Name________________________________  		Date ___________________
Period _____								Number ______

Unit 8-2-Notes
Newton’s Laws of Motion

I.	Newton’s 1st Law of Motion
a.	____________________________________________________________________________________________________________________________________________________________
b.	If something is moving it will keep moving unless ____________________________________________________________.
c.	It also means if something is just sitting there, it will just keep sitting there unless _______________________________________________________. 
d.	Sometimes Newton’s 1st Law of Motion is called the ____________________________________________________.
e.	Inertia is “the tendency of an object to ____________ being moved, or if the object is moving, to resist a change in speed or direction until an outside force acts on it.”
i.	Basically, all objects just want to keep doing whatever they are doing.
f.	Examples of forces acting on an object include:
i.	________________
ii.	Unbalanced force
iii.	Air resistance
iv.	________________
v.	Push/pull

II.	Newton’s 2nd Law of Motion
a.	____________________________________________________________________________________________________________________________________________________________
b.	More mass = ___________________ force to move or stop it.
c.	Less mass = ___________________ force to move or stop it.
d.	The formulas for Newton’s 2nd Law is ___________________
e.	This means that ___________________

Acceleration increases as mass decreases. (Less mass is easier to push)

Acceleration decreases as mass increases. (It’s harder to push something that has more mass). 

III.	Newton’s 3rd Law of Motion
a.	Whenever one object exerts a force on another object, the second object exerts an equal and opposite force on the first. 
b.	____________________________________________________________
_____________________________________________________________
c.	Example of Newton’s 3rd Law
i.	A spaceship launching.  The gas pushes down and the rocket ship blasts up with the same amount of force. 
ii.	Blowing up a balloon and letting it go.  The air pushes towards you and the balloon flies away from you with the same amount of force. 
d.	All forces act in _____________________________!
e.	Examples: 
i.	If I hit a ball, the ball will go flying. 
force pair - (ball and bat)
ii.	If I blow up a balloon and let it go. 
		force pair - (air pushing out and balloon)