Electric Current

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

• 11 m

• 12 m

• 121 m

• 144 m

Tags

NGSS.HS-PS2-4

Which two particles are attracted to each other?

• Two neutrons

• A proton and an electron

• Two protons

• An electron and a neutron

Tags

NGSS.HS-PS2-4

NGSS.HS-PS3-5

A point charge of +3.0 X 10^-7 coulomb is placed 2.0 X 10^-2 meter from a second point charge of +4.0 X 10^-7 coulomb. What is the magnitude of the electrostatic force on the charges?

• 6.0 X 10^-12 N

• 3.0 X 10^-10 N

• 5.4 X 10^-2 N

• 2.7 N

Tags

NGSS.HS-PS2-4

Coulomb's law says that the force between any two charges depends

• directly on the size of the charges

• inversely on the square of the distance between the charges

• both are correct

Tags

NGSS.HS-PS2-4

The process of transferring charge between objects by touching or rubbing

• charging by induction
• static discharge
• charging by contact
• proton

Electric charges that are alike _______ each other.

• Attract
• Repel

Tags

NGSS.HS-PS2-4

Which quantity and unit are correctly paired?

• electric field strength and N/C
• electricity and Coulombs
• electrostatic force and electrons
• electric field strength and E

Tags

NGSS.HS-PS2-4

At which point is the electric field the strongest

• A
• B
• C
• D

Tags

NGSS.HS-PS2-4

The electrical force between charges is strongest when the charges are

• close together
• far apart
•  the electric force is constant everywhere.
• there is no pattern

Tags

NGSS.HS-PS2-4

The Diagram depicts the 7 electrons and protons in a Nitrogen atom.

Describe how the Nitrogen become positively charged.

• Nitrogen gains electrons.

• Nitrogen loses electrons.

• Nitrogen gains protons.

• Nitrogen loses protons.