Magnetism #1

When two magnets repel each other which poles are facing each other?

• North and South
• South and North
• North and North
• Positive and Negative

Tags

NGSS.MS-PS2-3

What happens to the magnetic force as an object gets further away from the magnetic field?

• The force increases
• The force decreases
• The force stays the same
• There was no force to begin with

Tags

NGSS.MS-PS2-3

How are the domains of a magnet organized?

• The domains are very weak
• The domains are all mixed up
• The domains all point in the same direction
• There are no domains

How are electromagnets different from regular magnets?

• Their strength can be changed
• They can be turned on and off
• Their polarity can be reversed
• All choices are correct

Tags

NGSS.MS-PS2-3

How do you increase the strength of an electromagnet?

• Decrease the number of batteries and increase the number of coils
• Increase the electric current and decrease the batteries
• You cannot strengthen an electromagnet
• Increase the electric current and increase the number of coils

Tags

NGSS.MS-PS2-3

The force when two magnets pull together

• repel

• attract

• force

• induced magnetism

The force when two magnets push apart

• repel

• attract

• magnetite

• induced magnetism

A magnet that is not always a magnet

• temporary magnet

• magnetite

• rock

• mineral

Which of the following is true about a bar magnet?

• Its magnetic field is strongest near its center.
• It is surrounded by a magnetic field.
• The north pole is stronger than the south pole.
• The south pole is stronger than the north pole.

What do the lines around this magnet represent?

• North Pole

• South Pole

• Magnetic Field