Waves

Question 1

Diagram I shows a glass tube containing undisturbed air molecules. Diagram II shows the same glass tube when a wave passes through it. Which type of wave produced the disturbance shown in Diagram II?

Answer 1

longitudnal

Question 2

A _____ wave travels through a medium as a series of compressions and rarefactions.

Answer 2

longitudnal

Question 3

If you want to increase the wavelength of the waves in a rope, should you shake it at a higher frequency or at a lower frequency?

Answer 3

lower frequency

Question 4

A wave that is produced by a single motion that does not repeat is a _____ wave.

Answer 4

pulse

Question 5

A wave pattern on a stretched string appears to be stationary. This wave pattern is an example of a

Answer 5

standing wave

Question 6

A sound wave is an example of a(n) _____ wave.

Answer 6

longitudnal

Question 7

A represents the wave’s

Answer 7

rarefaction

Question 8

B represents the wave’s

Answer 8

compression

Question 9

C represents the wave’s

Answer 9

wavelength

Question 10

The amplitude of a mechanical wave determines how much _____ the wave transfers per unit time.

Answer 10

energy or work

Question 11

speed

Answer 11

v

Question 12

frequency

Answer 12

f

Question 13

period

Answer 13

T

Question 14

The material through which a mechanical wave travels is

Answer 14

medium

Question 15

Does the medium in which a wave travels move along with the wave itself?

Answer 15

no

Question 16

what are the two basic types of waves?

Answer 16

Transverse and longitudnal

Question 17

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

Answer 17

decreases

Question 18

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

Answer 18

wavelength

Question 19

Which of the following usually transmits energy without transferring matter?

Answer 19

wave

Question 20

A type of wave that vibrates in a direction perpendicular to the direction of wave motion.

Answer 20

transverse

Question 21

A type of wave that vibrates in a direction parallel to the direction of wave motion.

Answer 21

longitudnal

Question 22

Refer to the diagram below. Between which, two points is the wave frequency the highest?

Answer 22

point 2 and 3

Question 23

waves may bend around a barrier

Answer 23

diffraction

Question 24

the apparent change of pitch due to movement of the source or observer

Answer 24

doppler shift

Question 25

waves that return to their medium after hitting a surface

Answer 25

reflection

Question 26

waves that pass through a medium bend due to a change in speed

Answer 26

refraction

Question 27

waves in the same space at the same time

Answer 27

superposition

Question 28

the combination of two or more electromagnetic wave forms to form a resultant wave in which the displacement is either reinforced or canceled

Answer 28

interference

Question 29

In a standing wave on a vibrating string, a point that appears to remain stationary is a(n)

Answer 29

node

Question 30

When two waves having equal amplitudes, but displacements in opposite directions meet, _____ occurs.

Answer 30

destructive interference

Question 31

Two waves meet and interfere constructively. Which one of the following factors increases?

Answer 31

amplitude

Question 32

The diagram above represents two pulse waves moving toward each other through a medium with equal, but opposite amplitudes. The two waves will exactly coincide (pass through each other) when they reach point A. At point A, the amplitude of the combined waves will be

Answer 32

zero

Question 33

Which of the following characteristics of waves (energy) makes them fundamentally different than particles (matter)?

Answer 33

superposition

Question 34

The diagram above represents a certain standing wave on a vibrating string. This standing wave has

Answer 34

4 nodes 3 antidotes

Question 35

A small vibrating object on the surface of a ripple tank is the source of waves of frequency 20 Hz and speed 60 cm/s. If the source S is moving to the right (as shown above), with speed 20 m/s, at which of the labeled points will the frequency measured by a stationary observer be greatest?

Answer 35

C

Question 36

Diffraction of waves occurs when a wave encounters or responds to which of the following? I. obstacle II. opening III. sharp edge IV. another wave of equal wavelength

Answer 36

I, II, III

Question 37

A represents the

Answer 37

incident wave

Question 38

B represents the

Answer 38

reflected wave

Question 39

C represents the

Answer 39

refracted wave

Question 40

A wave refracts when it enters a new medium and changes direction. Why does this happen?

Answer 40

the speed changes

Question 41

When two transverse waves traveling through a medium meet and exactly coincide (pass through each other), the resulting displacement of the medium

Answer 41

Is the sum of the displacements of each wave