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# Parameters and their Relationships

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## Jamie Y.

on 5 March 2014

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#### Transcript of Parameters and their Relationships

Parameters and Their Relationship
Displacement
How far apart two points or places are
Velocity
How fast one travels a given displacement in a given amount of time
Described by a number and a direction
V= displacement/ time
Units: (Length/ time)
m/s
mi/s
in/min
ft/yr
Momentum
How hard it would be to stop something
The product of an object's mass and velocity
momentum= mass * velocity
Units: (mass*velocity)
kg*m/s
g*mi/hr
mg*ft/min
Acceleration
How quickly velocity changes at a give time
Quantity described by a number and direction
Acceleration= velocity/ time
Units: (velocity/time)
m/s^2
in/min^2
ft/ hr^2
cm/s^2
Force
A push or pull that acts on an object and can accelerate objects by changing the object's speed or direction
Represented by a number and a direction
Force= mass* acceleration
Units: (mass* acceleration)
Newtons (N)
kg* m/s^2
g* mi/min^2
kg* m/hr^2
Over time
Times mass
Over time
Times mass
Pressure
The result of a force distributed over an area
Pressure= force/area
Unit (P= force/ area)
N/m^2
N/in^2
N/cm^2
N/ft^2
Divided by area
Times distance
Work
For a force to work on an object, same of the force must act in the same direction
no movement, no work
Work= force * distance
Units (Work= force* distance)
Joules (J)
N*m
(g*mi/min^2)ft
(kg*m/hr^2)yrd
Power
Power is the rate of doing work
to increase power you can
increase amount of work
same work in less time
Power= work* time
Unit (Power= work*time)
Watts (W)
J/s
J/min
J/hr
Over time
By: Jamie-Lynn Yumul
Full transcript