Electricity Review

If you have a light bulb, wire, and a metal screw, what do you need to make a circuit?

• a switch

• a buzzer

• a wire

• a battery

Which of these is best described as a conductor?

• a metal coin

• glass bead

• plastic straw

• wooden toothpick

If you want to determine if foam is a good conductor and connect batteries to a foam cup, what skill are you using?

• predicting

• hypothesizing

• using models

• planning and conducting and investigation

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Which of these is an insulator?

• CD Case

• paper clip

• penny

• staple

If you wanted to build a circuit, which of these contains everything you would need?

• wire, ruler, switch, battery

• string, buzzer, battery, switch

• buzzer, wire, switch, light bulb

• battery, wire, light bulb, switch

Tags

NGSS.3-5-ETS1-1

NGSS.3-5-ETS1-2

What type of circuit is this?

• closed circuit

• series circuit

• magnetic circuit

• parallel circuit

Why do you need to remove the plastic wrapping from a metal wire before you can use it in a circuit?

• so the wire can be bent and fit into the circuit

• to prevent the circuit from becoming overloaded

• the plastic is too thick to use on a circuit

• so electricity can pass easily from metal to the circuit

When you place a wooden object in a circuit, the light bulb gets dimmer. Which best describes the craft stick?

• battery

• insulator

• generator

• conductor

In a light bulb, the filament glows brightly when the switch is turned on. What energy transformation is occuring?

• chemical into light energy

• light energy into electrical energy

• potential energy into thermal energy

• electrical into thermal and light

Some materials conduct electricity while others do not. Which of these is a conductor?

• nail

• plastic ruler

• rubber band

• toothpick