Chapter 14

Question 1

Wave

Answer 1

A periodic disturbance in a solid, liquid, or gas as energy is transmitted through a medium.

Question 2

Medium

Answer 2

A physical environment in which phenomena occurs.

Question 3

Mechanical wave

Answer 3

A wave that requires a medium through which to travel.

Question 4

Electromagnetic wave

Answer 4

A wave that consist of oscillating electric and magnetic fields, which radiate outward at the speed of light.

Question 5

Transverse wave

Answer 5

A wave in which the particles of the medium move perpendicular to the direction the wave is traveling.

Question 6

Longitudinal wave

Answer 6

A wave in which the particles of the medium vibrate parallel to the direction of the wave motion.

Question 7

Crest

Answer 7

The highest point of a wave

Question 8

Trough

Answer 8

The lowest point on a wave

Question 9

Amplitude

Answer 9

The maximum distance that the particles of a wave medium vibrate from their rest position

Question 10

Wavelength

Answer 10

The distance from any point on a wave to an identical point on the next wave.

Question 11

Period

Answer 11

The time that it takes a complete cycle or wave oscillation to occur

Question 12

Frequency

Answer 12

The number of cycles or vibrations per unit of time.

Question 13

Reflection

Answer 13

The bouncing back of a ray of light, sound, or heat when the ray hits a surface that it does not go through.

Question 14

Diffraction

Answer 14

A change in the direction of a wave when the wave finds an obstacle or an edge, such as an opening.

Question 15

Refraction

Answer 15

The bending of a wavefront as the wavefront passes between two substances in which the speed of the wave differs

Question 16

Interference

Answer 16

The combination of two or more waves of the same frequency that results in a single wave

Question 17

Constructive interference

Answer 17

Any interference in which waves combine so that the resulting wave is bigger than the original waves

Question 18

Destructive interference

Answer 18

Any interference in which waves combine so that the resulting wave is smaller than the largest of the original waves

Question 19

Standing wave

Answer 19

A pattern of vibration that simulates a wave that is standing still

Question 20

What does a Water wave do ?

Answer 20

transport energy and water.

Question 21

what does the medium seismic waves travel through?

Answer 21

rocks and other materials inside Earth.

Question 22

Sound waves are?

Answer 22

longitudinal waves.

Question 23

A wave has a period of 0.25 seconds. The frequency of this wave is?

Answer 23

4 hertz.

Question 24

A child is sending pulses down a stretched rope at a rate of 2 pulses per second. The distance between the pulses is 5 meters. What is the speed of the wave?

Answer 24

2.5 m/s

Question 25

The frequency of a sound wave determines?

Answer 25

the pitch of the sound.

Question 26

What is a wavefront

Answer 26

a surface made up of all the points on a wave that have the same energy.

Question 27

What is the difference between visible light and X rays?

Answer 27

the amplitude of visible light is greater.

Question 28

A wave x meters long has a speed of y meters per second. The frequency of the wave is?

Answer 28

X/Y

Question 29

The greater the frequency of the wave in a particular medium, the greater the wavelength of the wave. True or false

Answer 29

True

Question 30

Radio waves are an example of mechanical waves. | True or false

Answer 30

False | Electromagnetic waves

Question 31

Light waves are examples of transverse waves. | True or false

Answer 31

True

Question 32

The energy of a mechanical wave depends on the frequency of the wave? True or false

Answer 32

False | It requires a medium

Question 33

As the period of the wave increases so does the frequency increases True or false

Answer 33

True

Question 34

When a wave reflects from a fixed boundary, the only change in the wave is the direction of travel True or false

Answer 34

True

Question 35

If two tuning forks of different frequencies are struck at the same time, you will hear beats as the result of constructive interference followed by destructive interference. True or false

Answer 35

True

Question 36

The matter through which a wave travels is called ?

Answer 36

Medium

Question 37

A wave that causes the particles of the medium to vibrate perpendicularly to the direction the wave travels is called

Answer 37

Transverse Waves

Question 38

The lowest point of a wave is called the?

Answer 38

Trough

Question 39

The _____is the time required for one complete wave oscillation to occur.

Answer 39

Period

Question 40

The change in the direction of a wave when the wave encounters an obstacle or opening is called .____________________.

Answer 40

reflection

Question 41

In ____________________, waves combine so that the resulting wave is bigger than the largest of the original waves.

Answer 41

constructive interference

Question 42

What causes the colorful swirls in soap bubbles?

Answer 42

The refraction of light through the different thickness of the soap bubbles.