Electricity

Like charges __________ and opposite charges ________.

• attract, repel

• attract, attract

• repel, attract

• repel, repel

The Electric force is most similar to what other fundamental force in the universe?

• Gravitational force

• Strong nuclear force

• Weak nuclear force

• The Force in Star Wars

If q₁ was doubled what would be the effect on the Force?

• Doubled

• Quadrupled

• Half

• 1/4

If r was doubled what would be the effect on the Force?

• Doubled

• Quadrupled

• Half

• 1/4

As the resistance of a circuit increases, the current will

• increase

• decrease

• stay the same

• increase and then decrease

Current has units: 

• kilowatt·hour 
• ampere 
• coulomb 
• volt 

Voltage is measured in __.

• volts.
• watts.
• coulombs. 

How many Volts would it take to push 5 Amps through a resistance of 10 Ohms

• 10 volts

• 1 volt

• 50 volts

• 5 volts

Resistance is a measure of....

• the energy per unit charge in a circuit
• how hard it is for electrons to move through the circuit
• how hard it is for electrons to move through the battery
• the number of charge carriers in a circuit

The difference in electrical potential energy between two places is called

• resistance
• friction
• induction
• voltage