Term
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Definition
| Steady motion: relates distance and time |
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Term
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Definition
| Accelerated motion: relates velocity as a function of time |
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Term
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Definition
| Accelerated motion: relates displacement as a function of time |
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Definition
| Accelerated motion: relates velocity to displacement (no information on time) |
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Term
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Definition
| Relates acceleration to the amount of unbalanced force ("net force") |
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Term
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Definition
| Weight, how hard gravity pulls down on an object |
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Term
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Definition
| How hard gravity pulls downhill along an incline (btw, what is the similar equation for inclined normal force?) |
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Definition
| Universal Gravitation: how hard two masses pull on each other |
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Term
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Definition
| Amount of friction force is coefficent of fricton times normal force |
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Term
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Definition
| Elastic force is "spring constant" multiplied by amount of stretch or compression |
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Term
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Definition
| Motion along a circular (or curved) path requires unbalaned force; this is the amount of acceleration |
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Term
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Definition
| Relates the speed around a circle to the circumference and the period |
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Term
| F = mv2/r (just F =ma for a curve) |
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Definition
| Amount of ofrce needed to keep an object moving with speed "v" on a circular path of radius "r" |
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Term
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Definition
| Amount of energy gained/lost because a force acted on you ("work") |
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Term
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Definition
| Amount of energy possessed by a moving object ("kinetic energy") |
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Term
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Definition
| Amount of potential energy possessed by an object due to its elevation (gravitation PE) |
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Term
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Definition
| Amount of potential energy possessed by an elastic system that is stretched/compressed |
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Term
| FDx = ½ mv2, ½ k(Dx)2 = ½ mv2, etc |
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Definition
| Conservation of energy; a form of energy at the beginning can change to a different form at the end |
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Term
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Definition
| General definition o fpower (energy rate). Depending on situation it can be Ed/t mah/t or mv2/2t or mCDT/t etc. |
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Term
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Definition
| Power for a specific situation: energy rate required to maintain a steadt speed "v" against an opposing force "F" |
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Term
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Definition
| Momentum of a moving object |
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Term
p = h/l (Where l can equal c/f) |
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Definition
| Momentum of a photon (traveling at "c", the speed of light) depends on its wavelength; h is Planck's constant |
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Term
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Definition
| Force x time ("impulse") equals momentum change |
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Term
(m1v1 + m2v2)initial = (m1v1 + m2v2)final |
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Definition
| Conservation of momentum; use this when objects collide, or single objects separate into parts |
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Term
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Definition
| Density of an object or fluid |
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Term
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Definition
| Pressure is force applied over an area |
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Term
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Definition
| Relates pressure to how deep you are in a fluid |
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Term
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Definition
| Relates buoyant force to the amount of volume submerged in the fluid |
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Term
| v1A1 = v2A2 (vA equivalent to Volume/t) |
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Definition
| Relates how the speed and flow rate changes according to the cross-section area of the pipe |
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Term
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Definition
| Fluids moving at different speeds exert different pressures |
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Term
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Definition
| Force of attraction/repulsion between two charged objects (or "point charges") |
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Term
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Definition
| Force on a charged object depends on how much charge it has, and on the electric field surrounding it |
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Term
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Definition
| Electric potential near a charged object depends on the amount of charge and your distance from it. |
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Term
electric energy = q (V2 – V1) |
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Definition
| When a charged object moves, the energy gained/lost depends on the difference in potential ("voltage") |
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