Heat Energy

Question 1

Is heat an energy?

Answer 1

Yes, heat is an energy

Question 2

What is heat energy measured in?

Answer 2

Heat is measured in joules

Question 3

What are the 3 things heat causes?

Answer 3

1. Substances temperature to increase
2. Materials to expand
3. Change the state of a subject

Question 4

What does heat cause atoms to do?

Answer 4

Heat causes atoms to vibrate

Question 5

What is expansion ( in terms of atoms)?

Answer 5

Expansion is when heat causes atoms to vibrate which moves them away from each other.

Question 6

How does a thermometer work?

Answer 6

Heat causes liquids to expand

Question 7

What does cooling cause

Answer 7

Cooling causes contraction

Question 8

What is contraction the opposite of?

Answer 8

It is the opposite of expansion

Question 9

What is contraction?

Answer 9

Contraction is the getting smaller of a material.

Question 10

Is there any vibration when contraction occurs?

Answer 10

There is little or no vibration

Question 11

What element is an exception of contraction?

Answer 11

Water

Question 12

When is water densest?

Answer 12

4C

Question 13

What does water do when frozen?

Answer 13

Water expands when frozen

Question 14

What is the definition of conduction?

Answer 14

Conduction is the movement of heat energy through a substance by atoms vibrating

Question 15

What are insulators?

Answer 15

Insulators are a substance that doesn’t allow heat to pass through easily

Question 16

What is convection?

Answer 16

Convection is the transfer of heat by liquids and gasses due to the motion of the substance itself

Question 17

Where is convection used?

Answer 17

It’s used in heating water and radiators

Question 18

What is radiation?

Answer 18

Radiation is the transfer of heat without a medium to travel through