Science Chapter 3 Lesson

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Author:
catwomen1234
ID:
309801
Filename:
Science Chapter 3 Lesson
Updated:
2015-10-18 21:26:39
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science
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This test is on Tuesday of this week
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  1. The relationship between electricity and magnetism.  An electric current produces a magnetic field
    electromagnetism
  2. A coil of wire with a current.  By winding a wire with a current into many loops you strengthen the magnetic field in the center of the coil.
    solenoid
  3. A strong magnet that can be turned on and off.  It is a solenoid with a ferromagnetic core.
    electromagnet
  4. The ability to move an object over a distance.
    energy
  5. The energy associated with electric currents.
    electrical energy
  6. The energy an object has due to its movement or position.
    mechanical energy
  7. A device that measures small currents.  It is based on the rotation of a wire loop in a magnetic field.

    A) galvanometer
    B) electromagnetic induction
    C) electrical energy
    D) electromagnet
    A) galvanometer
    (this multiple choice question has been scrambled)
  8. A device that uses an electric current to turn an axle.  It transforms electrical energy into mechanical energy.

    A) electric motor
    B) mechanical energy
    C) alternating current
    D) electromagnetic induction
    A) electric motor
    (this multiple choice question has been scrambled)
  9. Generating an electric current from the motion of a conductor through a magnetic field.

    A) electromagnetic induction
    B) solenoid
    C) electromagnetic induction
    D) transformer
    A) electromagnetic induction
    (this multiple choice question has been scrambled)
  10. A current consisting of charges that flow in one direction only.

    A) electrical energy
    B) step-up transformer
    C) direct current
    D) step-down transformer
    C) direct current
    (this multiple choice question has been scrambled)
  11. A current consisting of charges that move back and forth in a circuit.

    A) electrical energy
    B) alternating current
    C) step-down transformer
    D) direct current
    B) alternating current
    (this multiple choice question has been scrambled)
  12. A device that transforms mechanical energy into electrical energy.  It uses motion in a magnetic field to produce an electric current.

    A) electromagnetic induction
    B) electromagnet
    C) electric generator
    D) electric generator
    C) electric generator
    (this multiple choice question has been scrambled)
  13. A device that increases or decreases voltage.  It consists of two separate coils of insulated wire wrapped around an iron core.

    A) step-up transformer
    B) electromagnet
    C) alternating current
    D) transformer
    D) transformer
    (this multiple choice question has been scrambled)
  14. A transformer that increases voltage.  The secondary coil has more loops than the primary coil.

    A) step-up transformer
    B) direct current
    C) electromagnetic induction
    D) alternating current
    A) step-up transformer
    (this multiple choice question has been scrambled)
  15. A transformer that decreases voltage.  The primary coil has more loops than the secondary coil.

    A) step-down transformer
    B) solenoid
    C) mechanical energy
    D) galvanometer
    A) step-down transformer
    (this multiple choice question has been scrambled)
  16. hi

    A) electromagnet
    B) step-up transformer
    C) hi
    D) galvanometer
    C) hi
    (this multiple choice question has been scrambled)

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