Physical Science Semester 2 Final Review

Which of the following materials is an electrical conductor?

• Glass

• Plastic

• Aluminum

• Wood

Which material is commonly used as an insulator?

• Copper

• Rubber

• Gold

• Silver

Resistance in a circuit is best described as:

• The amount of voltage applied

• The number of batteries in the circuit

• The circuit’s opposition to current

• The power consumed by a bulb

Voltage is defined as:

• The total resistance of the circuit

• The strength of the electric force pushing charges

• The number of moving electrons

• The amount of heat produced

Electric current is:

• The charge stored in a battery

• The flow of electric charge through a conductor

• A magnetic field

• A stationary build-up of electrons

Which type of current changes direction periodically?

• DC (Direct Current)

• Static Current

• AC (Alternating Current)

• Magnetic Current

What kind of current is produced by batteries?

• Alternating Current

• Direct Current

• Pulsed Current

A circuit that has a break and no current flow is considered:

• Open

• Closed

• Shorted

• Active

A circuit that is complete and allows current to flow is:

• Broken

• Open

• Closed

• Magnetic

What is the current in a 120 V circuit with a resistance of 6 ohms?

• 20 A

• 10 A

• 15 A

• 25 A