Year 8 Physics

Question 1

What is kinetic energy?

Answer 1

Kinetic energy is the energy of movement

Question 2

What is heat energy?

Answer 2

Heat energy comes from the sun, flames, chemical reactions, or even a person or animal

Question 3

What is light energy?

Answer 3

Light energy comes from the sun, light globes, fires and animals such as glow worms

Question 4

What is sound energy?

Answer 4

Sound energy is the energy that air has when it is vibrating

Question 5

What is electrical energy?

Answer 5

Electrical energy is produced is produced by power stations, solar cells, batteries and lightning.

Question 6

What is stored energy?

Answer 6

Stored energy is potential energy, eg petrol in a cars tank

Question 7

What is gravitational potential energy?

Answer 7

Gravitational potential energy is energy stored in an object above ground

Question 8

What is chemical energy?

Answer 8

Chemical energy is energy stored in substances it can be released by the body for example when we digest foods

Question 9

What is elastic potential energy?

Answer 9

Elastic potential energy is energy stored in a stretched or squashed spring

Question 10

What is nuclear energy?

Answer 10

Nuclear energy is energy stored inside the tiny atoms that make up all matter

Question 11

Draw the symbol for a connecting wire in an electrical circuit?

Question 12

Draw the symbol for a battery

Answer 12

—–+|[|[|——-

Question 13

Draw the symbol for a light globe?

Answer 13

—-circle with cross through it——

Question 14

Draw the symbol for a resistor

Answer 14

— oblong box with line going in both ends or line like an earthquake reading—wwwwwwww——-

Question 15

Draw the symbol for a open switch

Answer 15

—–/ ——

Question 16

Draw symbol for switch closed

Answer 16

—–.—–.——

Question 17

True or false energy exists in many forms, it can change forms but is never lost

Answer 17

True