EM waves: basics

Question 1

light is an example of a —- wave.

Answer 1

light is an example of a transverse wave.

Question 2

The different colours of waves correspond to different wavelengths: (red and violet)

Answer 2

1) red has the longest wavelength and lowest frequency

2) violet has the shortest wavelength and highest frequency.

Question 3

name the members of the electromagnetic spectrum going from the longest wavelength (and lowest frequency) to the shortest wavelength (and highest frequency).

Answer 3

1) radio waves
2) micro-waves
3) infared
4) visible light
5) ultraviolet
6) x rays
7) gamma rays

Question 4

all electromagnetic waves share several properties:

Answer 4

1) they are all transverse waves.
2) they can all travel through a vacuum.
3) they all travel at the same speed in a vacuum.