Motion & Forces TEST REVIEW

What Unit do we measure Force in? 

• Newtons
• Joules
• Force
• Don't know

Which of Newton's laws is illustrated when a magician pulls a tablecloth out from under the dishes without disturbing them?

• first
• second
• third 
• fourth

You push on a tree with 20 N of force. If the tree doesn't move, the tree is pushing back on you with _____of force.

• 20N 
• 40N 
• 10N 
• 70N

a push or pull

• inertia
• force
• movment
• friction

What law of motion does this picture represent?

• Newtons 3rd law
• Newtons 4th law
• Newtons 1st law
• Newtons 2nd law 

Newton's third law states that any action will have a(n) _______ and ______ reaction

• Equal and similar
• Equal and opposite
• Equal and different
• Greater and opposite

The momentum of an object depends upon the object's ___________&_____________.

• size and shape

• mass and speed

• mass and veloctiy

• mass and energy

Determine the momentum of 1000-kg car moving northward at 20 m/s......... 

• 20000 N
• 20000 Joules
• 20000 Kg * m/s
• 20000 kg * m/s north

In any collision (crash) the ______ is ALWAYS constant

• Total Momentum
• total speed
• total Velocity
• Energy

When an object exerts a force on another object

• Non-Contact Force

• Momentum

• Contact Force

• Magnitude