13 terms

Conceptual Physics - Chapter 3 - Newton's First Law of Motion

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First law
Every object continues in its state of rest, or uniform speed in a straight line, unless acted on by a non-zero force
Second law
The acceleration produced by a net force on an object is directly proportionate to the net force is in the same direction as the net force and is inversely proportional to the mass of the object
Third law
When one object exerts a force on a second object, the second object exerts an equal and opposite force on the first
Rule of adding/subtracting vectors?
Add if in same parallel direction
Subtract if in opposite direction
Greater mass = ....... acceleration
small
Smaller mass = ...... acceleration
large
Acceleration =
net force / mass

A = f/m
Weight =
Mass * Gravity
Friction
Force that acts between materials that touch as they move past each other.
Kilograms
The SI unit to measure mass.
Mass
How much "stuff" there is in an object.
Weight
The force of gravity on an object.
Newton
The SI unit for force.
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