Light Crash Course

Question 1

What is light

Answer 1

A wave

Question 2

Light

Answer 2

Electromagnetic radiation

Question 3

Wavelength

Answer 3

Distance between crests of waves

Question 4

Light with a longer wavelength has less energy

Answer 4

True

Question 5

Light with loner wave length is

Answer 5

Redder

Question 6

Light with shorter wavelength is

Answer 6

Bluer

Question 7

Red temperature

Answer 7

Cooler

Question 8

Blue temperature

Answer 8

Hotter

Question 9

Hygins principle

Answer 9

R (distance traveled) = v (velocity) • t (time)

Question 10

Doppler effect

Answer 10

Change in frequency of a wave for an observer moving relative to its source

Question 11

Long distance between two objects results in?

Answer 11

Long wavelengths with low frequency

Question 12

If the distance between two objects is short it produces

Answer 12

Shorter wavelengths with higher frequency

Question 13

As an object moves farther from us it has a lower frequency and longer wavelengths. What is this called?

Answer 13

Red shift

Question 14

When an object is moving towards us the wavelengths form higher frequencies and get shorter. What is this called?

Answer 14

Blue shift

Question 15

The Doppler effect

Answer 15

It’s the apparent change in the frequency of a wave caused by the relative motion between the source of the wave and the observer