Electrostatic Forces

Question 1

Charge of an Electron

Answer 1

1.6x10^-19

Question 2

What is the inverse square law?

Answer 2

F = 1/r^2

Question 3

What is force proportional to?

Answer 3

F = Q1Q2

Question 4

What is Coloumb’s Law? (Calculate the force between two charges)

Answer 4

F = KQ1Q2 / r^2

Question 5

What is the Electric Field Strength?

Answer 5

F/q OR KQ/r^2 or V/D

Question 6

What is the electric field strength in a uniform field?

Answer 6

Change in voltage / distance
V/D

Question 7

What are the units for electric field strength?

Answer 7

Vm^-1 or NC^-1

Question 8

How do particles accelerate in a uniform field?

Answer 8

Negative - Opposite Direction
Neutral - Unaffected
Positive - Towards Field

Question 8

What does the area under a F/D graph represent?

Answer 8

The amount of Work Done

Question 8

What is Electric Potential?

Answer 8

V = KQ /r

Question 9

What is the gradient of the Potential Graph?

Answer 9

Electric Field Strength

Question 10

What is the equation for Work Done?

Answer 10

W=Q*Change in V

Question 11

What is an equipotential?

Answer 11

Two or more points which have the same potential