Forces and Gravity

Which of the following is considered a contact force?

• the force between two magnets

• the gravitational pull of a planet

• friction between an object and air

• the force between two charged particles

Friction is an example of a contact force between two surfaces that are touching.

• true

• false

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

You push on a tree with 20 N of force. If the tree doesn't move, the tree is pushing back on you with _____of force.

• 20N 

• 40N 

• 10N 

• 70N

Tags

NGSS.MS-PS2-1

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

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.HS-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

NGSS.MS-PS2-5

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

• weight

• force

• mass

• pounds

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.MS-PS2-2