Forces

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 SI unit used to measure weight? 
*remember the definition of weight! 

• Grams 
• Liters
• Pounds 
• Newtons 

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 on an NON- moving object.

• Static friction 
• Fuild friction 
• Rolling friction 
• Sliding 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

Friction is a force that acts in a direction ___________ of movement.

• similar

• opposite

• parallel

• perpendicular

What are the units on the coefficient of friction?

• none
• Newtons
• meters
• kilograms

What is the force of friction between a 950-N block of ice and the horizontal ground if μ = .12?

• 65 N

• 226 N

• 175 N

• 114 N

What is the coefficient of static friction if it takes 44 N of force to move an 86-N box on a horizontal surface?

• 0.78

• 0.51

• 0.78 N

• 0.58 N

Friction is a __________

• Contact force

• Non-contact force

• Magnetic force

• Electric force