Equations
Magnetism
Electric Fields
Electric Potential
Circuits
100

kinetic energy

KE = 0.5mv2

100

Define: diamagnetic substance

a substance that is made up of atoms with no net magnetic field

100

Where do electrical field lines come from? 

positive charges

100
When calculating electric potential, which charge's value do you use? 

stationary charge

100

What is an Amp? 

Coulombs/sec

200

relate power to an electric circuit

P=I*V
200

Define: Ferromagnetic substance

A substance whose magnetic atoms are aligned so that their magnetic fields add to one another

200
What is the magnitude of two charges that are attracted to each other? 

They are equal.

200

If the stationary charge is positive, what is the electrical potential? 

positive

200

Define: Conventional current

Current that flows from the positive side of the battery to the negative side.

300

change in potential energy that depends on the potential difference

dPE = q*dV

300

Define: Paramagnetic substance

a substance whose magnetic atoms are arranged so that their individual magnetic fields cancel out. under the influence of an external magnetic field, however, these substances produce a magnetic field that is in the same direction of the external magnetic field.

300

Where should a freely-moving charge be placed so that it experiences the most acceleration? 

where the force is greatest

300

As two particles get closer, what happens to the potential energy? 

It increases.
300

If multiple devices on a circuit work independently of each other, what kind of circuit is this an example of? 

parallel circuit

400

electrostatic force between two charged objects

F = (k*q1*q2)/r2

400

What's the difference between alternating and direct current? 

Alternating current is electrical current that changes direction back and forth in a circuit. Direct current is current that always flow in the same direction around a circuit.

400

In an electric field, where should a freely-moving charge be placed so that it experiences the most acceleration?

where the field line density is greatest

400

Define: Electron volt

The decrease in potential energy when an electron moves through a potential difference of exactly one volt

400

Effective resistance occurs in an effective resistor. Does this occur in series or parallel?

series

500

Ohm's Law

V=I*R

500

State Faraday's Law of Electromagnetic Induction

The electromotive force in a loop of wire is proportional to the rate of change of magnetic flux through the loop.

500

How does an electric heater work? 

An electrical heater's elements have a certain amount of resistance. This resistance converts the kinetic energy of the electrons into heat energy.
500

Is electric potential potential energy? 

No

500

How does an Ohm relate to volts and amps? 

An Ohm is Volts/Amps.
A Volt is Amps*Ohms.

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