Coulomb's Law and Electric Fields

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

The Coulomb is the unit for:

• Charge

• Force

• distance

• Mass

Tags

NGSS.HS-PS2-4

What happens to the force between two charged objects when you double the distance between them?

• it doubles

• it is cut in half

• it quadruples

• it is cut by 1/4

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

What is the unit for electrostatic charge?

• Coulombs

• Newtons

• Meters

• Joules

Tags

NGSS.HS-PS2-4

A repulsive force exists between which two particles?

• Two neutrons

• An electron and a neutron

• An electron and a proton

• Two protons

Tags

NGSS.HS-PS2-4

As the value of r increases, what happens to the value of F?

• F increases

• F decreases

• F never changes, q does

• Cannot know from the information

Tags

NGSS.HS-PS2-4

Which of the following charges will attract each other?

• -4 μC & -5 μC

• 4 μC & 5 μC

• 4 C & 5 C

• -4 μC & 5 μC

Tags

NGSS.HS-PS2-4

NGSS.HS-PS3-5

How strong is the attractive force between a glass rod with a 0.700μC

charge and a silk cloth with a –0.600μC

charge, which are 12.0 cm apart, using the approximation that they act like point charges?

• -3.5 x 10^-2 N

• -263 N

• -0.263 N

• -3.5 x 10² N

• -0.315 N

Tags

NGSS.HS-PS2-4

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.

• -4.52 x 10^-3 N

• -83 N

• -2.81 N

• -9 x 10³ N

Tags

NGSS.HS-PS2-4