Unit 1 Review: Electricity and Magnetism

What happens when two north poles of a magnet are placed together?

• they repel
• they attract
• they cancel each other out
• the strength of the magnet is doubled

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Which of the following are characteristics of series circuits?

• The circuits has only a lightbulb and wires.

• If one light in a circuit goes out, the remaining

  lightbulbs will not work.

• Houses are wired on series circuits.

• The circuit has only one path for the

  electrons to flow.

• The circuit will continue to work if one lightbulb

  goes out.

Which of the following are conductors?

• 
• 
• 
• 
• 

What kind of circuit is this?

• Series

• Parallel

• Open

What kind of circuit is this?

• Open parallel circuit

• Closed parallel circuit

• Open series circuit

• Closed series circuit

What would happen if another lightbulb was added to this circuit?

• They would all remain lit, but would be brighter.

• They would all remain lit, but would be dimmer.

• They would all go out.

• They would all remain lit and their brightness would not change.

Tags

NGSS.MS-ETS1-1

Any object that allows electricity to flow through it easily is called a–

• Conductor

• Insulator

• Insulator

• Choreographer

Indicate all of the following that would improve this electromagnet.

• Decrease battery voltage.

• Use a bigger nail.

• Increase battery voltage.

• Wrap the wire more times around the nail.

• Use a smaller nail.

Tags

NGSS.MS-ETS1-1

A compass is an instrument that is used in navigation due to its property of pointing in what direction?

• West

• East

• South

• North

The shown experiment creates —

• current electricity and a magnetic screw

• a conductor and a motor

• static electricity and an insulator screw

• resistance and a generator