A pedestrian hear the siren of an ambulance. The ambulance driver hears the siren as 1000 Hz. The pedestrian hears the siren as 1150 Hz. What can be inferred from this scenario?

The ambulance is moving toward the pedestrian.

The ambulance is moving away from the pedestrian.

There is not enough information to infer.

An oceanographic vessel is using sonar to map the ocean floor. In one segment of data, the time between the sonar system sending a sound wave and receiving the echo shortened. What does this data indicate? How do you know?

The ocean floor is more shallow because the distance the sound traveled decreased.

The ocean floor is more shallow because the distance the sound traveled increased.

The ocean floor is deeper because the distance the sound traveled decreased.

What happens to a wave when it passes between two media?

bends toward the medium that causes slower speed

bends away from the medium that causes lower frequency

When a sound wave pulse travels down a pipe with both ends open, it may be reflected once it reaches the far end. If this occurs, the pulse will change phase: a compression pulse reflects as the rarefaction pulse, and the rarefration pulse will be reflected as a compression pulse. Suppose the pipe is exactly one wavelength long. If a wave train is sent down the pipe and is reflected, what will be heard when it returns to the start of the pipe? Why?

Nothing will be heard; the original and reflected wave trains will interfere destructively.

The sound will be twice as loud; the wave trains will interfere constructively.

The sound will be twice as loud; the waves trains will interfere constructively.

What is the relationship between sound intensity and distance?

intensity is inversely proportional to the square of distance

Intensity is inversely proportional to the square of distance

Intensity is directly proportional to the square of the distance.

Why can an echo not be heard if the source of the sound is less than 17 m from the reflecting surface?

The sounds are too close in time to be distinguished.

The sound will be reflected away from the source.

The sound waves cancel each other

Movies and television shows often include sounds from rocket engines being heard in the vacuum of space. Why is this incorrect?

Sound cannot travel through a vacuum.

The sound is too low-frequency to be heard.

There are no microphones in space.

M&E Test 5

Authored by Emily Heavener

Science

9th - 12th Grade

NGSS covered

Used 2+ times

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53 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

the period of a wave

T=1/f

f=N/t

T=1/N

Tags

NGSS.MS-PS4-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The speed of sound

Tags

NGSS.MS-PS4-2

NGSS.MS-PS4-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The frequency of a wave

f=N/t

T=1/f

T=1/N

Tags

NGSS.HS-PS4-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The speed of a wave

T=1/N

f=N/t

Tags

NGSS.HS-PS4-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

High point of a wave train

crest

frequency

amplitude

Tags

NGSS.MS-PS4-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

number of waves that pass a point per unit time

frequency

amplitude

intensity

Tags

NGSS.HS-PS4-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

maximum distance particles that pass a point per unit time

amplitude

intensity

normal

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M&E Test 5

the period of a wave

The speed of sound

The frequency of a wave

The speed of a wave

High point of a wave train

number of waves that pass a point per unit time

maximum distance particles that pass a point per unit time

strength of a sound wave

perpendicular line from which reflection is measured

musical distance between two notes

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