1. You have 1 minute to brainstorm
What is energy?

2. By the end of this lesson you should…
Learning Objectives
By the end of this lesson you should…
Be able to state the nine stores and transfers of energy
Be able to identify the energy transfers taking place in a system
Be able to identify the wasted forms of energy in a system
What is energy?
Key ideas:
Energy comes in forms.
These can either be stores (i.e. places where energy is kept) or transfers (where energy is moved)
Energy is a number, we can do calculations about energy

3. The nature of energy

4. By the end of this lesson you should…
Learning Objectives
By the end of this lesson you should…
Be able to state the nine stores and transfers of energy
Be able to identify the energy transfers taking place in a system
Be able to identify the wasted forms of energy in a system

5. By the end of this lesson you should…
Learning Objectives
By the end of this lesson you should…
Be able to state the nine stores and transfers of energy
Be able to identify the energy transfers taking place in a system
Be able to identify the wasted forms of energy in a system
What is energy?
Key ideas:
Energy comes in forms.
These can either be stores (i.e. places where energy is kept) or transfers (where energy is moved)
Energy is a number, we can do calculations about energy

6. Gravitational Potential
Sound
Light
Chemical
Elastic
Gravitational Potential
Electrical
Heat
Kinetic
Nuclear

7. By the end of this lesson you should…
Learning Objectives
By the end of this lesson you should…
Be able to state the nine stores and transfers of energy
Be able to identify the energy transfers taking place in a system
Be able to identify the wasted forms of energy in a system
Energy transfer
Energy can be changed from one form to another.
For example:
Gravitational energy in a ball is converted to kinetic energy when it falls to the ground.
Where else does the energy go?

8. Energy Tranformations
Learning Objectives
By the end of this lesson you should…
Be able to state the nine stores and transfers of energy
Be able to identify the energy transfers taking place in a system
Be able to identify the wasted forms of energy in a system
Energy Tranformations
Energy cannot be made or destroyed, only transformed into different types.
EXAMPLE A candle transfers chemical energy into light and heat energy.
Chemical Energy  Light Energy + Heat Energy

9. By the end of this lesson you should…
Learning Objectives
By the end of this lesson you should…
Be able to state the nine stores and transfers of energy
Be able to identify the energy transfers taking place in a system
Be able to identify the wasted forms of energy in a system
Moving Energy
Think of an example of an device (mechanical or electrical) you have used this morning.
Can you identify…
What the device is
Whether it is mechanical or electrical
What type of energy was input
What type(s) of energy was output
Finished? Try
1) A steam train
2) Your body

10. By the end of this lesson you should…
Learning Objectives
By the end of this lesson you should…
Be able to state the nine stores and transfers of energy
Be able to identify the energy transfers taking place in a system
Be able to identify the wasted forms of energy in a system
Stores and Transfers
Thermal
Elastic
Gravitational
Kinetic
Chemical
Nuclear
Sound
Electrical
Light
Energy Stores
Energy transfers

11. Select the relevant energy stores at the start
and the end of each process.
A ball being thrown vertically upwards
Store at the beginning
Store(s) at the end 11

12. Select the relevant energy stores at the start
and the end of each process.
Cyclist accelerating
Store at the beginning
Store(s) at the end 12

14. By the end of this lesson you should…
Learning Objectives
By the end of this lesson you should…
Be able to state the nine stores and transfers of energy
Be able to identify the energy transfers taking place in a system
Be able to identify the wasted forms of energy in a system
Conservation of Energy
Can you explain what the law of conservation of energy means.
Can you explain how energy is conserved when walking up the stairs.