5.4 Electricity Unit Review

Front

Which item would cause the light to glow when connected from point X to Y? Options: Piece of Yarn, Cotton Ball, Eraser, Metal Coin

Back

Metal Coin

Front

A(n) _____________ circuit will NOT conduct electricity.

Back

open

Front

Bits of paper are attracted to the surface of this balloon. What attracts the paper pieces to the balloon?

Back

Static Electricity

Front

To make an electromagnet, a conductor should be coiled around _____ (Options: a glass tube, a roll of paper, an iron nail, a wooden stick).

Back

an iron nail

Front

How will you connect the wire from the battery to the nail to design an electromagnet that will pick up the most paper clips?

Back

Wrap the wire around the nail tightly and attach both loose ends to the poles of the battery.

Front

A series circuit consists of four light bulbs. If the first light bulb burns out, what will MOST likely happen to the other light bulbs?

Back

The other lights will also burn out

Front

What is the role of a switch in an electrical circuit?

Back

To open or close the circuit, allowing or stopping the flow of electricity.

Front

Which material is the best conductor of electricity? Options: Rubber, Glass, Copper, Plastic

Back

Copper

Front

What happens to the brightness of the bulbs in a parallel circuit if more bulbs are added?

Back

The brightness of the bulbs remains the same.