# Final: Waves Flashcards

1
Q

sound waves..

A

require a medium

2
Q

light waves ..

A

are electromagnetic waves

3
Q

the wavelength of the wave in the diagram is

A

1.5 m

4
Q

a man is standing on the shore of a beach up to his knees in water. every 5 seconds a wave breaks on him. what is the period?

A

5 seconds

5
Q

a train of waves is moving at a speed of 30 m/s. the frequency of the waves is 10 Hz. what is the wavelength?

A

3 m

6
Q

how loud a sound is depends on

A

the amplitude of the waves

7
Q

a _______ is a good mathematical model for representing transverse waves

A

sine curve

8
Q

the color light is determined by ______ of the light waves

A

the frequency

9
Q

the wave with a frequency of 0.5 Hz and a speed of 10 m/s has a wavelength of

A

20 m

10
Q

(T/F) A wave transports energy but not matter.

A

true

11
Q

(T/F) Light waves require a medium in which to travel.

A

false - don’t require

12
Q

(T/F) Sound waves are examples of longitudinal waves.

A

true

13
Q

(T/F) As the frequency of found waves increase, the wavelength of the sound waves decreases.

A

true

14
Q

(T/F) The color of visible light depends on the wavelength of the light

A

true

15
Q

(T/F) When two waves are in the same place at the same time, the combine to produce a single waves

A

true

16
Q

(T/F) Nodes in a standing wave are the results of constructive interference

A

false- destructive

17
Q

when light passes from air to glass, the light may change direction due to reflection

A

false- refraction