Force

What is force?

• A push exerted on an object
• A push or pull exerted on an object
• A pull exerted on an object
• Nothing

combined forces that form a net force that is not zero

• Balanced

• Unbalanced

• Momentum

• inertia

combined forces form a net force of zero

• Balanced

• Unbalanced

• mass

• Weight

The tendency of an object to resist changes in its motion is...

• inertia
• force
• acceleration
• velocity

What is Newton's First Law

• F=ma
• Every action has an equal and opposite reaction
• An object at rest stays at rest, an object in motion stays in motion. 
• Friction 

For every action, there is an equal and opposite reaction.

• Newton's
  1st
  Law of Motion
• Newton's
  2nd
  Law of Motion
• Newton's
  3rd
  Law of Motion

a push or pull on an object by another object that is touching it

• contact force

• force

• friction

• noncontact force

a force one object can apply to another object without touching it

• contact force

• force

• mass

• noncontact force

the force that resists the motion of two surfaces that are touching

• momentum

• force

• mass

• friction

amount of matter in an object

• momentum

• force

• mass

• friction