits a prism. Choose the statement that best describes what is happening.

Each color in the visible light spectrum refracts at a different angle. Violet refracts the most and red refracts the least.

When white light enters a prism, the light bends at different rates. Red bends the most and violet bends the least

Only seven of the colors of the visible spectrum are absorbed by the prism. Other colors such as pink and brown are not absorbed

The white light is transmitted through the prism showing the colors of the rainbow.

Why are bananas yellow? (select ALL that apply)

they absorb red, orange, green, blue and purple

they absorb white light and reflect yellow light

they refract yellow light more than the other colors

WAVES Unit Review

Authored by Tracy Dieges

Science

6th - 8th Grade

NGSS covered

Used 9+ times

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40 questions

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MULTIPLE CHOICE QUESTION

30 sec • 2 pts

2. What medium do seismic waves (earthquakes) travel through?

Outer space

Water

The air

The ground

Tags

NGSS.MS-PS4-2

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

3. What do waves carry from place to place?

Matter

Energy and matter

Energy

None of the above

Tags

NGSS.MS-PS4-1

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

Which letter represents a wavelength?

Tags

NGSS.MS-PS4-1

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

Which letter represents amplitude?

Tags

NGSS.MS-PS4-1

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

What is the amplitude of this wave?

Tags

NGSS.MS-PS4-1

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

What property does the orange arrow (A) represent?

crest

trough

middle

side

Tags

NGSS.MS-PS4-1

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

If a wave has a greater frequency, what happens to the number of waves per second?

Increases

Decreases

Stays the same

Tags

NGSS.HS-PS4-1

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WAVES Unit Review

2. What medium do seismic waves (earthquakes) travel through?

3. What do waves carry from place to place?

Which letter represents a wavelength?

Which letter represents amplitude?

What is the amplitude of this wave?

What property does the orange arrow (A) represent?

If a wave has a greater frequency, what happens to the number of waves per second?

If a wave has a greater frequency, what happens to the wavelength?

4. Frequency is measured in units called

5. Electromagnetic waves can transfer energy without

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