Gravity Week 2

What is Coulombs Constant?

• 9x10^-11

• 9x10^9

• 6.67 x 10^-11

• 6.67 x 10^9

What is the unit for Gravity's Constant?

• N/kg^2
• N m^2/kg^2
• kg/m^2
• m/s^2

If I half the distance, what happens to the force?

• Double the force (2x)

• Quadruple the force (4x)

• Half the force (1/2x)

• Quarter the force (1/4x)

In order to have an electrostatic force, you need

• two objects with mass

• two objects with charge

• one object with mass

• one object with charge

What are the two most important things to Electrostatic Force?

• Mass and Distance

• Charge and Distance

• Force and Mass

• Mass and Charge

Is your weight going to change on the moon?

• Your weight is going to stay the same

• It is going to increase

• It is going to decrease

• We don't have enough information

What is the unit for charge?

• Kg

  (Kilograms)

• C

  (Coulombs)

• m/s

  (meters/second)

• N

  (Newtons)

If I triple the mass, what happens to the force?

• The force is multiplied by 3

• The force is multiplied by 9

• The force will multiply by 1/3.

  (Divide by 3)

• The force will multiply by 1/9.

  (Divide by 9)

Which Law deals with Electrostatic Force?

• Newton's Law of Universal Gravitation?

• Inverse Square Law

• Newton's 2nd Law

• Coulombs Law

Which would have more force?

Mass 1 Mass 2 Distance

A)300 kg 200 kg 10 m

B)300 kg 300 kg 10 m

C)300 kg 300 kg 2m

D)200 kg 300 kg 2m

• A

• B

• C

• D