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Chapter 11: Rotational Mechanics Questions
Chapter 11 Rotational Mechanics Questions
18
Physics
11th Grade
12/27/2011

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Term
Lever Arm
Definition
d┴ between the axis and the force
Term
Rotational Inertia
Definition
reluctance of an object to change its state of rotation
Term
Torque
Definition
Fd┴, rotational analog of force
Term
Angular momentum
Definition
Product of rotational inertia and rotational velocity: L = Iw
Term
Rotational velocity
Definition
rotational speed w plus direction of motion, clockwise or counterclockwise
Term
Give the symbol for:
Angular momentum
Definition
L
Term
Give the symbol for:
Rotational velocity
Definition
w clockwise
Term
Give the symbol for:
Torque
Definition
T or M (Moment)
Term
Give the symbol for:
Rotational Inertia
Definition
I
Term
Give the symbol for:
Linear Momentum
Definition
p
Term
Give the units for:
Angular momentum
Definition
L = Iw = cmr2w = kg m2 rev/sec
Term
Give the units for:
Rotational inertia
Definition
I = cmr2= kgm2
Term
Give the units for: Linear momentum
Definition
p=mv=kg m/s
Term
Give the units for:
Torque or Moment
Definition
T=Fd=Nm
Term
Give the equation for: Torque or Moment
Definition
T=Fd
Term
Give the equation for: Linear momentum
Definition
p = mv
Term
Give the equation for: Law of conservation of angular momentum
Definition
Iw=Iw
Term
The law of inertia is: A body in motion tends to stay in motion. What is the law of inertia for rotation?
Definition
Rotating objects tend to stay rotating
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