P13.1 The electromagnetic spectrum

Question 1

What are electromagnetic waves?

Answer 1

They are electric and magnetic disturbances that can be used to transfer energy from a source to an absosrber

Question 2

What is the order of the magnetic waves after the blue range?

Answer 2

Ultraviolet
X rays
Gamma rays

Question 3

What is the order of the magnetic waves after the yellow range?

Answer 3

Infrared
Microwaves
Radiowaves

Question 4

What type of light do your eyes detect?

Answer 4

Visible light

Question 5

What is the speed of electromagnetic waves in a vacuum?

Answer 5

3.0 x 10^8 m/s

Question 6

What is the wave speed equation?

Answer 6

Wave length x frequency

Question 7

How does a shorter wavelength affect the frequency?

Answer 7

Shorter the wavelength - the higher the freuqnecy

Question 8

How does the frequency affect the energy of the wave?

Answer 8

The higher the frequency the larger the energy of the wave

Question 9

What is the wavelength of visible light?

Answer 9

350 - 750 nm