Forces final review

What is a force?

• push
• pull
• push or pull
• Neither one

If the forces on an object do not add up to zero, the forces are ____________________

• balanced
• equal
• unbalanced
• equilibrium

If the forces on an object add up to zero, the forces are ___________________

• equilibrium
• unbalanced
• balanced
• positive

What is the Net Force?

• 17 N Right
• 3 N Right
• 3 N Left
• 17 N Left

What is the Net Force?

• 5 N to the right
• 10 N to the right
• 15 N to the right
• 0 N

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

• Stay at rest
• Increase Velocity
• Decrease Mass
• Go to sleep

Which of the following shows the direction of the friction force?

• A
• B
• C
• D

An ice skater at rest pushes against a sled at rest, causing both the skater and sled to move away from each other with different accelerations. This is an example best described by

• Newton’s first law of motion for objects at rest.
• Newton’s first law of motion for objects in motion.
• Newton’s second law of motion. F=ma
• Newton’s third law of motion: Equal and opposite reaction

What is the unit measure of Force? 

• Meters/second² (m/s²)
• Joules (J)
• Meters (m)
• Newtons (N)

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