Light

Question 1

Universal wave equation which allows us to relate to speed, wavelength, and frequency

Answer 1

v = f λ

Question 2

All different radiations (largest to smallest)

Answer 2

Radio
Microwave
Infrared
Visible
UV
X-ray
Gamma Ray

Question 3

EM radiation travels at the same speed, what is it?

Answer 3

300 000 000 m/s

Question 4

Wavelength

Answer 4

The wavelength of a wave is the distance between adjacent peaks and is measure in meters (m). (wavelength can change depending on frequency and speed)

Question 5

Amplitude of a wave

Answer 5

The amplitude of a wave is the distance from the equilibrium point to the top of a peak. (No units)

Question 6

Formula for period of wave

Answer 6

time / # of oscillations

T=f^-1

Question 7

Period of wave

Answer 7

The period of wave is the time it takes to complete one oscillation and is measured in seconds.

Question 8

Frequency of a wave

Answer 8

The frequency of a wave is the number of oscillations which happen per unit time and is measured in Hertz (Hz).

Question 9

Electromagnetic spectrum

Answer 9

The electromagnetic spectrum is the collection of all types of EM radiation.

Question 10

How is light created?

Answer 10

Light is created by oscillating charged particles: “Electromagnetic radiation”

Question 11

Light

Answer 11

Light is a wave, Transmitting energy without transmitting matter

Question 12

Do planets, comets, asteroids and meteoroids reflect light?

Answer 12

Yes

Question 13

Why do stars emit light?

Answer 13

Stars emit light because their temperature is very high, they are very hot.