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Eighth Grade (Grade 8) Magnetism and Electricity Questions

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Grade 8 Magnetism and Electricity
Would these magnets attract or repel?
  1. attract
  2. repel
Grade 8 Magnetism and Electricity
In what part of the magnet is the magnetic field the strongest?
  1. Middle of the magnet
  2. No where
  3. on the right
  4. Magnetic poles
Grade 8 Magnetism and Electricity
In what way does the force of friction act on an object?
  1. in the same direction as the force
  2. in a perpendicular direction to the force
  3. in the opposite direction of the force
  4. in any direction
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 statement about the total resistance of the circuit is true?
Series Circuit
  1. It is the same as the average resistance of any of the resistors.
  2. It is less than the resistance of any of the individual resistors.
  3. It is greater than the resistance of any of the individual resistors.
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
What equipment is used to test amperage?
  1. Ammeter
  2. Voltmeter
  3. Ohm Meter
  4. Conductivity Meter
Grade 8 Magnetism and Electricity
All charged objects exert forces on one another.
  1. True
  2. False
Grade 8 Magnetism and Electricity
In which direction do electrons flow?
  1. from positive to positive
  2. from negative to positive
  3. from negative to negative
  4. from positive to negative
Grade 8 Magnetism and Electricity
This diagram represents a series circuit.
Resistors in Parallel
  1. True
  2. False
Grade 8 Magnetism and Electricity
Ice skating is an example of what type of friction?
  1. rolling
  2. fluid
  3. static
  4. sliding
Grade 8 Magnetism and Electricity
Alessandro Volta invented the battery.
  1. True
  2. False
Grade 8 Magnetism and Electricity
What instrument is used to measure magnetic fields?
  1. mangnetogram
  2. sonar
  3. magnetometer
  4. field generator
  5. none of the above
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