potential and kinetic energy

1. Look Familiar?
Keep it in mind

2. The Mystery
 It is in everything
 Nothing happens without it
 We buy it, we sell it, we use it, we waste it, everything depends on it
 We can’t create it, we can’t destroy it
 It can change form, it can go from one thing to another
 REMEMBER THIS
 We do, however, know how it behaves; therefore, we can predict what
will happen because of it
 What is it?
Energy

3. Main Types of Energy
 Potential
Stored Energy
It has the potential
to do something
 Kinetic
Moving Energy
It is making things
happen

4. Forms of Energy
 Chemical
 Stored in the bonds of
atoms and molecules
contained in foods, fuels,
and chemicals
 Nuclear
 Stored in the nucleus of an
atom
 Very large amounts of
energy can be released
when the nucleus is split
apart

5. Forms of Energy
 Sound
 Energy that we can hear in
the form of waves
 Radiant or
Electromagnetic
 Energy from waves

6. Forms of Energy
 Electrical
 Energy contained in
electrons flowing through a
wire or in the atmosphere
 Heat or Thermal
 Energy contained in
particles of matter as they
move

7. Forms of Energy
 Gravitational
 Energy due to the position
above earth
 Mechanical
 Energy stored in objects by
tension contained in a
spring or elastic

8. How Can I Remember?
 Mechanical
 Radiant (Electromagnetic)
 Sound
 Gravitational
 Chemical
 Heat (Thermal)
 Electrical
 Nuclear
Mrs. G. Chen
Who?

9. Remember?
It Can Change Form
 Potential energy can change to kinetic energy
 Kinetic energy can change to potential energy

10. Remember?
It Can Go From One Form to Another

11. Remember?
It Can Go From One Form to Another
 Can you pick out the energy transformations?
 Too easy!
 Here are some more

12. What is the
Significance?
Law of Conservation of Energy
Can You Come Up With It? Here’s a Hint!
Energy cannot be created or destroyed, but it
can be changed from one form to another
The amount of energy in the universe is the
same now as it ever was and will ever be!
Why?

13. Food for Thought
 Does it sound like another law?
 Which one?