LET THERE BE LIGHT AND SOUND: Learning Intention 1 Flashcards
To know how to describe the anatomy of a wave (13 cards)
1
Q
What is a wave
A
a pattern of motion that transfer energy from place to place without transferring matter
2
Q
What is the substance that wave moves through
A
a medium
3
Q
Do electrogmagnetic waves need a medium
A
no
4
Q
Which waves need a medium
A
mechanical waves
5
Q
What does light energy travel as
A
electromagnetic radiation
6
Q
Types of waves
A
- transverse
-longitudinal
7
Q
What are transverse waves
A
waves in which the medium vibrates at right angles to the direction of its propagation
8
Q
What are longitudinal waves
A
waves vibrating in the direction of propagation
9
Q
Examples of transverse waves
A
Water and light waves
10
Q
Examples of longitudinal waves
A
Sound and ultrasound waves
11
Q
Anantomy of a wave
A
- crest
- trough
- equillibrium
- wavelength
- amplitude
- frequency
- velocity
12
Q
What is a compression
A
when particles are bunched together
13
Q
What is rarefaction
A
when particles are spread out
