Heat Transfer

Question 1

What is Infrared Radiation the heat energy from?

Answer 1

Electromagnetic Waves

Question 2

Where does the emission of Infrared Radiation occur?

Answer 2

In Solids, Liquids and Gases

Question 3

What Objects can absorb or emit Infrared Radiation?

Answer 3

Any Objects

Question 4

What is Infrared Radiation next to in the Electromagnetic Spectrum?

Answer 4

Visible Light

Question 5

An object that’s hotter than its surroundings…

Answer 5

…emits more radiation than it absorbs (as it cools down)

Question 6

An object that’s cooler than its surroundings…

Answer 6

…absorbs more radiation than it emits(as it warms up)

Question 7

What happens when you put your hand near a hot object?

Answer 7

You can feel the heat radiating against your hand

Question 8

What is Conduction the main form of heat transfer of?

Answer 8

Solids

Question 9

What is Convection the main form of heat transfer of?

Answer 9

Liquids and Gases

Question 10

What does both Conduction and Convection involve?

Answer 10

The transfer of energy by particles

Question 11

The Bigger the Surface Area…

Answer 11

… the more waves that can be emitted from the surface, so the quicker the transfer of heat

Question 12

The Bigger the Surface Area exposed to heat radiation…

Answer 12

… the quicker it will heat up

Question 13

Radiation is the only one that works through a…

Answer 13

… Vacuum

Question 14

Where does Hot Objects tend to flow from?

Answer 14

From a hot object to its cooler surroundings