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Eighth Grade (Grade 8) Magnetism and Electricity Questions

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Grade 8 Magnetism and Electricity
Earth's magnetic field has
  1. an east and west pole.
  2. a north and south pole.
  3. a never changing field.
  4. none of the above
Grade 8 Magnetism and Electricity
The diagram shows the magnetic field lines for a bar magnet. Which statement best describes the strength of the magnetic field for the bar magnet?
Magnetic Lines Of Forces
  1. The magnetic field is strongest at north pole of the magnet.
  2. The magnetic field is strongest at the south pole of the magnet.
  3. The magnetic field is strongest at both the north and south poles.
  4. The magnetic field is strongest in the region between the north and south poles.
Grade 8 Magnetism and Electricity
In a circuit schematic, this symbol would represent a(n)                        .
Switch Open
  1. open switch
  2. closed switch
  3. fluorescent light bulb
  4. incandescent light bulb
Grade 8 Magnetism and Electricity
Which of the following best describes the circuit diagram?
Series Circuit
  1. open circuit in series
  2. closed circuit in series
  3. open circuit in parallel
  4. closed circuit in parallel
Grade 8 Magnetism and Electricity
Grade 8 Magnetism and Electricity
Which statement is true about this symbol when used in a circuit drawing?
Switch Closed
  1. the switch is open and electricity can flow through the circuit
  2. the switch is open and electricity cannot flow through the circuit
  3. the switch is closed and electricity can flow through the circuit
  4. the switch is closed and electricity cannot flow through the circuit
Grade 8 Magnetism and Electricity
Grade 8 Magnetism and Electricity
Grade 8 Magnetism and Electricity
Which statement is true about this symbol when used in a circuit drawing?
Switch Open
  1. the switch is open and electricity can flow through the circuit
  2. the switch is open and electricity cannot flow through the circuit
  3. the switch is closed and electricity can flow through the circuit
  4. the switch is closed and electricity cannot flow through the circuit
Grade 8 Magnetism and Electricity
What does the A in the circle best represent in the circuit schematic?
Schematic of a Circuit
  1. a device that lights up in the circuit
  2. a device that resists electrical current
  3. a device that opens or closes the electrical circuit
  4. a device that measures the electric current of the circuit
Grade 8 Magnetism and Electricity
Grade 8 Magnetism and Electricity
Grade 8 Magnetism and Electricity
Which statement is true about the circuit diagram?
Series Circuit
  1. It is in series and the current flows clockwise.
  2. It is in parallel and the current flows clockwise.
  3. It is in series and the current flows counterclockwise.
  4. It is in parallel and the current flows counterclockwise.
Grade 8 Magnetism and Electricity
Grade 8 Magnetism and Electricity
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