Lesson 2 - Distance, displacement, and coordinate systems:
[[Word[[ | [[Defination[[ |
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Coordinate Systems | Defines position and direction for positive and negative number |
Position | Location of an object relative to originSymbol “x“ refer to postion |
Displacement | Chnage in position of an object /\ x for displacement/\ = change |
Distance | Totale amount the object has moved Always a non-negative numberA scalar quantity with unit of distance |
Reference Frame | Point of view from which measurement can be made All frames of references are equally valid |
<<Formula<< | <<Symbol Meaning<< |
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/\x = x(f) - x(i) | /\x = displacementx(f) = final positionx(i) = inital position |
Lesson 3 - Average Velocity and Speed:
<<Formula<< | <<Defination of Symbols<< |
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Lesson 4 - Velocity and speed from graph
Instantaneous Velocity | Velocity at a given moment in timeSI units = m/s |
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Instantaneous Speed | Speed at a given moment in time Equal to the megnitude of the Intantaneous VelocitySI unites = m/s |
<<Formula<< | <<Defination of Symbols<< |
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Lesson 5 - Average and instantaneous acceleration
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<<Words<< | <<Defination<< |
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Avg. Acceleration | Rate at which velocity changes over a specified time intervalSI = m/s^2Vector Quantity |
Instantaneous acceleration | Rate at which velocity changes at a speific intant at time SI = m/s^2Vector Quantity |
<<Formula<< | <<Symbol Defination<< |
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Lesson 6 - Motion with constant Acceleration
<<Word<< | <<Defination<< |
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Kinematic Variable | Variable that describes the moition of an object over time Includes displacement “/\X”time interval “t”intial velocity “Vi”final velocity “Vf”acceleration “a” |
Kinematic Formula | formula that describe the relationships between Kinematic variable when accelaration is constant |
<<Formula<< |
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Symbols
Assumptions
When using kinematic formulas
Lesson 7 - Objects in freefall
<<Word<< | <<Definition<< |
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Acceleration due of gravity | In the absence of air resistance, all objects fall with constant acceleration “g“ toward the surface of the Earth. On the surface of Earth, defined ad g = 9.8 m/s^2 |
Annalyzing motion for objects in freefall
Example