Magentism and Electricity Review

Which of the following are conductors?

• air
• plastic straw
• copper wire
• wooden spoon

Which of the following is an insulator

• water
• iron nail
• a piece of plastic
• a metal spoon

Which of the following orientation would result in the greatest attraction between the two magnets?

• A
• B
• C
• D

What essential part of an electric circuit is missing in this picture where the "X" is?

• on/off switch
• source of energy (electric current)
• wires
• electrical device

Which change to an electromagnetic would strength the magnetic field?

• add a battery
• reduce the number of coils
• switch the direction of the battery
• remove the iron nail

Tags

NGSS.MS-PS2-3

Which of the following is a true statement about the magnetic field between two magnets?

• 
  The south pole of one magnet is attracted to the south pole of the other magnet.
• The north pole of one magnet is attracted to the north pole of the other magnet.
• 
  The south pole of one magnet is attracted to the north pole of the other magnet.
• 
  The south pole of one magnet is attracted to both poles of the other magnet.

What device is used to create electricity?

• resistor
• insulator
• voltmeter
• generator

If all batteries are the same which circuit will have the brightest light bulbs?

• A
• B
• C
• D

Which bulb will light?

• A
• B
• C
• D

Tags

NGSS.MS-ETS1-1

Certain metals, primarily metals, allow electric current to flow easily through them. Still, current does not flow perfectly freely in any material. What is this quality of hindering the flow of electric current called?

• current
• voltage
• friction
• resistance