Energy Transfer:radiation

Question 1

What is it called when very hot thing give out light?

Answer 1

Infrared radiation

Question 2

What do some people called infrared radiation?

Answer 2

Thermal radiation or heat

Question 3

What radiation does the sun emit?

Answer 3

Light and infrared

Question 4

Ehat do both light snd jnfrared radiation travel in?

Answer 4

Waves

Question 5

What do u need to transfer energy by condcution and convection?

Answer 5

Particles

Question 6

Do you need particles to transfer radiation

Answer 6

No

Question 7

What is space?

Answer 7

A vaccum

Question 8

In a vaccum ther are….

Answer 8

No particles

Question 9

Ehat do all objects give out?

Answer 9

Radiation

Question 10

What do objects depend on to give out radiation?

Answer 10

Temperature

Question 11

How much does radiation emit per second?

Answer 11

Depends on its surface

Question 12

Infared can…

Answer 12

Transmit,absorb,reflect

Question 13

Hoe does your skin detect infared?

Answer 13

It absorbs the radiation

Question 14

How can a thermal imaging camera detect infared?

Answer 14

Camera works out ehich areas are hotter and shows the redder image

Question 15

What does a remot thermometer do when absorbs radiation?

Answer 15

It uses the radiation to work out the temperature

Question 16

Ehat do datk and light colours do ewhen they detect radiation?

Answer 16

The dark abosrbs infared and the light coloured reflect infared

Question 17

What do runners uses to refelct infared back into their body?

Answer 17

Foil to prevent the body temperature from falling too quickly