Unit 7 Review for Final Exam

Multiple Choice

Flow of electrical energy from one place to another

• Electricity

• Insulator

Multiple Choice

Circular path that can allow electricity to flow, if closed.

• Electricity

• Circuit

Multiple Choice

Sometimes electric charges can build up on the surface of objects. This is called static electricity.

• Volts

• Static Electricity

Multiple Choice

Materials that electricity can easily flow through (Example: metals and water).

• Conductor

• Circuit

Multiple Choice

Materials that electricity cannot easily flow through     (Example: Plastic, rubber, wood, and glass).

• Insulator

• Conductor

Multiple Choice

Component of a circuit that reduces the amount of electricity flowing through it.

• Volts

• Resistor

Multiple Choice

A component of a circuit that regulates the flow of electricity (can amplify the signal).

• Circuit

• Transistor

Multiple Choice

A device that stores electrical energy.

• Transistor

• Capacitor

Multiple Choice

A variable resistor that is a component of a circuit that can control the amount of electricity flowing through it using a knob or a slider. (Example: dimer knob)

• Circuit

• Potentiometer

Multiple Choice

Circuit that only has one pathway. 

• Series Circuit

• Parallel Circuit

Multiple Choice

Circuit that has two or more pathways. 

• Parallel Circuit

• Series Circuit

Multiple Choice

Which circuit would you use for holiday lights? 

• Parallel Circuit

• Series Circuit

Multiple Choice

Which circuit would you use for your house, school, or business? 

• Parallel Circuit

• Series Circuit

Multiple Choice

A circuit that has no opening in it and make a complete pathway. The light will come on.

• Close Circuit

• Open Circuit

Multiple Choice

A circuit that HAS an opening in it and Does NOT make a complete pathway. The light DOES NOT come on.

• Open Circuit

• Closed Circuit

Multiple Choice

Why do cords have plastic or rubber coding covering them over the metal part of the cords? (Hint: It is to protect you from getting what)?

• Electrocuted

• Sprayed with water

Multiple Choice

Why do cords have plastic or rubber coding covering them over the metal part of the cords? (Hint: It is to protect you from getting what)?

• Electrocuted

• Sprayed with water

Multiple Choice

The electric charge (current) only flows in one direction

• DC Current

• AC Current

Multiple Choice

The electrical current that changes direction.

• DC Current

• AC Current

Multiple Choice

The name for the electric force that causes electrons to flow. It's the measure of potential difference between two points in the circuit. Voltage may come from a or a power plant.

• Voltage

• Watts

Multiple Choice

The power or energy used by a circuit is measured in Watts.

• Voltage

• Watts

Multiple Choice

It can act as a source of electricity in circuits. Battery stores up electric power and then provides a voltage across a circuit causing power to flow through the circuit.

• Volts

• Battery

Multiple Choice

Who invented the lightbulb?

• Sr. Isaac Newton

• Thomas Edison

Multiple Choice

Who Discovered Electricity?

• Benjamin Franklin

• Thomas Edison

Multiple Choice

Who is the best science teacher?

• Ms. Hammers

• Candy