Physics
Weekly
Class
Pages 
Chapter
8: Rotational Motion
Physics
Marymount High School
a journey into the physical world! 
Physics Syllabus
Homework Chart



Office
Hours
Daily
Lunch in the Science Patio 
Cyber
Office Hours
First
Class Chat 

Chapter
Objectives:
 Distinguish
between rotate and revolve.
 Describe
rotational speed.
 Give examples
of centripetal force.
 Describe
the motion of an object if the centripetal force acting on it
ceases.
 Explain
why centrifugal force is "fictitious."
 Describe
how a simulated gravitational acceleration can be produced.
 •Define
and describe torque.
 Describe
the condition for one torque to balance another.
 Describe
center of gravity.
 Describe
center of mass
 Describe
how to find the center of gravity of an irregularly shaped object.
 Given the
location of the center of gravity of an object and the position
and direction of the forces on it, tell whether the forces will
produce rotation.
 Describe
on what the rotational inertia of an object depends.
 Define
angular momentum and describe the conditions under which it
(a) remains the same and (b) changes.
 Give an
example in which rotational speed changes but angular momentum
does not.

Chapter
Terms:
 tangential
speed
 rotational
speed
 rotational
inertia
 torque
 center
of mass (CM)
 center
of gravity (CG)
 equilibrium
 centripetal
force
 dentrifugal
force
 angular
momentum
 conservation
of angular momentum
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Chapter
Formulas:
Torque
= lever arm x force

Chapter
Outline Framework:
 Circular
Motion
 Rotational
Inertia
 Torque
 Center
of Mas and Center of Gravity
 Locating
the center of Gravity
 Stability
 Centripetal
Force
 Centrifugal
Force
 Centrifugal
Force in a Rotating Reference Frame
 Simulated
Gravity
 Angular
Momentum
 Conservation
of Angular Momentum
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