Test Bank for College Physics 1 - Exam 2 (11th edition by Hugh D Young)

Test Bank for College Physics 1 - Exam
2 (11th edition by Hugh D Young)

1st Law of Motion - ANSLaw of Inertia

"An object at rest will remain at rest (and an object in motion will remain in motion) FOREVER
with constant velocity in a straight line unless that object is acted upon by a net unbalanced
force."

**Net balanced =

2nd Law of Motion - ANSLaw of Acceleration

"If a net unbalanced force acts on an object, the acceleration of that object is directly
proportional to the net force of that object, and the acceleration of that object is inversely
proportional to the mass."

** [A = net F / M] .... net F = MA **

3rd Law of Motion - ANSLaw of Action/Reaction

"For every action there is an equal (in magnitude) and opposite (in direction) reaction."

net F = MA - ANSnet F = sum of all forces (if there is a subscript on "F" then it means in that
specific direction)

M = mass

A = acceleration (usually -9.8)

Force - ANS"a push or pull" / labeled by Newtons (N)

2 kinds:
-contact force: force acting on something
-field force: force pushing down (Fw)

how to find the weight of an object - ANSFw = MG

to find the force of weight of an object, multiply the mass (in grams) by "G" (9.8)