Electromagnets

Bob made an electromagnet but it was very weak. How can he make it stronger?

• Increase the flow of current

• wrap the wire loosely

• use less coils

• Use thin core of iron

Tags

NGSS.MS-PS2-3

Why are paperclips attracted to magnets?

• They contain paper

• They contain wood

• They contain iron

• They contain insulators

Tags

NGSS.MS-PS2-3

What makes an electromagnet?

• A coil of copper wire wrapped around an iron core connected to the battery

• A battery

• A coil of copper wire

• A permanent magnet

Tags

NGSS.MS-PS2-3

Which of the following has the electric motor?

• Washing machine

• Car power window

• computer hard drive

• All the above

A electromagnet is a temporary magnet that can be turn OFF and ON.

• True

• False

Tags

NGSS.MS-PS2-3

Which statement is true?

• All Magnets have a North and South Pole
• All magnets can attract large objects
• Magnets can not pull through Solids.
• All Magnets have the Same shape and Size

Tags

NGSS.MS-PS2-3

Which of these materials will a Magnet Attract?

• Plastic
• Iron
• Rubber
• Wood

Tags

NGSS.3-PS2-3

NGSS.5-PS1-3

Which part of the Magnet is Strongest?

• Center
• Sides
• Poles

Tags

NGSS.MS-PS2-3

Magnets are attracted to things made with Which metals?

• Paper
• Aluminum
• Iron

Tags

NGSS.MS-PS2-3

How could you make electromagnet stronger?

• adding more loops of wire

• increasing the current flowing through the wires

• increasing the size of the iron core

• None of the above

Tags

NGSS.MS-PS2-3