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Coulomb's Law Honors

Last updated over 1 year ago

6 questions

Instructions

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Question 1

1.

What is the repulsive force between two pith balls that are 8.00 cm apart and have equal charges of – 30.0 x 10-9 C

Question 2

2.

How strong is the attractive force between a glass rod with a 0.700 x 10 -6 C charge and a silk cloth with a –0.600 x 10-6 C charge, which are 12.0 cm apart, using the approximation that they act like point charges?

Question 3

3.

If two equal charges each of 1 C each are separated in air by a distance of 1 km, what is the magnitude of the force acting between them? You will see that even at a distance as large as 1 km, the repulsive force is substantial because 1 C is a very significant amount of charge.

Question 4

4.

How far apart must two point charges of 75.0 x 10-9 C (typical of static electricity) be to have a force of 1.00 N between them?

Question 5

5.

Two point charges exert a 5.00 N force on each other. What will the force become if the distance between them is increased by a factor of three?

Question 6

6.

Two point charges are brought closer together, increasing the force between them by a factor of 25. By what factor was their separation decreased?