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Newtons First Law:

1)With no force objects at rest______ while objects in motion_____.

2)Describe the Velocity.

3)And the acceleration
1)Law of Inertia: Objects at rest stay at rest while objects in motion stay in motion.

2)The velocity is constant as long as no forces act on on object. 

3)Acceleration = 0 = constant v = Fnet is zero
Newtons Second Law:

1) What is the formula for force? 

2) And its units?
1) Fnet = mass*acceleration where Fnet takes into account ALL of the forces acting on an object.

2)F measured in Newtons or kg*m/s2
Newtons Third Law:

1)action-reaction pairs

2)Are forces always equal? Masses? Accelerations?
1) Objects that act on each other have the same magnitude of force but in different directions.

2) Forces ARE equal. Masses CAN be difference, and accelerations CAN be different.
Fgrav

How are Fgrav and the radius related? 

Ho2 are Fgrav and masses related? 
G*(Mm/r2)

They are inversly proportional; follows the inverse-square law.

They are proportional
Comparing gravity on different planets
(gm/gM) = (mm/mM)*(rM/rm)2
Ffriction Kinetic

Ffriction,max Static - explain 'max'
Ffric = μkFN where FN is the normal force

Ffric,max = μsFN

When an object is stationary it takes a certain force to get it moving. If it takes something 100N to move and you only push 50N then the force exerted back on you is only 50N. Once you get it moving you use kinetic friction.
How does Normal Force change?

X and Y directions
When theta is used, either as an incline, or a rope used to pull something, etc then it changes FN to use mgsinθ
for the y direction and mgcosθ
for the x direction.
Incline problems:

1)Fgrav is changed to _____?

2)FN is changed to ______?
1)Fgrav = mgsinθ

2)FN = mgcosθ
 
x of y cards