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9 Cards in this Set
- Front
- Back
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Elastic Collision
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Use conservation of energy OR conservation of momentum:
Ki + Ui= Kf + Uf pi=pf |
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Inelastic or Partially Elastic Collision
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Conservation of Momentum ONLY:
pi=pf |
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Specific Gravity
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S.G. = (density fluid)/(density of water)
(so water has a s.g. of 1) |
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What is the Density of water? (2 forms)
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1 gm/(cm^3)
1000 kg/(m^3) |
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If Velocity increases, air resistance...
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increases
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If Mass increases, air resistance....
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decreases (larger masses experience less deceleration)
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Energy can only leave/enter a sytem through...
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Work (w) or heat (q)
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How do ideal machines increase mechanical advantage?
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Amt. of work remains the same
Force decreases b/c distance increases |
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Atmospheric Pressure (3 forms)
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1 atm = 760 torr = 101,000 Pa = 1 bar
*if you are working in m/kg, use Pascals |
