## Newtons Laws

##### Created by:

jg11123  on January 28, 2009

##### Classes:

Weston High School

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# Newtons Laws

 Newtons 1st Lawan object at rest tends to stay at rest. an object in motion tends to stay in motion in a straight line at a constant speed until another force acts on the object
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#### Definitions

Newtons 1st Law an object at rest tends to stay at rest. an object in motion tends to stay in motion in a straight line at a constant speed until another force acts on the object
Inertia the tendency for an object to resist a chance in motion
AKA newtons 1st law law of inertia (AKA___)
Speed the distance an object travels per unit of time
Speed formula distance/time=_____ (((m/s mph)))
Velocity speed in a given direction EX: 50mph North
Acceleration a change in velocity... the rate at which velocity changes.... increasing speed, decreasing speed, or changing direction
Acceleration formula Final speed- Initial speed/time=______________
Deceleration slowing down
Mass the amount of matter in an object
force a push or a pull on an object
the two things that effect acceleration mass and force
Increased force= greater acceleration
Increased mass= lower acceleration
Newtons Second law How fast an object picks up speed (accelerates) or slows down (decelerates) depends on the amount of force used and on its mass
Newtons Second law mathematically F=MA.... Force=Mass * acceleration.... acceleration=force/mass
Newtons Third Law for every action there is an equal and opposite reaction
Average speed formula total distance/total time=_________
Static Friction friction that acts on objects at rest
Sliding friction occurs when objects slide over one another
Rolling Friction occurs when objects roll over one another
Fluid Friction occurs as an object moves through a fluid... air resistance

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