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Ninth Grade (Grade 9) Magnetism and Electricity Questions

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Grade 9 Magnetism and Electricity
Electric current is measured in                .
  1. amperes
  2. watts
  3. meters
  4. inches
Grade 9 Magnetism and Electricity
Which of the following is a source of direct current?
  1. wall outlet
  2. battery
  3. bar magnet
  4. None of the above
Grade 9 Magnetism and Electricity
Which of the following always remains constant on a series circuit?
  1. current
  2. voltage
  3. resistance
  4. power
Grade 9 Magnetism and Electricity
Define conductor.
Grade 9 Magnetism and Electricity
Which of the following is the same everywhere on a series circuit?
  1. current
  2. voltage
  3. resistance
  4. power
Grade 9 Magnetism and Electricity
Electrical power is expressed in watts.
  1. True
  2. False
Grade 9 Magnetism and Electricity
The amount of energy per Coulomb of charge in a circuit is determined by what property?
  1. Current
  2. Resistance
  3. Voltage
  4. Power
Grade 9 Magnetism and Electricity
When one bulb goes out, the other bulbs remain lit in a(n)                 .
  1. open circuit
  2. closed circuit
  3. series circuit
  4. parallel circuit
Grade 9 Magnetism and Electricity
Which of the following is not a ferromagnetic material?
  1. Iron
  2. Boron
  3. Nickel
  4. Cobalt
Grade 9 Magnetism and Electricity
What type of current is commonly generated in U.S. power plants?
  1. Alternating Current
  2. Direct Current
  3. Magnetic Current
  4. All of the above
Grade 9 Magnetism and Electricity
Metals do not conduct heat and electricity.
  1. True
  2. False
Grade 9 Magnetism and Electricity
Which of the following would create voltage in a coil of wire?
  1. Spinning a coil of wire in a magnetic field
  2. Spinning a magnet in coil of wire
  3. Sliding a magnet back and forth in a coil of wire
  4. All of the above
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