Waves

Question 0

What are electromagnetic waves?

Answer 0

Waves that do not need a medium and can travel through a vacuum.

Question 1

What are mechanical waves?

Answer 1

Waves that need a medium to travel through

Question 2

What is a transverse wave

Answer 2

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

Question 3

What is a longitudinal/compressional wave?

Answer 3

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

Question 4

What is the highest part of a transverse wave?

Answer 4

The crest.

Question 5

What is the lowest part of a transverse wave?

Answer 5

The trough.

Question 6

What is the wavelength?

Answer 6

The distance between two corresponding parts of a wave

Question 7

What is the amplitude?

Answer 7

The maximum distance that the particles of a medium move from the rest position.

Question 8

What is the equilibrium?

Answer 8

The rest position.

Question 9

What is the speed of light in order of fastest to slowest?

Answer 9

vacuum —> gas —> liquid —> solid

Question 10

What is the speed of sound in order from fastest to slowest?

Answer 10

solid —> liquid —> gas —> vacuum

Question 11

The speed of a wave depends on what?

Answer 11

The medium it is traveling through.

Question 12

What is frequency?

Answer 12

The number of full wavelengths that pass in a given time interval,
cycles or waves per second.

Question 13

What is period?

Answer 13

The time it takes for a wave to pass, seconds per cycle or wave.

Question 14

The ray of refraction bends towards the normal when _______ and away from the normal when _______.

Answer 14

Slowing down, speeding up.

Question 15

What type of interference adds to waves?

Answer 15

Constructive

Question 16

What kind of interference takes away from the wave?

Answer 16

Destructive

Question 17

The longer the wavelength, the _______ the pitch.

Answer 17

Lower

Question 18

The shorter the wavelength, the ________ the pitch.

Answer 18

Higher

Question 19

What is a wave?

Answer 19

A disturbance that transfers energy from place to place.

Question 20

What is refraction?

Answer 20

The bending of waves due to a change in speed.

Question 21

What is diffraction?

Answer 21

The bending of waves around the edge of a barrier.

Question 22

What is interference?

Answer 22

The interaction between two waves that meet.

Question 23

What is a standing wave?

Answer 23

When and incoming wave combines with a reflected wave in such a way that it appears to be standing still.

Question 24

What are the highest and lowest points on a standing wave called?

Answer 24

Antinodes

Question 25

How does a wave travel through a medium?

Answer 25

The wave's energy passes from particle to particle.

Question 26

Frequency is measured in units called _______.

Answer 26

Hertz

Question 27

Why do you see lightning from a distant storm before you hear thunder?

Answer 27

Light travels faster than sound.

Question 28

A material that reflects or absorbs any light that strikes it is _______.

Answer 28

Opaque

Question 29

What is a concave mirror?

Answer 29

A mirror with a surface that curves inward like the inside of a bowl.

Question 30

What happens when sound passes from air into water?

Answer 30

Its speeds up.

Question 31

What is a lens?

Answer 31

A curved piece of glass or other transparent material that is used to refract light.

Question 32

What are the primary colors of light?

Answer 32

Red, green, and blue

Question 33

What is a telescope?

Answer 33

An instrument that uses lenses or mirrors to collect and focus light form distant objects.

Question 34

What is monochromatic light?

Answer 34

Light that continually produces the same wavelength.

Question 35

What is polychromatic light?

Answer 35

Light that produces varying wavelengths.

Question 36

What is an example of longitudinal wave?

Answer 36

Sound.

Question 37

The speed of sound depends on what?

Answer 37

The properties of the medium it is traveling through.

Question 38

You can hear sounds from around corners because of ________.

Answer 38

Diffraction

Question 39

In a vacuum, all electromagnetic waves have the same _________.

Answer 39

Speed.

Question 40

What type of image do concave mirrors form?

Answer 40

Real

Question 41

What is the focal point?

Answer 41

The point where the light rays meet.

Question 42

In a wave, energy ________.

Answer 42

Spreads out

Question 43

What is reflection?

Answer 43

The result of a wave striking a surface or boundary.

Question 44

What is an example of a transverse wave?

Answer 44

Light