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Flashcards in General Properties Of Waves Deck (17):
1

In a transverse wave the oscillations are .......... To the direction of energy transfer

Perpendicular

2

In a longitudinal wave the oscillations are .......... To the direction of energy transfer

Parallel

3

What type of waves show areas of compression and rarefaction

Longitudinal

4

What type of waves are electromagnetic waves

Transverse

5

What type of waves are sound waves

Longitudinal

6

What type of waves are mechanical waves

They may be either transverse or longitudinal

7

What do waves transfer

Waves transfer energy and information without transferring matter

8

Waves can be ...., ..... and ....

Waves can be reflected, refracted and diffracted

9

Reflection

The change in direction of a light ray or a wave at a boundary when the ray or wave stays in the incident medium

10

Refraction

The change in direction of a light ray when it passes across a boundary between two transparent substances (including air)

11

Diffraction

The spreading of waves when they pass through a gap or around the edges of an obstacle which has a similar size as the wavelength of the waves

12

What must be the case of appreciable diffraction to take place

For appreciable diffraction to take place, the wavelength of the wave must be of the same order of magnitude as the size of the obstacle or gap

13

What happens when two identical sets of waves overlap

they interfere with each other

14

What does the frequency of a wave mean

the number of wave crests passing a fixed point every second

15

What does the amplitude of a wave mean

the height of a wave crest or a wave trough of a transverse wave from the rest position

16

What does the wavelength of a wave mean

the distance from one wave reset to the next wave crest (along the waves)

17

What is the relationship between wave speed, frequency and wavelength

wave speed = frequency x wavelength v = f x λ