Magnetism Quiz

What is a permanent magnet?

• A magnet that only attracts iron

• A magnet that loses its magnetism over time

• A magnet that can be turned on and off

• A magnet that requires a power source to function

What are the two poles of a magnet?

• North and South

• Positive and Negative

• East and South

• North and West

What type of charges attract one another?

• Negative and Negative

• Positive and Positive

• Neutral and Positive

• Positive and Negative

What type of charges repel one another?

• Positive and Positive

• Negative and Negative

• Neutral and Negative

• Positive and Negative

Define electromagnet.

• A magnet with fixed poles

• A magnet that loses its magnetism over time

• A magnet that requires a power source to function

• A magnet that does not attract iron

How can strength be increased in an electromagnet?

• By cooling it down

• By decreasing the number of coils

• By demagnetizing it

• By increasing the current flowing through the coils

What type of magnet needs a power source?

• Temporary magnet

• Electromagnet

• Permanent magnet

• Natural magnet

What type of magnet is natural?

• Permanent magnet

• Temporary magnet

• Electromagnet

• Natural magnet

What type of magnet can be turned on and off?

• Temporary magnet

• Electromagnet

• Permanent magnet

• Natural magnet

Describe how distance affects magnetic fields.

• Magnetic field strength increases as distance increases

• Magnetic field remains constant with distance

• Magnetic field strength decreases as distance decreases

• Magnetic field strength decreases as distance increases