Moving and Storing Heat

Question 0

2) When a substance is heated it gains…?

Answer 0

Kinetic energy

Question 1

1) Heat is a measure of…?

Answer 1

Energy

Question 2

3) When particles gain kinetic energy (In a gas or liquid) they…?

Answer 2

Move around faster

Question 3

4) In a solid that gains kinetic energy the particles…?

Answer 3

Vibrate more rapidly

Question 4

5) The energy produced by a solid, liquid or gas being heated is measured on…?

Answer 4

An absolute scale

Question 5

6) What does an absolute mean in relation to the movement of particles?

Answer 5

Can’t go below zero (limit to how slow particles can move)

Question 6

7) What is the unit of measurement for heat energy?

Answer 6

Joule (j)

Question 7

8) Temperature is measure of…?

Answer 7

The average kinetic energy of the particles in a substance

Question 8

9) Temperature is measured in…?

Answer 8

Degrees Celsius and degrees Fahrenheit (these are not absolute scales)

Question 9

10) Energy tends to flow…?

Answer 9

From hot objects to cooler ones

Question 10

11) If there’s a difference in ….. between two places, then ….. will flow between them

Answer 10

• Temperature

- Energy

Question 11

12) The greater the difference in temperature…?

Answer 11

The faster the rate of cooling

Question 12

13) What is specific heat capacity the measure of?

Answer 12

How much energy a substance can store

Question 13

14) Materials that gain a lot of energy…?

Answer 13

Release loads of energy when they cool down

Question 14

15) What is specific heat capacity?

Answer 14

The amount of energy needed to raise the temperature of 1Kg of a substance by 1 degrees Celsius

Question 15

16) What is the formula for specific heat capacity?

Answer 15

Energy = mass x specific heat capacity x temperature change

Question 16

17) Give an example of conduction and how the surrounding environment effects the cooling rate

Answer 16

A hot cup of coffee will cool down quicker in a cold room than in a warm room