Magnets

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1. A magnet has a ________ and a ________pole.

• North and North
• South and South
• North and South

2. These two magnets are facing each other. Will they attract?

• No, because like poles are facing each other
• Yes, because opposite poles are facing each other

3. Mac wants to show his mom how to make a magnet float on a pencil. He slides a donut magnet onto his pencil. He is going to slide the second magnet down the pencil to show how it floats, but it ends up sticking to the first magnet. What should he do differently? Choose two correct answers.

• He should add an extra magnet on top of the others to make the force stronger
• He should flip the second magnet over so it will repel the bottom magnet
• He should quit and give up because this experiment isn't possible
• He should flip the bottom magnet over so that it will repel the top magnet
• He should flip the top magnet over so that it will attract the bottom magnet

4. There is a paper clip attracted to a magnet. The teacher removes the paper clip and the paper clip ends up attracting another paper clip without a magnet. How is this possible?

• The paper clip turned into a temporary magnet and has magnetism
• The paper clip turned into a permanent magnet and has magnetism

5. A student wants to make a Hot Wheel car move using two magnets. She ties one magnet to the top of the Hot Wheel car. She claims that she can make the car move using ONLY the second magnet. Which of the following statements supports that claim?

• By facing opposite poles and attracting the two magnets, the student will be able to move the car
• By facing like poles and repelling the two magnets, the student will be able to move the car
• By putting the second magnet on top of the magnet attached to the car, the car will move

6. Liberty wants to make a bulletin board that uses magnets to hold papers in place. What should Liberty use to make the bulletin board?

• A sheet of glass
• A wooden board
• A flat piece of steel
• A large cardboard square

7. In a mixture, a magnet is used to separate some particles from sand. The dark particles are MOST likely made of which element?

• Sodium
• Iron
• Sulfur
• Copper

9. A magnet attracts a lot of paper clips. What will MOST LIKELY happen if a piece of cardstock is put between the magnet and the paper clips?

• All of the paper clips will stay attracted to the magnet
• The magnet will attract fewer paper clips
• All of the paper clips will drop

10. Where is the magnetic field the strongest on a magnet?

• At the North and South poles
• In the middle of the magnet
• Only at the North pole
• Only at the South pole