1. Energy: The ability to do work or make matter change

2. Two Types of Energy: Kinetic Energy Potential Energy

3. Examples:

4. Potential Energy
Potential Energy is the energy an object has from its position or shape.
Potential energy is stored energy in an object.

5. Potential Energy
An object with potential energy has the ability to move, change, or do work.
Formula (gravitational potential energy):
PE = weight x height

6. How are Potential Energy and Kinetic Energy related?
Energy can be transformed from potential to kinetic energy.
If an object has more potential energy at first, then it will have more kinetic energy when it starts moving.

7. Types of Energy All energy falls into two categories:
Potential: stored energy and energy of position or condition
Kinetic: motion of waves, electrons, atoms, molecules and substances.

8. Forms of Energy POTENTIAL KINETIC Chemical Nuclear Gravitational
Elastic
Radiant
Electrical
Mechanical
Sound
Thermal

9. 1. Chemical Energy stored in the bonds of atoms and molecules.
Example: Matches, food, batteries

10. 2. Nuclear
Energy stored in the nucleus of an atom. The energy that holds the nucleus together.
Example:
Breaking down Uranium

11. 3. Gravitational Energy of position or height.
Example: two skiers at different heights on hill
Energy of position or height.
Higher = more gravitational energy.

12. 4. Elastic
Example: spring, rubberband
Energy due to a material’s condition. (squeezed together or stretched out)

13. 5. Radiant Electromagnetic energy that travels in waves like light.
Example: Visible Light

14. 6. Electrical
Example: computer, phone
Movement of electrons.

15. 7. Mechanical Movement of a substance from one place to another.
Example: Riding a bike
Movement of a substance from one place to another.

16. 8. Sound Movement of energy through substances in waves.
Example: bell ringing

17. 9. Thermal
Example: boiling water
The vibration or movement of atoms and molecules. (AKA heat)

18. Energy Resources
Renewable = can be used and replaced in nature over a short period of time Non-renewable = Cannot be replaced after it is used or can be replaced only over thousands or millions of years

19. RENEWABLE NONRENEWABLE

20. RENEWABLE NONRENEWABLE
Benefits
Drawbacks
Clean energy
Won’t run out
Expensive
Less existing infrastructure
Sun not always out
Not always windy
Damage to ecosystems when building dams
Benefits
Drawbacks
Cheaper
More widely available and already in place
Pollution
Contribute to climate change
Will eventually run out