Ride the Wave - Assessment

1.

Multiple Choice

1 min

1 pt

The diagram above represents two identical pulses approaching each other in a uniform medium.

As the pulses meet and are superposed, the maximum displacement of the medium is

- 6 cm

0 cm

6 cm

3 cm

2.

Multiple Choice

1 min

1 pt

Two speakers, S₁ and S₂, operating in phase in the same medium produce the circular wave patterns shown in the diagram above

At which two points is constructive interference occurring?

A and B

A and D

B and C

B and D

3.

Multiple Choice

1 min

1 pt

The diagram above shows two pulses of equal amplitude, A, approaching point P along a uniform string.

When the two pulses meet at P, the vertical displacement of the string at P will be

A

2A

0

A/2

4.

Multiple Choice

1 min

1 pt

The diagram above shows two pulses approaching each other from opposite directions in the same medium. Pulse A has an amplitude of 0.20 meter and pulse B has an amplitude of 0.10 meter.

After the pulses have passed through each other, what will be the amplitude of each of the two pulses?

A = 0.10 m; B = 0.20 m

A = 0.20 m; B = 0.10 m

A = 0.30 m; B = 0.30 m

A = 0.15 m; B = 0.15 m

5.

Multiple Choice

1 min

1 pt

The diagram above represents a periodic wave.

Which point on the wave is 90° out of phase with point P?

A

B

C

D

6.

Multiple Choice

1 min

1 pt

The diagram above represents wave movement.

Which two points are in phase?

A and G

B and F

C and E

D and F

7.

Multiple Choice

1 min

1 pt

Two waves having the same amplitude and frequency are traveling in the same medium. Maximum destructive interference will occur when the phase difference between the waves is

0°

90°

180°

270°

8.

Multiple Choice

1 min

1 pt

The diagram above represents a standing wave produced in a string by a vibrating wave generator.

How many antinodes are shown in this standing wave?

6

2

3

4

9.

Multiple Choice

1 min

1 pt

While playing, two children create a standing wave in a rope, as shown in the diagram above. A third child participates by jumping the rope.

What is the wavelength of this standing wave?

2.15 m

4.30 m

6.45 m

8.60 m

10.

Multiple Choice

1 min

1 pt

wo waves traveling in the same medium and having the same wavelength interfere to create a standing wave. What is the distance between two consecutive nodes on this standing wave?

11.

Multiple Choice

1 min

1 pt

In order for standing waves to form in a medium, two waves must

have the same frequency

have different amplitudes

have different wavelengths

travel in the same direction

12.

Multiple Choice

1 min

1 pt

When air is blown across the top of an open water bottle, air molecules in the bottle vibrate at a particular frequency and sound is produced. This phenomenon is called

diffraction

refraction

resonance

the Doppler effect

13.

Multiple Choice

1 min

1 pt

Resonance occurs when one vibrating object transfers energy to a second object causing it to vibrate. The energy transfer is most efficient when, compared to the first object, the second object has the same natural

frequency

loudness

amplitude

speed

14.

Multiple Choice

2 mins

1 pt

A 512-hertz sound wave travels 100. meters to an observer through air at STP. What is the wavelength of this sound wave?

0.195 m

0.646 m

1.55 m

5.12 m

15.

Multiple Choice

1 min

1 pt

A light wave travels from one medium into a second medium with a greater absolute index of refraction. Which characteristic of the wave can not change as the wave enters the second medium?

frequency

speed

direction

wavelength

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