1. The north and south pole between two magnets will .

2. Which of the following is the simple definition of a force?

• Colliding objects
• The pressure on an object
• A push or pull
• The energy in a field

3. If the two magnets increases the force between them .

4. The interaction between the north and south poles of a magnetic field are similar to in an electric field.

5. A magnetic force is different from a force like friction because the objects influenced by magnetic fields do not have to .

6. The battery in the gif is needed to produce a(n) that travels through the wires.

7. What could be changed about the setup in figure A to determine the magnetic poles on the iron nail?

• The type of nail that is used
• The size of the nail used
• Which side of the nail is facing the tube
• The length of the tube

8. Refer to figure A. Which of the following observations would you expect if the strength of the magnetic field was strong?

• A loud noise when the nail hit the metal
• The nail to not move
• The nail to move slowly through the tube
• The wire to disconnect from the battery

9. Which of the batteries in figure A would you expect to create the strongest magnetic field?

• All of them would create the same magnetic field
• Battery 3
• Battery 1
• Battery 2

10. If the spinning wire had more coils of wire, we would expect it have to . If the spinning wire has fewer coils of wire, we would expect it to have .

11. Explain the scientific reasoning that led you to make your hypothesis to explain what might happen if we flip the battery around.

12. Which of the following would cause the copper to spin faster?

• decreasing the distance between the copper and the charge
• increasing the distance between the copper and the charge
• increasing the size and mass of the copper
• reducing the charge by using a smaller battery

13. Which of the following questions would help to figure out what effect distance has on the movement?

• What changes will we see if we use a larger battery?
• What changes will we see if we move the magnet closer to the spinning circle?
• What changes will we see if we use a different kind of wire?
• What changes will we see if we move the battery farther away from the wood block?

14. The setup in figure A uses an electric current to generate a magnetic field. Your teacher asks you to come up with questions that could provide information about how changing a magnetic field affects an electric current. Which of the following questions would do this?

• Can the type of metal used in a circuit affect the attraction between magnets?
• Can a moving magnet cause a lightbulb to light up?
• Can the motion of a magnet be affected by batteries with different voltages?
• Are magnets attracted to the wires within a circuit?

15. A group of students watches the gif and conducts the experiment in figure A and wonders why their experiment didn’t use a magnet like the gif did. Which of the following questions could they investigate to better understand why?

• What happens if the magnet touches the copper wire?
• How is the circuit completed in the setup in the gif?
• Is the type of battery used in the gif the same as the experiment?
• Can a magnet move through the tube similar to the nail?

16. After conducting the experiment from figure A, students wonder how closely it relates to a real doorbell. What questions would they need to ask to get a better idea about how the two compare?

17. Your teacher asks you to compare the experimental setup in figure A to the setup in the gif. What questions would help figure out how the strength of the magnetic fields in each compare?

18. You and your lab partner are trying to get the nail to make a sound against a metal chime using the setup in figure A. You have everything set up, but nothing happens when you press the switch. Identify at least 2 questions that you could investigate to help you troubleshoot your experimental setup.

19. Which question would help us to determine the strength of magnetic fields that are present?

• What is the distance between the magnet on the bottom and the spinning wire?
• How many paper clips will the magnet on the bottom hold up?
• How many volts are passing through the spinning wire?
• How much does the magnet on the bottom weigh?

20. Which of the following questions would help to clarify the strength of the electric current that’s causing the movement?

• How does the size of the battery affect the coils of wire around the tube?
• How does the type of wire affect the coils around the tube?
• How does the size of the battery affect the motion of the nail?
• How does the motion of the nail relate to the copper wire?

21. Write a hypothesis to explain what might happen if we flip the battery around.

22. Which of the following questions could be answered with this experiment?

• How does the strength of a copper ring impact a battery?
• How does touch impact an interaction?
• How does the strength of a battery impact a copper ring?
• How does the speed of the copper ring impact the battery?