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Eighth Grade (Grade 8) Science Questions

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Grade 8 Physics
According to Coulomb's Law, the electric force between two charged objects is directly proportional to                                        .
  1. the distance between them
  2. the square of the distance between them
  3. the sum of their charges
  4. the product of their charges
Grade 8 Physics
Objects become charged when they                       .
  1. gain or lose protons
  2. gain or lose neutrons
  3. gain or lose electrons
  4. gain or lose photons
Grade 8 Physics
Vehicles are manufactured with a heavy base to                               
  1. Increase weight
  2. increase the center of gravity
  3. decrease center of gravity
  4. increase acceleration
Grade 8 Physics
The polarization in the context of static electricity is                                              .
  1. the accumulation of charges on an object
  2. the separation of charges in an insulator
  3. the neutralization of charges on a conductor
  4. the process of discharging static electricity
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