1. Magnetism is

A. a force of its own produced by isolated magnetic charges.

B. a force interrelated to the electric force, caused by moving charges.

2. Magnetic forces are always _______ ["] to the direction of moving charges.

A. Parallel

B. "Perpendicular"

3. If 0.5 amps of current are measured in a circuit with a light bulb connected to a 120 volts outlet, what is the resistance of the filament in the light bulb?

60 watts

60 ohms

240 watts

240 ohms

4. What is the power of the bulb in the problem above.

A. 60 watts

B. 240 watts

C. 240 ohms

D. 60 ohms

5. The flow of current is

A. proportional to the resistance an inversely proportional to the voltage

B. proportional to the voltage and inversely proportional to the resistance

6. What is the difference between Electric Potential Energy and Electric Potential?

A. There is no difference, they are the same thing

B. Electric Potential is Electric Potential Energy per charge

7. Which force is stronger between a proton and an electron, the Electric Force or the Gravitational Force?

A. The gravitational force

B. The electric force