Exam 8 Numbers 11-15 Preap

5 Questions | Total Attempts: 94

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Exam 8 Numbers 11-15 Preap

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Questions and Answers
  • 1. 
    11. Which of the following statements correctly describes the behavior of magnets?
    • A. 

      A. Like poles attract each other, and unlike poles repel each other.

    • B. 

      B. Like poles repel each other, and unlike poles attract each other.

    • C. 

      C. Both like and unlike poles can attract and repel each other depending on the surrounding materials.

    • D. 

      D. none of the above

  • 2. 
    12. Which of the following statements about magnetic fields, B, is not true?
    • A. 

      A. Magnetic fields are vector quantities.

    • B. 

      B. Magnetic fields have both magnitude and direction.

    • C. 

      C. Magnetic field strength increases as the distance from the magnetic source increases.

    • D. 

      D. Magnetic fields are regions in which magnetic forces can be detected.

  • 3. 
    13. How is the direction of a magnetic field, B, defined at any location?
    • A. 

      A. the direction toward which the south pole of a compass needle points

    • B. 

      B. the direction toward which the north pole of a compass needle points

    • C. 

      C. the direction that is parallel to the imaginary magnetic field lines

    • D. 

      D. the direction that is perpendicular to Earth’s magnetic field

  • 4. 
    14. Since more magnetic field lines cross the area that is near the pole of a magnet, what does this indicate about the magnetic field strength in that location?
    • A. 

      A. It is stronger.

    • B. 

      B. It is weaker.

    • C. 

      C. It is entering the magnet.

    • D. 

      D. It is leaving the magnet.

  • 5. 
    15. Which of the following statements about magnetic field lines is not true?
    • A. 

      A. Magnetic field lines form open or closed loops.

    • B. 

      B. Magnetic field lines appear to begin at the north pole of a magnet.

    • C. 

      C. Magnetic field lines have no beginning or end.

    • D. 

      D. Magnetic field lines appear to end at the south pole of a magnet.

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