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Magnetism & Electromagnets Chapter Exam

Exam Instructions:

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

Page 1

Question 1 1. How is the magnetic field generated by an electromagnet affected by the amount of current flowing in the wire?

Question 2 2. What is the one thing without which an electromagnet will not work?

Question 3 3. Which of the following would increase the strength of an electromagnet?

Question 4 4. Which of the following is NOT an application of electromagnets?

Question 5 5. Who first discovered that an electric current creates a magnetic field?

Page 2

Question 6 6. Increasing the current through a wire:

Question 7 7. The strength of an electromagnet can be:

Question 8 8. All magnetic fields are created by:

Question 9 9. To create a magnetic field, a charged particle must be:

Question 10 10. A ferromagnetic core:

Page 3

Question 11 11. Which of the following is NOT an application of electromagnets?

Question 12 12. Which of the following is the definition of a solenoid?

Question 13 13. Which of the following explains how electromagnet solenoids work?

Question 14 14. Which of the following is NOT a use for solenoids?

Question 15 15. Which of the following describes a microphone?

Page 4

Question 16 16. The mechanism that generates Earth's magnetic field is called the ______.

Question 17 17. At Earth's north magnetic pole, ______.

Question 18 18. Where in the planet is the magnetic field produced?

Question 19 19. Over time, the earth's magnetic poles will ______.

Question 20 20. What is the difference between the geomagnetic poles and Earth's magnetic poles?

Page 5

Question 21 21. A material is ferromagnetic if:

Question 22 22. Magnetic domains are:

Question 23 23. The direction of a magnetic field is:

Question 24 24. The spacing of the field lines:

Question 25 25. A magnetic field line:

Magnetism & Electromagnets Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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