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12 Cards in this Set
- Front
- Back
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Work
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The process by which E is transferred from one system to another
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Power
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rate at which work is done or E is transferred
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Work-Energy Theorem
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States that when net work is done on or by a system, the system's kinetic energy will change by the same amount
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System's total E is conserved in a ________ collision.
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System's __________ E is conserved in a completely elastic collision.
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In ________ & ________ collisions, KE is transformed into another form. (i.e. heat, light, sound)
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In inelastic & completely elastic collisions, KE is ___________.
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Efficiency
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the ratio of a machine's output work to input work when friction is taken into account
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The center of mass and the center of gravity are at the same pt. within an object as long as ________.
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The ______ & the _______ are at the same pt. within an object as long as g is constant.
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Joule = (units)?
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( kg · m^2 ) / s^2 = N·m
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Watt = (units)?
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J/s
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Impulse equation
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I = F∆t = ∆p = mv(f) - mv(i)
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Impulse = (units)?
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kg·m/s
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Central mass equation
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X = (m(1)x(1) + m(2)x(2) + m(3)x(3) etc.) / (m(1) + m(2) + m(3) + etc.)
ratio of mass distance to mass |
