PHY 121 Test Questions with Verified Correct
Answers
Newton's 1st Law
(Law of Inertia) an object in motion tends to stay in motion & an object at rest stays at
rest unless acted upon by an outside force.
Newton's Second Law
F=ma
Newton's Third Law
For every action there is an equal and opposite reaction
Torque equation
T=Fr
Moment of Intertia for a ring
I=MR^2
Moment of Intertia for a sphere
I=2/5MR^2
momentum equation
p=mv
angular momentum formula
L=Iω
kinematics equations
Answers
Newton's 1st Law
(Law of Inertia) an object in motion tends to stay in motion & an object at rest stays at
rest unless acted upon by an outside force.
Newton's Second Law
F=ma
Newton's Third Law
For every action there is an equal and opposite reaction
Torque equation
T=Fr
Moment of Intertia for a ring
I=MR^2
Moment of Intertia for a sphere
I=2/5MR^2
momentum equation
p=mv
angular momentum formula
L=Iω
kinematics equations