Verify coulomb's law.

This essay hasn't yet been marked by one of our teachers

You can view all our essays on Mechanics & Radioactivity that have been Marked by Teachers

The first 200 words of this essay...

Coulomb's law lab

Objective: to verify coulomb's law

Materials:

String

Wool cloth

Plastic ruler

Box

2 Graphite balls, one attached to the string

Procedures:

1. measure the mass of the graphite ball which is attached to the string

2. put the ball in the box with the string attached with the box, measure the distance from the top of the box where the string is attached, to the hanging ball, also measure the horizontal position of the ball

3. rub the ruler with the wool cloth so that it is charged

4. use the ruler to touch the other ball which is attached to a holding tool, so it gets charged

5. place the charged ball into the box, until that it touches the ball in the box

6. the balls will then repel, record the distance of the repulsion, the distance is measured from the center of the ball to the center of the other ball

7. To record the distance, one sees the scale through the transparent glass, and should not see the image of the ball in the mirror

8. repeat