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Cards In This Set
| Front | Back |
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Inertia
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Tendency of an object to remain in its present state of motion
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Mass
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Quanitative measure of an object's inertia
(measured in kg on mcat) |
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Weight
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Weight on earth = mg
Gravitational force an object experiences when near a much larger body such as earth - on mcat, measured in N (newtons) |
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Center of mass
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Point through which a single force may applied in any direction causing all poins on the system to accelerate equally
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Forces of nature
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- gravitational force
- electromagnetic force - contact - only GF & EF act a distance - EF requires charged object or magnet |
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Newton's 1st law
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Law of inertia
- an object in a state of rest or in a state of motion will remain in that state unless acted upon by a net force |
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Newton's 2nd Law
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F= ma
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Newton's 3rd law
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For every action there is an equal & opposite reation
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A 50 kg skydiver & a 100kg skydiver open their parachutes & reach a constant velocity. Net force on larger skydiver
A) equal to net force of smaller diver B) 2x as great as net force on smaller skydiver C) 4x as great as net force on smaller diver D) (1/2) as great as net force on smaller diver |
A) equal to net force of smaller diver
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