Energy adds up

Question 1

Define energy store

Answer 1

The different forms energy comes in.

Question 2

define conservation

Answer 2

Doesn’t get destroyed or used up it is just transferred ‘ changed’ into another form

Question 3

Dissipate

Answer 3

Energy has been spread out or ‘wasted’ by heating the environment

Question 4

What is energy measured in

Answer 4

Joules

Question 5

What is the acronym for energy stores

Answer 5

Most
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Question 6

Name all the energy stores

Answer 6

1- Magnetic
2- Kinetic
3- Heat/ therma;
4- Light (radiation)
5- Gravitational
6- Chemical
7- Sound ( radiation, waves)
8- Elastic
9- Electrical
10- Nuclear

Question 7

What is magnetic energy and example

Answer 7

It is energy found in magnetic field (magnets) e.g: iron and a magnet

Question 8

What is kinetic energy and examples

Answer 8

Energy found in moving objects . E.g: Moving car

Question 9

What is thermal energy and examples

Answer 9

Energy stored as heat E.g: fire

Question 10

What is light energy and example

Answer 10

Anything that gives of light: torch

Question 11

What is Elastic energy and examples

Answer 11

Energy found in stretched object e.g: rubber band

Question 12

What is chemical energy and examples

Answer 12

Energy found in batteries, foods and fuels

Question 13

What is nuclear energy and examples

Answer 13

Energy found in splitting or fusing of atoms e.g: sun

Question 14

What is gravitational potential energy and examples

Answer 14

Energy found in raising objects from the ground. E.g: Apple in a tree

Question 15

What is Electrical energy and examples

Answer 15

Energy found in flow of electrical current in a wire

Question 16

What is Sound energy and examples

Answer 16

Anything that gives of sound. Examples: TV

Question 17

State the law of conservation of energy

Answer 17

The law of conservation of energy states that energy doesn’t get destroyed or used up, it is just transferred ( changed) into another form.

Question 18

State the energy transfer of stores in the following example

1- Coal
2- Fire
3- Train

Answer 18

1- Chemical
2- Thermal
3- Kinetic

Question 19

State the energy transfer of stores in the following example

1- Battery
2- Wire
3- Lamp

Answer 19

1- Chemical
2- Electrical
3- Light

Question 20

State the energy transfer of stores in the following example

1- Sun
2- Plant
3- Human

Answer 20

1- Nuclear
2- Chemical
3- Kinetic

Question 21

State what happens after in the following scenario

1- Unburnt fuel
2- More oxygen
3- Cold soup
4- More chemical energy
5- Less thermal energy

Answer 21

1- Less fuel
2- More carbon dioxide and water
3- Hot soup
4- Less chemical energy
5- More thermal energy

Question 22

Explain why energy saving light bulbs are better

Answer 22

Energy saving light bulbs are better because they need less fuel to produce the same amount of light so it saves you money.It also doesn’t waste as much energy as normal light bulbs so they are better for the enviroment

Question 23

1. Can energy be used up or destroyed? What is the scientific word related to this?

Answer 23

Energy can not be used up. It is transferred. This is called conservation of energy

Question 24

3. What type of energy do devises produce as waste. Why is this bad?

Answer 24

Heat energy is usually the waste store of energy and it’s bad because it wastes money.

Question 25

5. Where do we find chemical energy?

Answer 25

Foods.fuels and batteries

Question 26

the bowling ball was raised up to the height of the persons face, the ball was released with no added push from the person, then it returned. Explain in detail what happened using terms from energy store

Answer 26

The ball was raised up to the height of the person’s face, which gave it gravitational energy.

When the ball was released, it fell so it gained kinetic energy.

Then it returned, it did not gain any energy so ut returned to the same height of the person’s face.

Question 27

What are the main energy transfers in a car engine

Answer 27

Chemical –> 1- Thermal
2-Kinetic
3- Sound

Question 28

What energy stores are generally wasted

Answer 28

Heat is usually wasted

Question 29

What does an energy transfer diagram show?

Answer 29

It shows us the input and output of transfer of energy stores

Question 30

Are you going to work hard today

Answer 30

yes :)