Coulomb Quiz

Which of the following images represents the Coulomb force between two negatively charged particles?

• A

• B

• C

• D

Tags

NGSS.HS-PS2-4

Two particles are 15 meters apart. Particle A has a charge of 6.0 • 10^-4 C, and particle B has a charge of 5.0 • 10^-4 C. The resulting Coulomb force is 12 N. At the same distance, what combination of charges would yield the same Coulomb force?

• Particle A: 8.0 • 10^-4 C, and particle B: 3.0 • 10^-4 C

• Particle A: 12.0 • 10^-4 C, and particle B: 2.5 • 10^-4 C

• Particle A: 9.0 • 10^-4 C, and particle B: 8.0 • 10^-4 C

• Particle A: 9.0 • 10^-4 C, and particle B: 3.0 • 10^-4 C

Tags

NGSS.HS-PS2-4

While taking his clothes out of the dryer, Charles finds a sock clinging to his sweater. What is the best explanation for this common phenomenon?

• In the dryer, both the sock and the sweater lost electrons.

• In the dryer, both the sock and the sweater gained electrons.

• In the dryer, either the sock or the sweater gained electrons while the other item lost electrons

• The cause of static cling is an unsolved scientific mystery.

Tags

NGSS.HS-PS3-5

Which of the following graphs correctly represents the relationship between the Coulomb force and the distance between the charged particles?

• Graph A

• Graph B

• Graph C

• Graph D

Tags

NGSS.HS-PS2-4

Two charged particles are separated by a distance of 12 meters. The Coulomb force between them is 20 N. What will the Coulomb force be if the same particles are separated by a distance of 6 meters?

• 80 N

• 40 N

• 10 N

• 5 N

Tags

NGSS.HS-PS2-4

NGSS.HS-PS3-5