Forces and Newton's Laws

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

• Newton's 1st Law
• Newton's 2nd Law
• Newton's 3rd Law
• Newton's 4th Law

Force = Mass x Acceleration

• Newton's 1st Law
• Newton's 2nd Law
• Newton's 3rd Law
• Newton's 4th Law

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

• inertia
• force
• acceleration
• velocity

Any push or pull on an object.

• force
• velocity 
• inertia
• momentum

The force that opposes motion between two surfaces in contact with each other.

• inertia
• friction
• momentum
• gravity

A force that opposes motion between a surface in contact with the atmosphere.

• air resistance
• gravity
• momentum
• terminal velocity

The combination of all the forces acting on an object is the...

• net force
• action force
• reaction force
• balance force

When two equal forces act in opposite directions on an object, they are called ______________________.

• frictional force

• balanced force

• centripetal force

• gravitational force

When an unbalanced force acts on an object, the force ______________________.

• changes the motion of the object

• is cancelled by another force

• does not change the motion of an object

• is equal to the weight of the object

An automobile you are riding in suddenly stops, but you continue to go forward.

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