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16 Cards in this Set
- Front
- Back
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What is Newton's First Law?
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An object in motion tends to stay in motion.
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What is Newton's Second Law?
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Force is equivalent to mass times acceleration.
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What is Newton's Third Law?
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Every action has an equal and opposite reaction.
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What factor has the most impact on the equation of kinetic energy?
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Velocity.
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What two factors does FRICTION depend on?
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Surface and mass.
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If a ball is thrown STRAIGHT UP, the POTENTIAL ENERGY will...
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Increase.
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If a ball is dropped STRAIGHT DOWN, the POTENTIAL ENERGY will...
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Decrease.
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If a ball is dropped STRAIGHT DOWN, the KINETIC ENERGY will...
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Increase.
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As a rollercoaster moves down an incline, its ... energy will become ... energy then become ... energy.
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Potential, kinetic, potential.
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If you double the distance between two objects, the gravitational force...
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Quarters.
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Two slings swing at a rate of 2 revolutions per second. One is 1m in length and the other is 1/2m in length. Which moves faster in terms of liner speed?
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1m sling.
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Is gravity linear or non-linear? Why?
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Non-linear; the speed of a dropped ball more than doubles as the height doubles.
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The equation for torque is force x ...
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Radius.
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Would a 6" ratchet or a 9" ratchet be easier to use when taking out a spark plug on a car? Why?
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9"; there is more leverage.
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A wheel uses what kind of friction in its normal motion?
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Static; it rolls but doesn't slip.
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What is the easiest way to increase the amount of friction between two objects?
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Add weight to one object.
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