1. The beauty of this is that they are all the same thing.
Work and Energy
The beauty of this is that they are all the same thing.

2. I. Work
Earlier we discussed that a Force applied in a certain amount of time is equal to the Impulse on that object.
What if the Force is being applied over a certain amount of displacement?
That is called WORK.

3. B. What is work?
It is a constant Force acting in the direction of the displacement.
Force and displacement MUST be in the same direction in order for there to be Work done.
W=F*d (only if they are in the same dir.)
W = F*d(cosθ) (NOT same direction)
Measures in Joules (J)

4. C. When it is not in the same direction.
So in this case you must use W=F*d(cosΘ) Θ d

5. II. Kinetic Energy Moving Energy KE = 1/2mv2 Measured in Joules (J)
ANYTHING moving has it.
KE = 1/2mv2
Measured in Joules (J)

6. III. Potential Energy Stored energy due to gravity. PE = mgh
Also called Gravitational Potential Energy (GPE).
PE = mgh
Measured in Joules (J)
How much work does it take to lift a 4 kg object 10 m? How much PE does it have?

7. IV. Law of Conservation of Energy.
Energy cannot be created or destroyed, only transferred to a different form.
Ex. Rollercoaster
Ex. Pendulum
It is a LAW.
W=∆KE=∆PE
Also called the Work/Energy Theorem

8. V. POWER
P = W/t
P = F(d/t)
P=F*v
Measured in Watts (W)