Laws of Motion

What can a force do?

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

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

• the tree pushes against you

• the stick pushes against you
• you push against the stick
• the tree 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

An object will always move in the direction of the _______ force.

• larger 
• smaller 
• equal 

Which type of force(s) will cause a change in an object's motion?

• gravity
• speed
• balanced forces
• unbalanced forces