Waves

Question 1

Period (T)

Answer 1

Time taken for one wave to be produced

Question 2

Wavelength

Answer 2

Distance in which a wave repeats itself

Question 3

Two types of waves

Answer 3

• transverse

- longitudinal waves

Question 4

Transverse waves

Answer 4

Vibrations at right angles to the direction of energy travel

Eg. Water, electromagnetic waves

Question 5

Amplitude

Answer 5

How much energy the wave carries

Question 6

Longitudinal

Answer 6

Vibrations are along the direction of energy travel

Eg. Sound waves, ultrasound

Question 7

Frequency

Answer 7

Measure of how many waves are produced per second

Question 8

Speed (v)

Answer 8

Distance travelled per second

Question 9

Electromagnetic spectrum

Answer 9

Family of waves with many properties in common

Question 10

Electromagnetic waves all

Answer 10

• travel at the speed of light
• travel through a vacuum
• transverse

Question 11

Relationship between energy and frequency

Answer 11

Energy is proportional to frequency

Question 12

Refraction

Answer 12

Change in speed experienced by a wave as it moves from one medium to another

Question 13

Decrease speed

Answer 13

Towards normal

Wavelength decreases

Question 14

Increase speed

Answer 14

Away from normal

Wavelength increases

Question 15

All angles measured…

Answer 15

From the normal

Question 16

Total internal reflection

Answer 16

When light travels from a higher density medium to a lower density medium