P11

Question 1

What is a longitudinal wave

Answer 1

Longitudinal waves show areas of compression and rarefraction, sound waves are an example of this

Question 2

Traverse waves

Answer 2

Ripples on the surface of water is an example of this

Question 3

Amplitude

Answer 3

Height of a wave

Question 4

Period equatiom

Answer 4

Perioid= 1/ frequency

Question 5

Wavespeed equation

Answer 5

Frequency x wavelength

Question 6

What are electromagnetic waves

Answer 6

They are transverse waves that transfer energy from the light source of the waves to an absorber

Question 7

What wave has the shortest wavelength

Answer 7

Gamma rays

Question 8

What wave has the longest wavelength

Answer 8

Radiowaves

Question 9

How can radiowaves be produced

Answer 9

By oscillations in electircal circuits

Question 10

Where do gamma rays orginate from

Answer 10

Changes in the nucleus of an atom

Question 11

What can ultraviolet waves, x rays, and gamma rays do to human body tissues

Answer 11

Radiation damage

Question 12

What are radiowaves used for

Answer 12

Televisoj and radio

Question 13

Microwaves

Answer 13

Saterlites, cooking food

Question 14

Infared

Answer 14

Electrical heaters, cooking food infared cameras

Question 15

Visible light

Answer 15

Fibre optic communications

Question 16

Ultraviolet

Answer 16

Energy effecient lamps, tanning beds

Question 17

X rays and gamma rays

Answer 17

Medical imaging and treatments