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chapter 12 terms
terms
16
Biology
Undergraduate 3
11/01/2011

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Term
coefficient of friction
Definition
number that serves as an index of the interation b/w two surfaces in contact
Term
coefficient of restitution
Definition
number that serves as an index of elasticity for colliding bodies
Term
friction
Definition
force acting at the area of contact b/w two surfacesin the direction opposite that of motion or motion tendancy
Term
impact
Definition
collision characterized by the exchange of a large force during a small time interval
Term
impulse
Definition
product of a force and the time interval over which the force acts
Term
kinetic energy
Definition
energy of motion calculated as 1/2 mv^2
Term
kinetic friction
Definition
constant magnitude friction generated b/w two surfaces in contact during motion
Term
linear momentum
Definition
quantity of motion, measured as the product of a body's mass and velocity
Term
maximum static friction
Definition
maximum amount of friction that can be generated b/w two static surfaces
Term
normal reaction force
Definition
force acting perpendicular to two surface in contact
Term
perfectly elastic impact
Definition
impact during which the velocity of the system is conserved
Term
perfectly plastic impact
Definition
impact resulting in the total loss of system velocity
Term
potential energy
Definition
energy by virtue of a body;s position or configuration, calculated as the product of weight and height
Term
strain energy
Definition
capacity to do work by virtue of a deformed body's return to its original shape
Term
power
Definition
rate of work production, calculated as work divided by the time during which the work was done
Term
work 
Definition
in a mechanical context, force X by the displacment of the resistance in the direction of the force
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