Lessons on Forces

What is the formula for force?

• Mass x Distance
• Time x Mass
• Acceleration x Time
• Acceleration x Mass

What is the SI unit measured for the strength of a force?

• cm
• N
• lbs
• P

True or False? The arrow points in the direction of the force.

• False
• True

A nonzero force causes a ________ in the object's __________

• motion; mass
• change; mass
• mass; motion
• change; motion

When forces act in _______ directions, the net force is in the same direction as the ______ force.

• similar; smaller
• similar; larger
• opposite;larger
• opposite; smaller

What is the net force?

• 500 N up arrow
• 500 N down arrow
• 1000 N up arrow
• 1000 N down arrow

What is the simple meaning of force?

• It is push or pull
• It is just push
• It is just pull
• A power 

A force is described by its _______ and ________ in which it acts

• velocity; motion
• strength; direction
• direction; strength
• motion; distance

True or False? The SI unit (N) was named after the scientist Dr. John Nigh

• False
• True

What is net force?

• When a force has a set of newtons
• When the force is involved with a net
• When one force acts on an object
• When more than one force acts on an object