wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Coulomb´s law

Total questions: 10

Worksheet time: 17mins

Name
Class
Date
1.

Which two particles are attracted to each other?

a)

Two neutrons

b)

A proton and an electron

c)

Two protons

d)

An electron and a neutron

2.
When distance increases, electrostatic force ____________; we call this relationship ____________ proportional
a)
decreases;directly
b)
decreases;inversely
c)
increases;inversely
d)
increases;directly
3.
Find the magnitude of the force between two charges of 1.0 C each which are 1.0 meter apart?
a)
9E-9 N
b)
9E9 N
c)
1.1E10 N
d)
1.1E-10 N
4.

If one of the charges doubles, what happens to the force?

a)

it doubles

b)

it gets cut in half

c)

it quadruples

d)

it is cut by 1/4

5.

Which setup of charged particles shown below has the two exert the most force on one another?

a)
b)
c)
d)
6.

A point charge (q1) has a magnitude of 3x10-6 C. A second charge (q2) has a magnitude of -1.5x10-6 C and is located 0.12 m from the first charge. Determine the electrostatic force each charge exerts on the other.

a)

-4.52 x 10-3 N

b)

-83 N

c)

-2.81 N

d)

-9 x 103 N

7.

A 5 C and 8 C charge give off a force of 2.5 x 109 N. What is the distance between them?

a)

11 m

b)

12 m

c)

121 m

d)

144 m

8.

Two charges of equal magnitude give off a force of -441000 N when they are 1000 m away from each other. What are the charges magnitude?

a)

5

b)

7

c)

9

d)

11

9.

A typical lightning bolt has about 10.0 C of charge. How many excess electrons are in a typical lightning bolt?

a)

6 x 1019

b)

6 x 10-19

c)

6 x 1031

d)

6 x 10-31

10.

What would a negative value for Fe mean?

a)

The particles are moving away from each other

b)

The particles have the same charge

c)

The particles have opposite charges

d)

The particles are moving towards each other