Waves

Question 1

Waves have….

Answer 1

Amplitude, wavelength and frequency

Question 2

Transverse waves have….

Answer 2

Sideways vibrations

Question 3

Longitudinal waves have….

Answer 3

Vibrations along the same line

Question 4

Examples of longitudinal waves?

Answer 4

Sound waves and ultrasound
Shock waves
Slinky Spring(pushing the end)

Question 5

In longitudinal waves the vibrations are…. To the direction of energy transfer of the wave!

Answer 5

Parallel

Question 6

Wave speed=

Answer 6

Wave speed=frequency X wavelength

Question 7

All waves can be …….,…… And …….

Answer 7

Reflected, refracted and diffracted

Question 8

Reflection of light lets us see

Answer 8

Things

Question 9

Angle of incidence =

Answer 9

Angle of reflection

Question 10

Diffraction is what?

Answer 10

Waves spreading out

Question 11

Refraction is what??

Answer 11

Changing the speed of a wave can change its direction

Question 12

Spectrum of em waves?

Answer 12

Radio waves 
Micro waves 
Infra red
Visible light 
Ultra violet 
X Ray 
Gamma rays

Question 13

Radio waves are used for what?

Answer 13

Communication

Question 14

Microwaves are used for what?

Answer 14

Satellite communication and mobile phones

Question 15

Infrared waves are used for…

Answer 15

Remote controls and optical fibres

Question 16

Visible light is used for….

Answer 16

Photography

Question 17

Sound travels as what?

Answer 17

Longitudinal waves

Question 18

Sound waves can do what?

Answer 18

Reflect and refract

Question 19

The higher the frequency the higher the…..

Answer 19

Pitch

Question 20

Light from other galaxies is….

Answer 20

Red shifted

Question 21

The further away the Galaxy, the ……… The red shift

Answer 21

Greater

Question 22

How long ago was the “Big Bang”

Answer 22

14 billion years ago