vibration and waves review

Vibration and Waves Review

Ch 25-26

A longitudinal wave is:

A wave

where th

e partic..

A wave

where th

e parti...

50%50%1. A wave where the particle oscillation is perpendicular to the direction of wave motion

2. A wave where the particle oscillation is parallel to the direction of wave motion

How many nodes and antinodes?

4, 5 5, 8 5, 4 4, 8

25% 25%25%25%

1. 4, 52. 5, 83. 5, 44. 4, 8

Which of the following sources of sound has the shortest

wavelength?

A female so

prano singer...

A bass gu

itar a

t 150 Hz

A male voice

at 500 Hz

The rumble of th

under a...

0% 0%0%0%

1. A female soprano singer at 2,000 Hz

2. A bass guitar at 150 Hz3. A male voice at 500 Hz4. The rumble of thunder at 75

Hz

When waves interference constructively to produce a pattern of light and dark regions they are

Out of p

hase

In phase

Standing w

aves

Cancellin

g one another

0% 0%0%0%

1. Out of phase2. In phase3. Standing waves4. Cancelling one another

When a distant object approaches you, such as a galaxy in outer

space, you will observe

The Dopp

ler ef

...

Blue shift

Red sh

ift

Both 1 & 2

Both 1 & 3

20% 20% 20%20%20%1. The Doppler effect2. Blue shift3. Red shift4. Both 1 & 25. Both 1 & 3

Leader Board

Two successive crests of a transverse wave are 1.20 m apart. Eight crests

pass a given point every 12.0 s. What is the wave speed?

0.66

7 m/s

1.80

m/s

0.80

0 m/s

9.60

m/s

0% 0%0%0%

1. 0.667 m/s2. 1.80 m/s3. 0.800 m/s4. 9.60 m/s

The period of a pendulum may be decreased by

Shortening its

...

Incre

asing t

he...

Movin

g its

equ...

Incre

asing i

ts...

0% 0%0%0%

1. Shortening its length2. Increasing the mass of the

bob3. Moving its equilibrium point4. Increasing its length

If the pendulum completes exactly 12 cycles in 2.0 minutes, what is the frequency of the pendulum?

0.10

Hz

0. 17

Hz

6.0 H

z 10

Hz

0% 0%0%0%

1. 0.10 Hz2. 0. 17 Hz3. 6.0 Hz4. 10 Hz

The period of this wave is…

2 se

conds

4 se

conds

6 se

conds

0% 0%0%

1. 2 seconds2. 4 seconds3. 6 seconds

The amplitude of this wave is…

4.8 m

eters

4.0 m

eters

2.4 m

eters

0% 0%0%

1. 4.8 meters2. 4.0 meters3. 2.4 meters

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A wave with an amplitude of 0.75 m has the same wavelength as a second wave with an

amplitude of 0.53 m. The two waves interfere. What is the amplitude of the

resultant wave if the interference is constructive?

0.22

m

0.53

m

0.75

m

1.28

m

0% 0%0%0%

1. 0.22 m2. 0.53 m3. 0.75 m4. 1.28 m

A total of 5 s passes as a child completes one complete swing on a playground swing. The period of

the swing is

1/5 s 20

s 5 s

1 s

0% 0%0%0%

1. 1/5 s2. 20 s3. 5 s4. 1 s

The frequency of a certain pendulum is 0.5 Hz. The period of

this pendulum is

0.2 s

0.5 s 2

s 5

s

0% 0%0%0%

1. 0.2 s2. 0.5 s3. 2 s4. 5 s

Which of the following factors has the greatest effect on the frequency

of a swinging pendulum?

Frictio

n

Amplitude

Mas

s

Length

0% 0%0%0%

1. Friction 2. Amplitude3. Mass4. Length

If a given pendulum is moved from Earth to a location where the gravitational

acceleration is greater than Earth’s, the frequency of the pendulum’s swing will

Increa

se

Decreas

e

Be u

nchanged

Vary with

the m

ass o

...

0% 0%0%0%

1. Increase 2. Decrease 3. Be unchanged4. Vary with the mass of the

bob

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The material through which a mechanical wave travels is

A m

edium

Empty sp

ace

Wate

r A

ir

0% 0%0%0%

1. A medium2. Empty space3. Water 4. Air

Response GridResponse Grid

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The human voice has been shown to be capable of shattering a glass.

This is possible due to…

Resonance

Doppler Effect

Interfe

rence

Harmonics

Timbre

0% 0% 0%0%0%

1. Resonance2. Doppler Effect3. Interference4. Harmonics5. Timbre


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When a transverse wave passes through water, water molecules are

displaced

Perman

ently

in th

e di...

Perman

ently

in a

dire...

Temporar

ily in

the d

ir...

Temporar

ily in

a dire

c...

0% 0%0%0%

1. Permanently in the direction of the wave motion

2. Permanently in a direction perpendicular to the wave

3. Temporarily in the direction of the wave motion

4. Temporarily in a direction perpendicular to the wave


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You are traveling in a car near by a moving train. The train sounds its whistle, but you fail to hear the Doppler effect. This may be

because…

You are travelin

g away ...

You are travelin

g toward

...

You are travelin

g at the...

You are travelin

g away ...

You are travelin

g toward

...

0% 0% 0%0%0%

1. You are traveling away from the train too fast to detect it

2. You are traveling towards the train too fast to detect it

3. You are traveling at the same speed as the train

4. You are traveling away from the train too slowly to detect it

5. You are traveling towards the train to slowly to detect it


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The distance between two troughs of a transverse wave is the wave’s

Amplitu

de

Wav

eleng

th

Frequen

cy

Rare

factio

n

0% 0%0%0%

1. Amplitude 2. Wavelength3. Frequency4. Rarefaction


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Suppose you are dangling your foot in a swimming pool, making ripples (waves) by moving your foot

up and down. What could you do to make the ripples travel faster through the water?

Move

your f

oot up a.

.

Move

your f

oot up a..

Move

your f

oot up an...

None of th

e abo

ve

0% 0%0%0%

1. Move your foot up and down more frequently

2. Move your foot up and down less frequently

3. Move your foot up and down more strongly

4. None of the aboveResponse GridResponse Grid

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A wave is passing through a uniform medium. As the frequency of this wave increases, its wavelength

Dep

ends o

n amplitu

de

Decrea

ses

Increa

ses

Does not

chang

e

0% 0%0%0%

1. Depends on amplitude 2. Decreases3. Increases4. Does not change


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A ____ wave travels through a medium as a series of

compressions and rarefactions.

Sine

Longitudinal

Pulse

Transv

erse

0% 0%0%0%

1. Sine 2. Longitudinal3. Pulse4. Transverse


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When two transverse waves traveling through a medium meet and exactly coincide, the resulting

displacement of the medium

Is th

e sum of th

e dis.

..

Is ze

ro

Is al

ways g

reater

than

...

Is al

ways d

estru

ctive

0% 0%0%0%

1. Is the sum of the displacements of each wave

2. Is zero3. Is always greater than the

displacement of either wave alone

4. Is always destructiveResponse GridResponse Grid

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When two waves having displacements in opposite

directions meet, ____ occurs.

Complete d

estr.

..

No inter

feren

c...

Constr

uctive

i...

Des

tructiv

e in...

0% 0%0%0%

1. Complete destructive interference2. No interference3. Constructive interference4. Destructive interference


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A wave pattern on a stretched string appears to be stationary.

This wave pattern is an example of

A lo

ngitu

dinal

wave

A non-peri

odic wav

e

A pulse w

ave

A st

anding w

ave

0% 0%0%0%

1. A longitudinal wave 2. A non-periodic wave3. A pulse wave4. A standing wave


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In a standing wave on a vibrating string, a point that appears to

remain stationary is a(n)

Antin

ode

Point of c

onstructi

ve ...

Node

raref

actio

n

0% 0%0%0%

1. Antinode 2. Point of constructive

interference3. Node4. rarefaction


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An ocean wave has a frequency of 2 Hz and a speed of 20 m/s. What

is the wavelength of this wave?

0.1 m 5

m 10

m 40

m

0% 0%0%0%

1. 0.1 m2. 5 m3. 10 m4. 40 m


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Two waves meet and interfere constructively. Which one of the

following factors increases?

Period

Frequen

cy

Amplitude

Wav

eleng

th

0% 0%0%0%

1. Period 2. Frequency3. Amplitude4. Wavelength


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You sit in the audience and listen to a concert band play. Which

instruments sound reaches your ears first, the flute or the trombone?

The flute

The tro

mbone

They re

ach yo

ur ears

..

0% 0%0%

1. The flute2. The trombone3. They reach your ears at the

same time. Response GridResponse Grid

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A string is rigidly attached to a post at one end. Several pulses of amplitude 0.15 m sent down the

string are reflected at the post and travel back down the string without a loss of amplitude. What is the amplitude at a point on the string where the

maximum displacement points of two pulses cross? What type of interference is this?

0.30

m; c

onstr..

.

0.30

m; d

estru

...

0.00

m; c

onstr.

..

0.00

m; d

estru

...

0% 0%0%0%

1. 0.30 m; constructive2. 0.30 m; destructive3. 0.00 m; constructive4. 0.00 m; destructive


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A string is attached to a post loosely and free to move. Several pulses of amplitude 0.15 m sent

down the string are reflected at the post and travel back down the string without a loss of amplitude.

What is the amplitude at a point on the string where the maximum displacement points of two pulses cross? What type of interference is this?

0.30

m; c

onstru

ctive

0.30

m; d

estru

ctive

0.00

m; c

onstru

ctive

0.00

m; d

estru

ctive

0% 0%0%0%

1. 0.30 m; constructive2. 0.30 m; destructive3. 0.00 m; constructive4. 0.00 m; destructive


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What type of wave is a sound wave?

Mech

anical a

nd Transverse

Mech

anical a

nd Longitu

...

Electr

omagnetic a

nd Tr...

Electr

omagnetic a

nd Lon...

0% 0%0%0%

1. Mechanical and Transverse

2. Mechanical and Longitudinal

3. Electromagnetic and Transverse

4. Electromagnetic and Longitudinal


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The main factor that determines the speed of a sound wave is…

The amplitude

The frequency

The intensit

y

The properti

es...

The wave

length

0% 0% 0%0%0%

1. The amplitude2. The frequency3. The intensity4. The properties of

the medium5. The wavelength


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Which of the following factors determines the pitch of a sound?

Amplitude

Intensit

y

Frequency

Phase Sp

eed

0% 0% 0%0%0%

1. Amplitude2. Intensity3. Frequency4. Phase5. Speed


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While driving, you hear a police car siren approaching from behind. If the siren

produces a 1500 Hz sound, you will hear a sound…

Greater t

han 1...

Less

than 1500...

Equal

to 1500 ...

You will

not b...

0% 0%0%0%

1. Greater than 1500 Hz

2. Less than 1500 Hz3. Equal to 1500 Hz4. You will not be able

to hear this sound Response GridResponse Grid

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At room temperature, sound will travel most slowly through which of

the following?

Iron

Water

Aluminum

Mercu

ry

Helium

0% 0% 0%0%0%

1. Iron2. Water3. Aluminum4. Mercury5. Helium


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An observer waits for an approaching train. The train blows its whistle approaches the station at a constant speed. The frequency

of sound detected by the observer compared to the original whistle will be…

higher lo

wer

Incre

asingly

h...

Incre

asingly

l...

0% 0%0%0%

1. higher2. lower3. Increasingly higher4. Increasingly lower


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