Chapter 12 Forces and Motion

What is force?

• the push or pull on an object resulting from the objects interaction with another object.
• The motion an object creates
• The objects pushing one another
• the cieling

According to Newton’s first law of motion, a moving object that is not acted on by an unbalanced force will

• remain in motion.
• eventually come to a stop.
• change its momentum.
• accelerate.

Newton's 1st law is often called the _______.

• Newton's 2nd law
• action-reaction law
• law of equality
• law of inertia

Force is measured in _________________. 

• kilograms
• mass
• weight
• newtons

One ___________ is the force that causes a 1-kilogram mass to accelerate at a rate of 1 meter per second each second. 

• pound
• joule
• newton
• kilowatt

What is net force?

• The two forces combined
• When a force pulls or pushes to the right
• The overall force acting on an object.

The friction that keeps non-moving objects in place describes

• fluid
• rolling
• sliding
• static

The friction that occurs when a liquid or a gas opposes the motion of an object describes

• fluid
• rolling
• sliding
• static

The type of friction that occurs when two solid surfaces slip past each other describes

• fluid
• rolling
• sliding
• static

The type of friction that occurs when wheels or other round objects rotate over a surface 

• fluid
• rolling
• sliding
• static