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15 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Velocity vs speed |
Speed: rate at which object moves , v: speed and direction |
S= d/t = unit of m/s. V= 10 m/s , due east |
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Acceleration |
Any change in velocity. Incl. Speed or direction |
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Momentum |
Mass x velocity. Net force changes momentum ( acceleration / velocity ) |
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Angular momentum |
Rotational momentum of a spinning or orbiting object |
Mass x velocity x distance from center of motion |
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First Newton law |
Objects in motion stays in motion unless acted upon |
Law of inertia |
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Second Newton law |
F= ma , a= F/m |
Force = mass x accel. , force = rate of change in momentum |
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Third Newton law |
To every action force there's an equal an opposite reaction force |
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Newton redrive Kepler laws (first) |
Orbits can be circles , ellipses, parabolas, or hyperbolas |
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Newton redrive Kepler laws (second) |
No change, but Newton was able to show that the reason planets speed up and slow down in their orbit is conservation of angular momentum |
Conservation of energy |
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Newton redrive Kepler laws ( third) |
P^2 = 4(pie)^2 a^3/ G (M+m) |
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Newton law of gravity |
F= g (m xM) / d squared |
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Tides |
· Diff. In moon's gravity on parts of the earth's surface at varying distance from the moon. ·Sun affects tides ·Earth also raises tidal bulges on the moon , shows down moon ( 1 roation per orbit) |
Synchronous rotation |
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Weightlessness |
Due to freefalling |
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Conservation of momentum |
Cannot change unless an external force is acting on it. |
Interesting objects exchange momentum through equal and opposite forces |
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Types of energy |
Kinetic -motion. Radiative - light. Potential - stored. |
Cannot be created or destroyed |
