COULOMB'S LAW

The law relating force between electrical charges and their separation is Gilbert's Law.
True
False

False

When two similar charges are moved closer together, the force of repulsion increases.
True
False

True

In general, forces between objects will increase as the objects are separated.
True
False

False

Coulomb's law states the relationship between charges, their separation, and the force between them.
True
False

True

Coulomb's law predicts attraction between two unlike charges.
True
False

True

The attraction will vary directly with the separation between the charges.
True
False

False

Given: Q1 = +20 µc = 2.0 x 10-5 CQ2 = +30 µc = 3.0 x 10-5 C
K = 9.0 x 109 N·m2/C2r = 3.0 m
Determine F.
_____ N
6.7 x 10 -11
1.8
2.0 x 10 -10
0.60

0.60

Given: Q1 = +10 µc = 1.0 x 10-5CQ2 = -15 µc = -1.5 x 10-5 C
K = 9.0 x 109 N·m2/C2r = 6.0 m
Determine F.
_____ N
-2.5
-0.23
-0.42
-0.038

-0.038

Like-charged bodies, when brought closer together, will:
repel more strongly
attract more strongly
be neutralized
repel less strongly

repel more strongly

"Influence" between bodies is reduced as the bodies are:
increased in charge
brought closer
held stationary
moved farther apart

moved farther apart

The law of repulsion by Coulomb agrees with:
Newton's laws of motion
the findings of Gilbert
Newton's law of gravity
the direct-square law

the findings of Gilbert

Coulomb's law applies to:
charge motion
like charges and unlike charges
gravitational fields
moving objects

like charges and unlike charges