Coulomb's Law

In the unit analysis of Coulomb's Law, what does the unit 'N' stand for?

• Newton

• Joule

• Coulomb

• Pascal

Tags

NGSS.HS-PS2-4

What does the magnitude of the electric force depend on?

• The sum of the charges

• The product of the charges

• The difference of the charges

• The ratio of the charges

Tags

NGSS.HS-PS2-4

Fill in the blank: Doubling one charge doubles the force; doubling both charges increases the force by ______ times.

• four

• two

• three

• five

Tags

NGSS.HS-PS2-4

Two charges, q1=-2C and q2=+3C, are placed 1.5 meter apart. What is the magnitude of the electric force between them? Use k=8.99x10⁹

Don't forget sig figs!

• 2.39x10¹⁰ N

• 2x10¹⁰ N

• -2.4x10¹⁰ N

• 4.5x10¹⁰ N

Tags

NGSS.HS-PS2-4

Two charges, q1=2.25 C and q2=3.15 C, exert a force of 7.25×10¹⁰ N on each other. What is the distance between them? You are solving for r!
Use k=8.99x10⁹Don't forget sig figs!

• .9 meters

• 1 meter

• .937 meters

• .879 meters

Tags

NGSS.HS-PS2-4

Two charges, q1=5. C and q2 are 2 meters apart. The electrical force between them is 1.12×10¹⁰ N. What is the magnitude of q2?
Use k=8.99x10⁹

Don't forget sig figs!

• 1 C

• 12C

• 88 C

• 4 C

Tags

NGSS.HS-PS2-4

Fill in the blank: Similar to the gravitational force that exists between two objects with mass, the _______ is the force between two objects with electrical charge.

• electric force.

• magnetic force.

• nuclear force.

• frictional force.

Tags

NGSS.HS-PS2-4

In the formula F = k * (|q1 * q2| / r^2), what does r represent?

• Electrostatic force in Newtons (N)

• Coulomb's constant

• Charges in Coulombs (C)

• Distance between the charges in meters (m)

Tags

NGSS.HS-PS2-4

The magnitude of the force depends on the amount of ______ on the objects and the distance between them.

• charge

• mass

• velocity

• temperature

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

Direction is determined by whether the charges ______ or ______ each other.

• attract, repel

• combine, separate

• merge, divide

• connect, disconnect

Tags

NGSS.HS-PS2-4

NGSS.HS-PS2-5

NGSS.HS-PS3-5