Laws of Motion

What can a force do?

• all of the above
• start a motion
• stop a motion
• change the direction of the motion

Friction and gravity are both examples of a force.

• True
• False

You hit a wall with a stick.  The equal but opposite reaction is _____

• the wall pushes against you
• the stick pushes against you
• you push against the stick
• the wall pushes against the stick

A person is pushed forward into their seat belt when a car stops quickly.  Which law is this?

• 1st
•  2nd
• 2 and 3
• 3rd 

An object at rest will _______ if no outside forces are applied.

• stay at rest
• increase velocity
• decrease mass
• fall to the ground

What is Newton's First Law?

• Object in motion stays in motion and an object at rest stays at rest unless acted on by a outside force
• Force = mass x acceleration
• For every action there is an equal and opposite reaction

What is Newton's Third Law?

• Object in motion stays in motion and an object at rest stays at rest unless acted on by a outside force
• Force = mass x acceleration
• For every action there is an equal and opposite reaction

What is the name for a push or pull?

• movement
• force
• speed
• density

Which has more Inertia? 

• truck
• ant
• cat
• skateboard

What pulls a ball back to earth?

• Momentum
• Gravity
• Friction
• Molecules