Ch 11 Forces

Word for "push or a pull"

• gravity

• force

• acceleration

What are forces measured in?

• m/s

• velocity

• Newtons

Is weight proportional to mass?

• yes

• no

What force has to be overcome for an object to start moving?

• air resistance

• sliding friction

• static friction

What is the upward force on an object falling through air

• air resistance

• friction

• gravity

What would happen to a thrown ball if gravity didn't exist

• fall down

• continue traveling horizontally

• float midair

• continue traveling vertically

What force opposes motion?

• strength

• gravity

• friction

• direction

How are forces represented in pictures and diagrams?

• boxes

• arrows

• stars

Which is not a type of friction?

• static

• sliding

• fluid

• vector

"objects that have mass have a gravitational pull on each other" is the law of ....

• Universal gravitation

• Newtons 1st law

• Newtons 2nd law

• Newtons 3rd law