Wavelength

Question 1

Units for frequency

Answer 1

Hertz

Question 2

Definition of “ period of wave”

Answer 2

Time taken for 1 complete wave to pass a point

Question 3

Name the 2 types of waves

Answer 3

Transverse and longitudinal

Question 4

Describe a longitudinal wave

Answer 4

Oscillations are parallel to the direction of waves

Question 5

Describe a transverse wave

Answer 5

Oscillations are perpendicular to the direction of the waves

Question 6

Definition of refraction

Answer 6

Refraction is the change of speed of light when it’s goes from one material to another

Question 7

What does the electromagnetic spectrum all have in common

Answer 7

They all travel at the speed of light

Question 8

What’s the speed of light

Answer 8

3 x 10 to the power of 8 meters per second

Question 9

Unit for wavelength

Answer 9

Lambda

Question 10

Name the electromagnetic spectrum ( determined by the LOWEST wave frequency)

Answer 10

Radio waves, microwaves, infrared, visible light, ultraviolet, x-rays and gamma rays

Question 11

Describe the frequency of a water wave

Answer 11

The number of waves passing any point in one second

Question 12

What happens to the wavelength if there is a greater diffraction

Answer 12

The wavelength is longer

Question 13

What happens to a ray of light when travelling from glass into air

Answer 13

Direction of light SOMETIMES changes

The speed of light ALWAYS changes