Energy

Question 1

What is Converting energy

Answer 1

One form of energy can be changed into another form of energy
This is very useful for us so we can make the best use of energy .
When it has been changed we say it has been transferred

Question 2

Light bulb energy transferes

Answer 2

Electrical energy transferred into light and heat energy

Question 3

Energy transfers with solar panels

Answer 3

Light energy is transferred to electrical energy

Question 4

Energy transfers in fireworks

Answer 4

Chemical energy into kinetic, light, heat and sound energy

Question 5

Energy transfers in a descending role rooster

Answer 5

Gravitational potential energy into sound, kinetic and heat energy

Question 6

What happens with energy when a ball falls

Answer 6

Potential energy decreases

Kinetic energy increases

Question 7

What happens with energy transfers with an archer

Answer 7

• archer transfers chemical energy from the sugar in her muscles into elastic potential energy or strain energy
• the strain energy is stored in the bow and the string
• as the string is released it has kinetic energy and this is transferred into the arrow
• when the arrow this the target friction between the arrow and the target coverts kinetic energy to mostly heat energy

Question 8

9 main types of energy

Answer 8

Kinetic
Sound
Electrical
Chemical
Elastic potential
Gravitational potential 
Nuclear
Light
Thermal

Question 9

Eating energy transfers

Answer 9

Transfers chemical energy into all forms of energy our bodies produce

Question 10

Microphone energy transfers

Answer 10

Sound energy into electrical energy

Question 11

Wind turbine energy transfers

Answer 11

The kinetic energy of wind into electrical energy

Question 12

Energy transfers of a nuclear power station

Answer 12

Nuclear energy into heat kinetic and electrical energy

Question 13

What is the law of conservation of energy

Answer 13

Energy cannot be created or destroyed in any process it is just converted from one form to another

Question 14

What is lost energy

Answer 14

After converting energy to do useful things the energy produced becomes lost by radiated around into surroundings
Lost energy isn’t destroyed it is just not available for us to use anymore

Question 15

Explain an energy transfer diagram with a bow and arrow

Answer 15

1. Energy input - mechanical work of stretching string and bow
2. Process - stretching bow and arrow to release energy
3. Energy output - kinetic energy of moving arrow

Question 16

What’s a sankey diagram

Answer 16

• energy flow shown by arrows whose width is proportional to the amount of energy involved
• broad arrows = large energy flow
• narrow arrows = small energy flow