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Question 1

What does the amount of thermal energy stored depend on

Answer 1

The material
Temperature
Its mass

Question 2

What is power

Answer 2

The rate at which energy is transferred

Question 3

What is power measured in

Answer 3

Watts

Question 4

What is energy measured in

Answer 4

In joules

Question 5

How to calculate efficiency

Answer 5

Effiency = useful energy transferred
————————- X 100
Total energy supplied

Question 6

How to calculate paying for energy

Answer 6

Payback time = cost of change
—————
Savings per year

Question 7

Thermal energy meaning

Answer 7

Another term for heat energy

Question 8

Conduction

Answer 8

The way energy is transferred through solids by heating

Question 9

Convection

Answer 9

The way energy is transferred by heating in fluids

Question 10

Emit meaning

Answer 10

To give out

Question 11

Radiation

Answer 11

A way of transferring energy by heating

Question 12

Payback time meaning

Answer 12

The time it takes to get back the money you spent on making an energy saving change

Question 13

Fossil fuels

Answer 13

A fuel fomed fromcdead remains of organisms over millions of years

Question 14

3 types of fossil fuels

Answer 14

Coal
Oil
Gas

Question 15

Ways to extract fossil fuels

Answer 15

Drilling

Mining

Question 16

What is potential energy

Answer 16

Something that could potentialy be used as work

Question 17

What is Work

Answer 17

the transfer of energy by a force acting on an object

Question 18

What is glucose

Answer 18

Cells use oxygen to release energy stored in glucose

Question 19

4 types of energy

Answer 19

Kinectic energy
Heat energy
Sound energy
Gravitational energy