Physical Science Semester 2 Review

All of the following are considered conductors EXCEPT:

• copper

• aluminum

• plastic

• graphite

Tags

NGSS.MS-PS2-3

Many electrical wires are wrapped with a plastic coating because plastic is:

• less expensive than steel

• more dense than copper

• able to keep its shape

• a good insulator

An electrician is wearing rubber gloves for protection. The purpose of the rubber gloves is to:

• keep the electrician dry

• insulate the electrician

• produce electricity

• create an electrical circuit

Which one of the following devices DOES NOT create an open circuit?

• fuse

• battery

• switch

• circuit breaker

Lights in a closed circuit

• are off

• are on

• has a break in it

• requires no voltage

In order to make all 3 bulbs turn on, you need

• a battery

• wires

• light bulbs

• all of the choices

Parallel circuits have light bulbs on each branch with multiple pathways for electricity

• True

• False

Series circuits have only 1 pathway for electricity.

• True

• False

When you talk about a battery's voltage, you are referring to:

• how easily electric current moves through it.

• the flow of electricity through the battery.

• its ability to carry electric current.

• the difference of energy per unit of charge.

What voltage reading would you get from a circuit with three 1.5 volts?

• 1.5 volts

• 1.5 amps

• 0 volts

• 4.5 volts