Electricity - Static, Human Harnessed, and Circuits

Which object will NOT allow an electric current to flow through it?

• copper wire

• an iron nail

• a rubber eraser

• an aluminum key

What part of a circuit pushes the current through the circuit?

• wire

• battery

• switch

• light bulb

What part of a circuit stops the current if it is open?

• wire

• switch

• battery

• light bulb

Conductors are materials that allow the electricity to flow through them. What is an example of a conductor?

• paper

• plastic straw

• staple

• crayon

The power goes out at a friend's house and they have no electricity. What could they use as an alternative form of electrical energy?

• candles

• a fire in the fireplace

• a battery-operated lamp

• a light in the refrigerator

Tags

NGSS.MS-ETS1-1

Based on what you know about electrical conductors, which material will make a light bulb shine the brightest?

• wood

• glass

• copper

• plastic

The switch is the part of a circuit that opens and closes to allow the current to flow or not flow.

• True

• False

Why is having a plastic cover on an electrical cord a good idea?

• It keeps the metal wire from scratching anything

• It is useful when coiling up the wire for storage

• It is a conductor that will protect you from getting shocked

• It is an insulator that will protect you from getting shocked.

When a circuit is broken, the flow of electricity stops. The break can be

• outside of the circuit

• Inside the battery

• next to the light bulb

• anywhere in the circuit

What type of energy occurs when a sock is stuck to a blanket when it is taken out of the dryer

• current electricity

• static electricity

• heat energy

• high voltage energy

Tags

NGSS.MS-PS2-3