Gravitational and electric fields

Topics connected with fields

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  • Created by: jible
  • Created on: 09-06-09 14:22

1. Equipotentials .....

  • are not spherical
  • all the points in the field which have the same potential
  • are parellel to field lines
  • lose energy as you travel along a line of equipotential
  • have a positive value on the earths surface
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2. The formula for gravitational potential energy:

  • -GMm/r
  • GM/r^2
  • -GM/r

3. Geostationary satellites take 24 hours for one revolution:

  • True
  • False

4. Potential energy equation:

  • kQQ((1/r)/(1/r))
  • kQQ(1/r*1/r)
  • kQQ(1/r-1/r)
  • kQQ(1/r+1/r)

5. Coulomb's law for the electric force between two is:

  • -1/r^2
  • 1/r^2
  • 1/r
  • -1/r
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