Current

An example of a conductor is :

• a glass paperweight
• a plastic cap
• a metal screw
• a wooden handle

Tags

NGSS.MS-PS3-3

An example of an insulator is:

• iron
• silver
• copper wire
• rubber

Tags

NGSS.MS-PS3-3

All wires used in electric circuits should be covered with:

• a colored material.
• a conducting material.
• an insulating material.
• none of these.

Tags

NGSS.MS-ETS1-2

What part of a circuit is this object?

• power source
• load
• pathway
• switch

A __________opens and closes a circuit?

• key
  key
• magnet
• switch
• electromagnet

What are the components of a simple circuit?

• wires, switch, outlet
• battery, switch, motor
• wires, light bulb, motor
• wires, battery, light bulb

Voltage is measured in __.

• volts.
• watts.
• coulombs. 

The movement of electrons from atom to atom in a line results in a flow of _____. 

• amperage.
• electric current.
• electromagnetic connectors. 

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

As the resistance of a circuit increases, the current will

• increase
• decrease
• stay the same

Current has units: 

• kilowatt·hour 
• ampere 
• coulomb 
• volt