Friction & Gravity

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

What is the force acting between any two objects in the known universe all the time?

• Gravitational Force 
• Force of Friction 
• Normal Force 
• Electromagnetic Force 

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

What is a friction force acting upon an object on wheels?

• Static 
• Sliding 
• Rolling 
• Fluid 

Pressing on the breaks when driving is an example of...

• sliding friction 
• static friction 
• rolling friction 
• fluid friction 

A force is...

• a push 
• a pull 
• a push or pull 
• a push or pull with a specific magnitude and direction 

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What type of fluid friction acts on an object moving through the air?

• Friction 
• Normal Force 
• Gravity 
• Air resistance 

Tags

NGSS.MS-PS2-2

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

• similar
• opposite
• parallel
• perpendicular

Which of the following is an example of rolling friction?

• pushing a box across the floor
• riding a bike down a hill
• a hockey player skidding to a stop
• a soccer player making a slide tackle 

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