Effects of Forces

The sum of all forces acting on an object= _______

• mass

• action / reaction force pair

• net force

• inertia

When forces act in opposite directions, the net force is found by ____________ the strengths of the forces.

• adding

• subtracting

• multiplying

• dividing

When forces act in the same direction, the net force is found by ____________ the strengths of the forces.

• adding

• subtracting

• multiplying

• dividing

"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

"An object in motion (or at rest) will to stay in motion (or at rest) until an outside force acts upon it."

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

What law is best described by inertia?

• 1st
• 2nd
• 3rd

A ____________ is a push or a pull on an object.

• friction
• force
• magnet
• gravity

What is the unit to MEASURE force?

• Kilogram
• Meter
• Pascal
• Newton

If these teams are pulling with the same amount of force what will happen?

• The boy in blue will win.
• They will not move at all.
• The boy in red will win.
• Both will fall down.