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Phyiscs
N/A
12
Physics
11th Grade
03/24/2010

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Term
scalar quantity
Definition
a quantity that has only size
Term
vector quantity
Definition
A quantity that has size and direction
Term
velocity
Definition
The ratio of change in position to time interval
Term
friction
Definition
Force opposing relative motion between two objects in contact
Term
static friction
Definition
Force opposing start of motion between two objects
Term
sliding friction
Definition
Force between two objects in relative motion
Term
coefficient of friction
Definition
Ratio between frictional force and normal force between two forces
Term
mass
Definition
The amount of matter in an object
Term
weight
Definition
The force of gravity on an object
Term
Newton's first law
Definition
An object with no net force applied to it will move at a constant velocity
Term
Newton's second law
Definition
Acceleration of a body is proportional to the force on it and is proportional to its mass
Term
Newton's third law
Definition
When an object puts force on the second object, the second object puts force on the force object that is equal in size but in opposite directions
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