Sicence (waves)

Question 1

Name me all the electromagnetic waves in order

Answer 1

Radio wave
Micro waves
Infra red
Visible light
Ultra violet
X rays
Gamma rays

Question 2

What is refraction

Answer 2

When a wave crosses a boundary between two materials it changes speed

Question 3

What are radio waves mainly for

Answer 3

Communication

Question 4

What are microwaves used by

Answer 4

Satellites

Question 5

What is infrared radiation used for

Answer 5

To monitor temperature

Question 6

What disease gamma ways and x rays give

Answer 6

Cancer

Question 7

What are longitudinal waves

Answer 7

The are parallel to the direction of energy transfer

Question 8

What are transverse waves

Answer 8

The are perpendicular to the energy transfer

Question 9

Describe the required refraction practical

Answer 9

1: draw a straight line on a paper
2: use a protractor to draw lines at right angles
3: place a glass block next the straight line
4: draw the glass block out
5: turn the lights of
6:use a ray box to hit its light at the block
7: mark the path of the incident of ray (with crosses)
8: draw the incidents lines to the transmitted one
9 then measure it

Question 10

What is the frequency of a wave

Answer 10

Is the number of waves which pass a given point every second

Question 11

Diss of ultraviolet

Answer 11

It cause burn to the skin

Question 12

Diss of microwave

Answer 12

Internal body cells become heated by exposure to microwave z