Gravity and Friction

Friction is a force that acts in a(n) ___________ direction relative to a moving object.

• similar
• opposite
• parallel
• perpendicular

 What is the unit that measures force?

• Weight
• Net force
• Newton
• Kilogram

What type of friction acts on an object that is not yet moving?

• Static
• Dynamic
• kinetic
• Rolling

These swimmers are most likely experiencing _________.

• Rolling Friction
• Sliding Friction
• Fluid Friction
• Static Friction

Two factors effecting the magnitude of the force of gravity between 2 objects are...

• mass and distance 
• mass and volume
• distance and weight 
• weight and mass

Tags

NGSS.MS-PS2-4

As mass increases, what happens to the gravitational force?

• It increases.
• It decreases.
• It stays the same.
• It acts as a 3rd degree derivative function.

Tags

NGSS.MS-PS2-4

As the distance between 2 objects increases, what happens to gravitational force?

• It increases.
• It decreases.
• It stays the same.
• Only Mr. Silvio knows what will happen.

Tags

NGSS.MS-PS2-5

Which of the following will not change in different gravitational fields?

• weight
• force
• mass
• pounds

Tags

NGSS.MS-PS2-4

The force of gravity acting on an object is the object's ______.

• Mass
• Matter
• Weight 
• Terminal velocity 

Tags

NGSS.MS-PS2-4

Imagine you travel to another planets. What will change as you walk around the surface of the planet- your mass or your weight?

• Mass
• Weight 
• Both 
• Neither 

Tags

NGSS.MS-PS2-4