6.1 Waves

Question 1

For ripples on water what is the thing that is travelling

Answer 1

The wave not the water

Question 2

What to all longitudinal waves require ?

Answer 2

A medium

Question 3

What is amplitude

Answer 3

The maximum displacement of a point on a way away from its undisturbed position
On wave it from the middle line to one of the curves - transverse

Question 4

Wavelength

Answer 4

The distance from one point on wave to the equivalent point on adjacent wave
Length of one full curve

Question 5

Frequency

Answer 5

Number of waves passing a point each second

Question 6

Unit of frequency

Answer 6

Hertz

Question 7

Period

Answer 7

The time for one wave to pass point

Question 8

Wave speed

Answer 8

The speed at which the wave moves through the medium

Question 9

Wave speed

Answer 9

Wave speed = frequency x wavelength ( m)

Question 10

What is light an example of

Answer 10

An electromagnetic wave

Question 11

What are electromagnetic waves

Answer 11

Transverse waves they transfer energy from the source of the waves to an absorber

Question 12

What is good example of electromagnetic waves

Answer 12

A microwave oven - transfer energy from the source to food

Question 13

Solar panels explained

Answer 13

Light waves transfer energy from the source the sun to the absorber ( solar panels

Question 14

What if we pass white light through a prism ?

Answer 14

It’s splits into a spectrum

Question 15

On the red end of the spectrum what do the waves have

Answer 15

Lower frequency and longer wavelength

Question 16

What is the violet end of the spectrum like

Answer 16

Higher frequency and shorter wavelength

Question 17

What is the only part of the spectrum that can be detected by the human eye

Answer 17

Visible light

Question 18

Order of spectrum

Answer 18

Radio 
Microwave 
Infrared 
Visible light 
Ultra violet x rays 
Gamma rays

Question 19

Describe frequency from radio waves to gamma waves

Answer 19

Wavelength decreases

Frequency increases

Question 20

When waves travel though medium what happens

Answer 20

The particles of the medium oscillate and transfer energy

Question 21

If the wave is absorbed what happens

Answer 21

The wave transfers energy to materials energy stores

Question 22

What happens if wave is transmitted through second Material

Answer 22

The wave carries on travelling through the new material

Question 23

What happens if a wave is reflected

Answer 23

This is where an incoming wave is neither absorbed or transmitted but sent back from second material

Question 24

When wave meets boundary between two materials what happens

Answer 24

Absorbed by the second material
Transmitted
Reflected

Question 25

Why is spectrum called continuous

Answer 25

The cut of point between one type of wave and another wave is unclear

Question 26

Do electromagnetic waves need a medium to travel though

Answer 26

No

Question 27

What can electromagnetic waves travel through if medium not needed

Answer 27

Vacuum (space)

Question 28

What is the speed that electromagnetic waves travel at

Answer 28

300000000

3x10^8

Question 29

When waves change speed what else can they do

Answer 29

Change direction moving from one medium to another