1. Physics Final 2018
Chapters 17, 18,19, 20, 21,
12, 13, 14, 15

2. Electrostatics Charges can be positive or negative
A proton has a positive charge at 1.6 x C
An electron has a negative charge at -1.6 x C
Electrons can move, protons are stuck
Opposite charges attract

3. Coulomb’s Law
Distance and amount of charge affect force

4. PEelectric, like all energy and work is measured in
When two charges interact, there is a force between them. This force creates potential energy.
This electric PE is a form of mechanical energy, like KE, GPE and PEelastic
PEelectric, like all energy and work is measured in
Joules, J

5. The change of potential energy per charge Measured in J/C or volts
Potential Difference
The change of potential energy per charge
Measured in J/C or volts
Ohm’s Law
V = IR

6. Current:
How much charge passes in a given time
I = DQ/Dt = C/s = amps

9. a
Find equivalent resistance, current in circuit, current in resistor a, power dissipated by a

10. Magnetic field lines come out of the north and go into the south

11. Right Hand Rule for Current
Velocity of a “+” charge
B is the magnetic field strength

12. Drawing Magnetic Fields
Magnetic Vectors have to be shown in 3D
Velocity of charge (+)
Magnetic field strength
Magnetic Force