Current Electricity Review

What happens to the brightness of the light bulbs in a series circuit when you add more lights?

• Each bulb gets dimmer.

• Each bulb remains the same.

• Half of the bulbs get dimmer.

• Each bulb gets brighter.

What is the purpose of a switch?

• To open and close the circuit.

• To carry the electricity through the circuit.

• To make a fun clicking sound.

• To supply the power to the circuit.

What is electric current?

• A build up of electrons.

• The difference in charge between 2 points.

• The flow of electrons through a circuit.

• The opposition to flow of electrons.

What is a load?

• A device that converts mechanical energy into electrical energy.

• A device that turns stored chemical energy into electrical energy.

• A device that uses electrical energy.

• A device that converts static electricity into mechanical energy.

What is an electric cell?

• A device that converts mechanical energy into electrical energy.

• A device that turns stored chemical energy into electrical energy.

• A device that uses electrical energy.

• A device that converts static electricity into mechanical energy.

What is a primary cell?

• A single-use source for electrical charge.

• A re-usable source for electrical charge.

• A device to change sunlight into electrical charge.

• A single-use source for sunlight to power flashlights.

What is a wet cell battery?

• One that uses water to make electricity.

• One that uses a liquid electrolyte solution.

• One that uses a powdered electrolyte solution.

What is a dry cell battery?

• One that uses water to make electricity.

• One that uses a liquid electrolyte solution.

• One that uses a paste electrolyte.

What 1 kW is equivalent to __________ watts?

• 100 W
• 1,000 W
• 10,000 W
• 10 W

What is the voltage of a 60 ohm, 2 amp device?

• 30

• 0.033

• 10.95

• 120