Laws of motion
friction
gravity
mass
100

who created the laws of motion 

Isaac Newton 

100

why is ice slippery

friction

100

who has more gravity. Mars,Jupiter,Earth.

Jupiter 

200

which law is this: an object in motion will stay in motion

the first law of motion

200

why does your car move

friction against the tires on the road

300

what is the 3rd law of motion

every object has an equal force

300
what is the hardest kind of friction 

static friction

400

which law of motion is commonly associated with a baseball.

the 2nd law

400

why is friction so difficult

surface irregularities

400

who has more mass Caseoh or the sun

Caseoh

500

what is the formula for the 

f=ma

500

what is the calculated air friction on a boing 747 going at 3000

Idk

500

Can gravity form waves?

yes

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