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Definition
| An object in motion stays in motion at a constant speed unless other force is acting on it. |
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Definition
| The acceleration of a body is directly proportional to, and in the same direction as, the net force acting on the body, and inversely proportional to its mass. Thus, F = ma, where F is the net force acting on the object, m is the mass of the object and a is the acceleration of the object. F=M*A |
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Definition
| When one body exerts a force on a second body the second body exerts and opposite force of equal magnitude - for every action there's an equal and opposite reaction. |
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Definition
Amount of energy required to move mass over a certain distance.
W=F*D |
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Definition
Ability to do work
All matter has inherent energy. |
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Definition
Measure of how much fluid is flowing in given time.
Cubic metres per second: m3/sec |
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Term
| Hagen–Poiseuille equation: |
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Definition
ΔP=8ηlf / πr4
Where:
P= Pressure
η = Viscosity
l= Length
f= Flow
r= radius of tube.
Flow rate directly proportional to the 4th power of the radius, |
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Term
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Definition
Change direction of force
Amplify size of force
Increase size of movement |
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Term
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Definition
| Point around which lever moves |
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Term
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Definition
| Object / resistance that the lever moves / overcomes |
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Term
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Definition
| Force used to move the lever / load |
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Term
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Definition
| Fulcrum is between effort and load - seesaw |
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Term
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Definition
| Fulcrum / load / effort - Swing, wheelbarrow |
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Term
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Definition
| Fulcrum / effort / load - Elbow & knee joint. Mechanical *dis*advantage |
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Term
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Definition
| Distance between load and fulcrum |
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Term
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Definition
| Distance between effort and fulcrum |
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Term
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Definition
| Ratio of effort lever arm / load lever arm |
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Term
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Definition
| 2 opposing forces causing rotation |
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Term
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Definition
Moment arm x force
TM mass = F mass x D mass |
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