Electricity Review

What is electricity?

• The flow of electrons

• The flow of protons

• The flow of neutrons

• Transfer of heat energy

The measurement of how quickly charges flow through a circuit is called (a)   .

• resistance

• voltage

• current

• static electricity

A material through which electrons do NOT flow easily is a(n) (a)   .

• insulator

• fuse

• conductor

• semiconductor

What is the current produced by a 10 volt battery flowing through a 5 ohm resistor?

• A. 2 Amps

• B. 20 Amps

• C. 0.5 Amps

• D. 50 Amps

Silver has a resistance of 5 ohms. What voltage would produce a current of 2 amps?

• 10 V

• 5 V

• 2.5 V

• 0.4 V

What is the net charge of an atom that has 10 protons and 7 electrons?

• +17e

• +3e

• -3e

• -17e

If two positive charges are near each other, they will experience a ______ force.

• attractive

• repulsive

• large

• small

Which of the following objects has the highest electron affinity?

• Wool

• Glass

• Paper

• Plastic

What does the symbol labeled #1 represent?

• light

• battery

• resistor

• switch

The Law of Conservation of Charge states that ________.

• charge can be created and destroyed but NOT transferred.

• charge cannot be created and destroyed but it can be transferred.

• charge cannot be created and destroyed and it cannot be transferred.

• none of the above