Electric Charge Problems

Label the parts of the formula for Coulomb's Law.

c

b

d

e

a

charge of object 1

charge of object 2

distance

electrostatic force

Tags

NGSS.HS-PS2-4

1. A particle with a charge of +2.4 μC is separated from another charged particle with a charge of –4.6 μC by a distance of 1.8 m. Find the electrostatic force between the particles.

• 0.100 N
• 0.031 N

• 0.075 N
• 0.012 N

Tags

NGSS.HS-PS2-4

1. A -4.4 uC charge exerts a repulsive force of 3 N on a second charge which is located a distance of 0.70 m away from it. What is the magnitude of the second charge?

• 17.1 uC

• 37.2 uC

• -37.2 uC

• -17.1 uC

1. Two conducting spheres have net charges of +3.0 μC and -9.0 μC and attract each other with a force of 0.20 N. How far apart are the spheres?

• 0.055 m

• 1.1 m

• 2.2 m

• 0.11 m

Tags

NGSS.HS-PS2-4

A 3.2 µC charge is subject to a 4.5 mN force due to an electric field. What is the magnitude of the electric field at the location of the charge?

• -703.56 N/C

• 703.56 N/C

• 140.625 N/C

• 1406.25 N/C

Tags

NGSS.HS-PS2-4

A 5.5 µC particle experiences an Electric Field of magnitude 6.2 x 10⁵ N/C.  What is the electric force on the charge?

• 3.41 N
• 2.75 N
• 4.10 N
• 5.50 N

Tags

NGSS.HS-PS2-4

NGSS.HS-PS3-5

What is the magnitude of the Electric Field at 0.075 m away from a -5.0 nC charge? 

• 1242 N/C

• 2823 N/C

• 9043 N/C

• 7991 N/C

Tags

NGSS.HS-PS2-4