Holcomb-Physics
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54 terms
Terms | Definitions |
|---|---|
 Force | ma |
| Velocity | a/t |
| Acceleration | f/m |
| Weight | mg |
| Work | F times d |
| momentum | m times v |
| Impulse | F times t |
| Kinetic Energy | 1/2mv² |
| Potential Energy | mgh |
| Pressure on a surface | f/area |
| Power | w/t |
| Centripetal Force | mv²/r |
| Torque | F times lever arm distance |
| Distance an object falls | 1/2mg² |
| Pressure in a fluid | ƿgh |
| Mechanical Advantage | F out/F in |
| Efficiency | w out/w in |
| Heat (temp change) | mcΔT |
| Heat (phase change) | mH |
| density | m/v |
| m | length-Q |
| s | time-Q |
| kg | mass-Q |
| N | weight-Q |
| N | Force-Q |
| kg/ m/s | Momentum-Q |
| K, C, F | Temperature-Q |
| m/s | Speed-Q |
| m/s² | Acceleration-Q |
| kg/ m/s | Impulse-Q |
| joules | Energy-Q |
| joule | Work-Q |
| watt | Power-Q |
| Pa | Pressure-Q |
| calorie | Heat-Q |
| kg/ mᶟ | Density-Q |
| mᶟ | Volume-Q |
| m² | Area-Q |
| no units | Coefficients-Q |
| N | Buoyancy-Q |
| Archimedes Principle | The relationship between buoyancy and displaced fluid: An immersed object is buoyed up by a force equal to the weight of the fluid it displaces |
| Bernoulli's Principle | The statement that the pressure in a fluid decreases as the speed of the fluid increases |
| Hooke's Law | The distance of stretch or squeeze (extension or compression) of an elastic material is directly proportional to the force applied |
| Universal Gravitation | For any pair of objects, each object attracts the other object with a force that is directly proportional to the product of the masses of the objects, and inversely proportional to the square of the distance between their centers of mass. |
| Inverse Square Law | A physical quantity varies inversely as another quantity squared. |
| Law of Conservation of Energy | Energy cannot be created or destroyed. It may be transformed from one form into another, but the total amount of energy never changes. |
| Law of Conservation of Momentum | In the absence of a net external force, the momentum of an object or system of objects is unchanged. |
| Law of Inertia | Every body continues in its state of rest, or motion in a straight line at constant speed, unless acted on by a nonzero force. |
| Newtons 1st Law | Law of inertia- Every body continues in its state of rest, or motion in a straight line at constant speed, unless acted on by a nonzero force. |
| Newtons 2nd Law | The acceleration produces by a net force on a body is directly proportional to ehe magnitude of the net force, is in the same direction as the net force, and is inversely propotional to the mass of the body. |
| Newtons 3rd Law | Whenever one body exerts a force on a second body, the second body exerts an equal and opposite force on the first |
| Newtons Law of Cooling | The rate of cooling of an object-whether by conduction, convection, or radiation-is approximately propotional to the magnitude of the net force, is in the same direction as the net force, and is inversely proportional to the mass of the body |
| Conservation of Angular Momentum | An object or system of objects will maintain a constant angular momentum unless acted on by an unbalanced external torque |
| Pascals Principle | Changes in pressure at any point in an enclosed fluid at rest are transmitter undiminished to all points in the fluid and act in all directions. |
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