Quiz about Unit 6 Review PS

Question 1

Which part of a wave represents the maximum displacement from the equilibrium position?

Accepted Answer

Amplitude

Answer

Trough

Answer

Wavelength

Answer

Crest

Question 2

In a longitudinal wave, the particles of the medium vibrate ________ to the wave's motion.

Accepted Answer

Parallel

Answer

Perpendicular

Answer

Transversely

Answer

Diagonally

Question 3

Which of the following is an example of a transverse wave?

Accepted Answer

Ripples on water's surface

Answer

Sound waves in air

Answer

Vibrations in a spring

Answer

Compression waves in a slinky

Question 4

The human perception of sound intensity is called:

Accepted Answer

Loudness

Answer

Frequency

Answer

Amplitude

Answer

Vibration

Question 5

Which type of wave does NOT require a medium to travel through?

Accepted Answer

Electromagnetic wave

Answer

Sound wave

Answer

Water wave

Answer

Seismic wave

Question 6

What is the unit for frequency?

Accepted Answer

Hz (Hertz)

Answer

m (meters)

Answer

s (seconds)

Answer

m/s (meters per second)

Question 7

Which of these electromagnetic waves has the longest wavelength?

Accepted Answer

Radio waves

Answer

Visible light

Answer

X-rays

Answer

Gamma rays

Question 8

The specialized cells in your eyes that allow you to distinguish colors are called:

Accepted Answer

Cones

Answer

Pods

Answer

Prisms

Answer

Lenses

Question 9

The specialized cells in your eyes that allow you to see in dim light are called:

Accepted Answer

Rods

Answer

Cones

Answer

Prisms

Answer

Lenses

Question 10

Which lens type would assist someone with far-sightedness?

Accepted Answer

Convex

Answer

Concave

Answer

Flat

Answer

Cylindrical

Question 11

In a standing wave, the points where the wave has zero amplitude are called:

Accepted Answer

Nodes

Answer

Crests

Answer

Troughs

Answer

Antinodes

Question 12

When a wave strikes a boundary and bends as it passes into a different medium, this phenomenon is called:

Accepted Answer

Refraction

Answer

Reflection

Answer

Diffraction

Answer

Interference

Question 13

When a wave bends around an obstacle or through a small opening, this phenomenon is called:

Accepted Answer

Diffraction

Answer

Reflection

Answer

Refraction

Answer

Absorption

Question 14

A pencil appearing to bend when placed in a glass of water is an example of:

Accepted Answer

Refraction

Answer

Reflection

Answer

Diffraction

Answer

Absorption

Question 15

When waves overlap and combine to create a wave with larger amplitude, this is called:

Accepted Answer

Constructive interference

Answer

Destructive interference

Answer

Resonance

Answer

Cancellation

Question 16

What color of visible light has the shortest wavelength?

Accepted Answer

Blue

Answer

Red

Answer

Green

Answer

Yellow

Question 17

Which of these is NOT an example of a standing wave?

Accepted Answer

Bow and arrow

Answer

Vibrating guitar string

Answer

Stretched rubber band

Answer

Sound waves in a speaker

Question 18

Waves that occur at the boundary between two different media are known as:

Accepted Answer

Surface waves

Answer

Longitudinal waves

Answer

Electromagnetic waves

Answer

Mechanical waves

Question 19

What happens to the wavelength of a sound wave as it approaches you?

Accepted Answer

It decreases

Answer

It increases

Answer

It remains the same

Answer

It first increases, then decreases

Question 20

The middle line of a wave where the displacement is zero is called:

Accepted Answer

The equilibrium position

Answer

The median line

Answer

The zero point

Answer

The rest state

Question 21

Simple Harmonic Motion is best described as:

Accepted Answer

A repetitive rhythmic motion

Answer

Random vibration

Answer

The movement of sound through air

Answer

The refraction of light waves

Question 22

If a sound wave has a period of 0.05 seconds, what is its frequency?

Accepted Answer

20 Hz

Answer

5 Hz

Answer

50 Hz

Answer

200 Hz

Question 23

If the speed of a wave is 340 m/s and its wavelength is 2 m, what is its frequency?

Accepted Answer

170 Hz

Answer

340 Hz

Answer

680 Hz

Answer

342 Hz

Question 24

In a standing wave, the points of maximum amplitude are called:

Accepted Answer

Antinodes

Answer

Nodes

Answer

Equilibrium points

Answer

Wave peaks

Question 25

What does sound travel fastest through?

Accepted Answer

Solids

Answer

Air

Answer

Water

Answer

Vacuum

Question 26

When a car with a siren passes you, the pitch sounds higher as it approaches and lower as it moves away. This is an example of:

Accepted Answer

The Doppler Effect

Answer

Wave reflection

Answer

Resonance

Answer

Diffraction

Question 27

If the wavelength of a wave increases while its speed remains constant, what happens to its frequency?

Accepted Answer

It decreases

Answer

It increases

Answer

It remains the same

Answer

It becomes zero

Question 28

Calculate the wave speed if the frequency is 5 Hz and the wavelength is 8 m.

Accepted Answer

40 m/s

Answer

13 m/s

Answer

1.6 m/s

Answer

0.625 m/s

Question 29

Calculate the wavelength if the wave speed is 42 m/s and the frequency is 6 Hz.

Accepted Answer

7 m

Answer

252 m

Answer

0.14 m

Answer

36 m

Question 30

Calculate the frequency if the wave speed is 330 m/s and the wavelength is 5 m.

Accepted Answer

66 Hz

Answer

1650 Hz

Answer

325 Hz

Answer

335 Hz

Question 31

Calculate the period if the frequency is 250 Hz.

Accepted Answer

0.004 s

Answer

0.25 s

Answer

4 s

Answer

250 s

Question 32

Calculate the wave speed if the period is 0.25 seconds and the wavelength is 15 m.

Accepted Answer

60 m/s

Answer

3.75 m/s

Answer

15.25 m/s

Answer

0.017 m/s

Question 33

If a wave has a frequency of 440 Hz and travels at 330 m/s, what is its wavelength?

Accepted Answer

0.75 m

Answer

145,200 m

Answer

770 m

Answer

1.33 m

Question 34

A water wave travels 24 meters in 8 seconds and has a wavelength of 3 meters. What is its frequency?

Accepted Answer

1 Hz

Answer

3 Hz

Answer

0.33 Hz

Answer

6 Hz

Question 35

If a wave has a period of 0.5 seconds and a wavelength of 1.5 meters, what is its speed?

Accepted Answer

3 m/s

Answer

0.75 m/s

Answer

2 m/s

Answer

0.33 m/s

Question 36

The wavelength of a sound wave is 2 meters. If sound travels at 340 m/s in air, what is the frequency of this sound?

Accepted Answer

170 Hz

Answer

680 Hz

Answer

338 Hz

Answer

342 Hz

Question 37

Destructive interference decreases the amplitude of a wave.

Accepted Answer

True

Answer

False

Question 38

The speed of sound is faster in solids than in gases.

Accepted Answer

True

Answer

False

Question 39

The frequency of a wave changes as it travels from one medium to another.

Accepted Answer

False

Answer

True

Question 40

All electromagnetic waves travel at the same speed in a vacuum.

Accepted Answer

True

Answer

False

Question 41

The wavelength of a wave is the distance between adjacent crests or adjacent troughs.

Accepted Answer

True

Answer

False

Question 42

The pitch of a sound increases as its frequency decreases.

Accepted Answer

False

Answer

True

Question 43

A yellow banana appears yellow because it absorbs all colors except yellow.

Accepted Answer

True

Answer

False

Question 44

The Doppler Effect explains why the pitch of a siren seems to change as it passes by.

Accepted Answer

True

Answer

False

Question 45

Wave speed is equal to frequency multiplied by wavelength.

Accepted Answer

True

Answer

False

Question 46

Simple Harmonic Motion is a repetitive rhythmic motion.

Accepted Answer

True

Answer

False

Question 47

Light waves can travel through a vacuum while sound waves cannot.

Accepted Answer

True

Answer

False

Question 48

Antinodes are points in a standing wave where there is maximum displacement. Nodes have zero displacement.

Accepted Answer

True

Answer

False

Question 49

The period of a wave is the inverse of its frequency (T = 1/f).

Accepted Answer

True

Answer

False

Question 50

Radio waves have lower frequency than gamma rays.

Accepted Answer

True

Answer

False

Unit 6 Review PS

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