How is the amplitude measured in this type of wave?

Amount of compression, compression

What is the relationship between period and frequency?

Inverse; as one increases, the other decreases. T=1/f and f=1/T. Inverse: as one gets larger, the other gets smaller.

What is the relationship between wavelength and frequency?

Inverse; as one goes up, the other goes down. Since v = λf, if v is constant, as λ increases, f decreases and vice versa. Inverse; as one gets big, the other gets small.

Why does a sound wave travel faster through a solid than a gas? Why can't they travel in outer space (which is a vacuum) at all?

Because particles are closer together in a solid than in a gas, and sound has to travel through matter. It can't travel in outer space at all because there are no particles for it to travel through.

Why can't sound travel in outer space (which is a vacuum) at all? Options: Sound needs a medium to travel, no medium, needs medium, no matter.

Sound needs a medium to travel.

Which wave travels faster in a vacuum, light or sound?

Light, because it does not need a medium to travel through, whereas sound does.

Would you expect sound to travel faster in a solid, liquid, or gas?

Solid, because the particles are closer together, and sound must travel through matter since it is a mechanical wave.

In which of these would sound travel faster, an oven or a freezer?

In an oven, because it has a higher temperature. The particles have more kinetic energy and will be in contact with each other more, making it easier for sound waves to travel through them.

Do loud sounds travel faster than soft sounds? Why or why not? Options: Loudness is related to amplitude, not speed, so it wouldn't make a difference. No

Loudness is related to amplitude, not speed, so it wouldn't make a difference. No

Do electromagnetic waves need a medium to travel through? Explain why or why not.

No, because they transfer energy between electric and magnetic fields instead of particle to particle like mechanical waves do.

What is the speed of light in a vacuum? What happens to this speed as it enters a different medium? Options: 3.0 x 10^8 m/s, It slows down as it enters a different medium, 300,000,000 m/s, 3 x 10^8 m/s, 300000000 m/s, 300,000,000m/s, 3x10^8m/s, 3*10^8m/s, 3 * 10^8 m/s, 3*10^8 m/s, 3x10^8 m/s

3.0 x 10^8 m/s, It slows down as it enters a different medium.

Unit 4 Waves Flashcards

Student preview

49 questions

Show all answers

1.

FLASHCARD QUESTION

Front

What kind of wave is pictured? Options: transverse, longitudinal.

Back

Transverse.

Tags

SPS9.b

2.

FLASHCARD QUESTION

Front

What is letter B pointing to?

Back

Crest

Tags

SPS9.b

3.

FLASHCARD QUESTION

Front

What is the letter A pointing to?

Back

Trough

Tags

SPS9.b

4.

FLASHCARD QUESTION

Front

What is the letter C pointing to? Options: wavelength

Back

wavelength

Tags

SPS9.b

5.

FLASHCARD QUESTION

Front

What is amplitude a measure of?

Back

Energy

Tags

SPS9.b

SPS9.a

6.

FLASHCARD QUESTION

Front

How do you measure the amplitude of this type of wave?

Back

By measuring the height of the wave from the resting point to the crest.

Tags

SPS9.b

SPS9.a

7.

FLASHCARD QUESTION

Front

What kind of wave is pictured? Options: transverse, longitudinal.

Back

Longitudinal.

Tags

SPS9.b

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