Newton's Second Law

An object's velocity can be changed by changing its speed, its direction, or both.

• True
• False

A change in velocity over time is called ___________.

• speed
• force
• acceleration
• direction

According to __________, the acceleration of an object is equal to the net force acting on the object divided by the object's mass. 

• Newton's Second Law
• Newton's Third Law
• Newton's First Law

Newton's second law of motion describes acceleration as force divided by __________.

• mass
• inertia
• speed
• direction

If a net force acts on a moving object in the direction that the object is moving, the object will slow down.

• True
• False

What happens when unbalanced forces act on an object at rest?

• the object remains at rest
• the object begins moving in an unpredictable direction
• the object begins moving in the direction of the net force
• the object begins moving opposite to the direction of net force

What is the net force?

• 40 N left
• 0 N Balalnced
• 400 N right
• 40 N right

20 N is the

• mass
• weight
• force
• acceleration 

What is the net force?

• 40 N left
• 0 N Balalnced
• 400 N right
• 40 N right

What is a Balanced Force?  Two objects where...

• They both have equal force 
• One has more force than the other
• Both have no force
• One has more gravity than the other