Forces and Friction

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

• Mass and Distance 
• Mass and Matter
• Distance and Weight 
• Weight and Mass

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

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

How would the absence of friction affect a marble traveling on a long, straight path?

• The marble’s speed would decrease.
• The marble’s speed would increase.
• The marble would stop immediately. 
• The marble would remain at a constant speed.

Tags

NGSS.MS-PS2-2

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

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

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

• weight
• force
• mass
• pounds

Tags

NGSS.MS-PS2-4

What is the rate at which Earth's gravity accelerates objects in free fall?

• 9.8 m/s²
• 3.14159 km/hr/s
• 13.7 m/s²
• 42 km/h/s

Tags

NGSS.5-PS2-1