Chapter 15 WavesReview Activity

Question 1

What is a wave?

Answer 1

•A disturbance that transmits energy through matter or space

Question 2

1. What is a medium?

2. Name the 3 types.

Answer 2

1. the matter through which a wave travels

2. Air, Water, Earth (Seismic)

Question 3

What are the two main types of waves?

Think Carefully

Answer 3

Mechanical and Electromagnetic

Question 4

How are mechanical waves different from electromagnetic waves?

Answer 4

Mechanical waves require a medium.

Electromagnetic waves do not require a medium, but can use them sometimes.

Question 5

1. Name two types of mechanical waves.

2. Name one type of electromagnetic wave.

Answer 5

1.Sound, water, and seismic waves

2.Light waves

Question 6

•Describe how particles move in a transverse waves and in a longitudinal wave.

Answer 6

Transverse waves-particles move up and down

Longitudinal waves-particles move back and forth.

Question 7

• Label all the following parts of a wave.

B

AC

d

e

f

Answer 7

A. Equilibrium position ( resting position)

B. Crest

C. Amplitiude

D. Trough

E. Rarefaction

F. Compression

Question 8

•What is the frequency of microwaves that have a wavelength of 5 m and are moving at 1.25 x 105 m/s?

Answer 8

25000 Hz or 2.5 x 104 Hz

f= v/����

f= 1.25 x 105 m/s /5 m

Question 9

One wave passing a point in 1 second would have a frequency of _____.

Answer 9

1 Hz

f= 1/t

Question 10

How do particles move in a surface wave?

Answer 10

•Particles move in a circle

Question 11

Below are three mediums. Arrange them from slowest to fastest in energy movement.

A B C

Answer 11

B A C

A B C

Question12

A certain FM radio station broadcasts electromagnetic waves at a frequency of 95000 Hz. These radio waves travel at a speed of 3.00 x 108 m/s. What is the wavelength of these radio waves?

Answer 12

3159 m

���� = v/f

���� = 3.00 x 108 m/s /95000 Hz

Question 13

Arrange the following from lowest to highest frequency.

radio waves

microwaves

infrared waves

visible light

ultraviolet light

X-rays

gamma rays

Answer 14

radio waves, microwaves, infrared waves, visible light, ultraviolet light, X-rays, and gamma rays

Question 15

What is shown in the image below?

Answer 15

The Doppler effect

Question 16

Draw a picture for the following wave properties.

Reflection Refraction Diffraction

Answer 16

Question 17

What is being illustrated below?

Answer 17

Constructive Interference

Question 18

The animation below is showing standing waves.

1. What are the points of no vibration called? 2.What are the points of maximum vibration called?

Answer 18

Answer 19

What does the pitch of a wave determine about a wave?

Question 19

Pitch determines frequency

Question 20

•What produces beats, which we hear in music?

Answer 20

Interference of sound waves