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32 Cards in this Set
- Front
- Back
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Kinetic Energy |
Energy of motion= Mass and velocity
Formula= 1/2 mass x v^2 |
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Potential Energy |
Stored energy due to shape/positon |
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Elastic Potential Energy |
Object that is stretched or compressed |
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Gravitational Potential Energy |
Energy of an object due to height or position m*g*h |
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Mechanical Energy |
total of Potential and Kinetic Energy |
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Thermal Energy |
Internal energy due to Kinetic Energy |
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Sound Energy |
Vibrations |
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Law of Conservation of Energy |
States that Energy can't be destroyed or created. Only transferred into different forms. |
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Potential Energy Formula |
PE= m*g*h |
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Kinetic Energy Formula |
KE=1/2m*v^2 |
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Unbalanced Force |
An object pulled in a certain direction. |
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Balanced Force |
Objects that usually aren't in motion- still |
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Free Body Diagram |
Graphic demonstration of the forces acting on an object. |
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Equilibrium |
When opposing forces are equal |
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Static Friction |
Acts on stationary objects in contact with each other |
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Rolling Friction |
Weakest of the Frictions, example Wheels |
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Sliding Friction |
Acting on Surfaces sliding agains each other |
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Fluid Friction |
Air Resistance, example liquids or gas, swimming |
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Applied Force |
applied to an object by another person or object |
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Normal Force |
Support force exerted up an object in contact with another stable object |
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Tension Force |
Force transmitted through a string, rope, or wire when it is pulled tight by forces acting from each end. |
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Gravity
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On every object, pulling it down to the center of the earth |
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Air Resistance |
Fluid Friction |
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Terminal Velocity |
When air resistance quals the force of gravity |
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Newton |
SI unit of Force |
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Net Force |
Sum of all forces acting on an object |
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Inertia |
States that an object wants to continue what is is doing, like moving depends on mass |
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Momentum |
Motion, product of its mass and velocity |
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Newtons 1st Law of Motion |
The state of motion of an object does not change. If it isn't in motion it doesn't want to move. If it is in motion it wants to stay in motion |
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Newtons 2nd Law of Motion
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The acceleration of an object is equal to the net force acting on it. Throwing a ball harder and harder. Bigger mass = smaller acceleration and vice versa |
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Formula for Newtons 2nd Law of Motion |
F=m*a |
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Newtons 3rd Law of Motion |
Whenever one object exerts a force on a second object the second object exerts an equal and opposite force. Action & Reaction force. Basically how we do everything for example the force of walking, writing on paper, hammer nail ect. |
