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Inverse Square Laws

Inverse Square Laws. Gravity and Electric Force. Coulomb’s Law. q 1 q 2 r 2. F e = k. the force between two charges depends on: the size of the charges. Bigger charges will have a bigger force (directly proportional) the distance between them… Inverse square law.

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Inverse Square Laws

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  1. Inverse Square Laws

    Gravity and Electric Force
  2. Coulomb’s Law q1q2 r2 Fe= k the force between two charges depends on: the size of the charges. Bigger charges will have a bigger force (directly proportional) the distance between them… Inverse square law. k is the constant k = 9 x 109 Nm2/C2
  3. Inverse Square Law m1m2 r2 q1q2 r2 Fg= G Fe= k Similarities? Differences?
  4. Inverse square law q1q2 r2 m1m2 r2 Fe Fg F: directly proportional to the masses/charges Inverse square to the radius (distance between masses/charges)
  5. Inverse square law q1q2 r2 m1m2 r2 Fe Fg So if we double one mass/charge the force would…… x2 (double) If we quadruple one mass/charge the force would….. x4 (quadruple) If we double the radius the force would be…… x1/4 If we triple the radius the force would be……. x1/9 If we half the radius the force would be……. x4
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