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Basics of Motion - Coggle Diagram
Basics of Motion
CONTACT FORCES
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Normal contact force
When you push on a table, your hand doesn't move through it.
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Friction
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Tiny bumps in the surface interlock (overlap or fit together). This creates a frictional force that opposes their motion
Tension
Tension is the pulling force that a string or cable exerts (creates) when something or someone pulls on it.
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SPEED
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Scalar quantities, like speed, do not have a direction
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ADDING VECTORS
To add vectors, draw each vector as an arrow one after the other.
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DISPLACEMENT
Displacement is the distance an object moves in a straight line from a starting point to a finishing point.
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DISTANCE TIME GRAPHS
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On a distance-time graph, motion (movement) at a constant speed is shown by a straight line.
If the line is horizontal, then the object is stationary.
SPEED TIME GRAPHS
Speed-time graphs have speed on the y-axis and time on the x-axis. Velocity-time graphs would simply have velocity on the y-axis instead of speed.
If an object’s speed is constant, then the speed-time graph will be horizontal.
If the object is not moving (is at rest), the graph will run along the x-axis because that is where y = 0.
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If the speed of an object increases with time, its graph will have a positive gradient.
If an object slows down, its graph will have a negative gradient.
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