Keep Your Cool

Question 1

The amount of heat energy stored in something depends on

Answer 1

It’s temp
It’s matiral
It’s mass

Question 2

How does heat energy flow

Answer 2

Heat always travel from hot to cold cool objects become hotter and the hot one becomes cold until they are the same temp

Question 3

What’s a conductor

Answer 3

Something that lets energy flow through

Question 4

What’s a insulator

Answer 4

Does let energy flow through

Question 5

Why do materials expand when heated

Answer 5

Because the extra vibrations need more space to move

Question 6

Convection currents

Answer 6

Cold water sinks to the bottom and hot to the top because the same mass of fluid is taking up more space is only part is being heated it starts to rise because it’s less dense cooler fluids move to take its place

Question 7

What happens when a substance changes state

Answer 7

Energy is given
out when partials
go back to their fixed positions

              Freezing

Ice. Water

                Melting Energy is needed to make the partials break away from there fixed positions in to the solid

Question 8

How does heat from the sun travel

Answer 8

Through radiation

Question 9

How is infrared radiation similar to light

Answer 9

It doesn’t need anything to travel through and can also go through transparent substances

Question 10

Ways of using infrared radiation

Answer 10

For cooking
Heating
Communications signals

Question 11

What is the difference of heat and temp

Answer 11

Temp describes how hot of cold something is •c

Heat. Is a form of energy joules