Coulomb's Law

A 5 C and 8 C are 8 m apart. What is the force between them?

• 5.625 x 10⁹

• 5.625 x 10^-9

• 4.5 x 10¹⁰

• 4.5 x 10^-10

Tags

NGSS.HS-PS2-4

A charge of 3 C is 27 m away from another charge. They exert a force of -2.59 x 10⁸ N on each other. What is the 2nd charge?

• 5 C

• -5 C

• 7 C

• -7 C

Tags

NGSS.HS-PS2-4

According to Coulomb's Law, when the distance increases, the electrostatic force ____________.

• increases

• decreases

• remains unchanged

• has no relationship to distance

Tags

NGSS.HS-PS2-4

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

• it doubles

• it gets cut in half

• it quadruples

• it is cut by 1/4

Tags

NGSS.HS-PS2-4

Coulomb’s law states that the force between two charged objects will __________ when the magnitude (value) of the object’s charge increases.

• increase

• decrease

• stay the same

• first increase, then decrease

Tags

NGSS.HS-PS2-4

Coulomb's Law is __________ proportional.

• directly

• inversely

• polymetrically

• exponentially

Tags

NGSS.HS-PS2-4

What would a negative value for F_e mean?

• The particles are moving away from each other

• The particles have the same charge

• The particles have opposite charges

• The particles are moving towards each other

Tags

NGSS.HS-PS2-4

What kinds of particles do Coulomb's Law apply to?

• electrons

• protons

• neutrons

• neutral atoms

Tags

NGSS.HS-PS2-4

The variable "r" in Coulomb's Law would have what units?

• Joules

• Coulombs

• Newtons

• Meters

Tags

NGSS.HS-PS2-4

Which is the value of the constant in Coulomb's equation?

• k_e = 9·10^-9

• k_e = 9.8

• k_e = 6.67·10^-11

• k_e = 9 ·10⁹

Tags

NGSS.HS-PS2-4