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10 Cards in this Set
- Front
- Back
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FRICTION
By rubbing your hands together you create _______. |
Heat
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FRICTION
When you rub your hands together, the force that creates heat is called ________. |
friction
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FRICTION
What is one way to reduce friction? |
Use wheels or ball bearings or put a load on wheels or using lubrication
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WORK
What do you call it when a force is applied to an object, or load, to make it move? |
Work
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WORK
Is more or less work required to move a heavy load the same distance as a lighter load? |
More work
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WORK
What is the formula for work? |
Force x distance = work
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What is starting friction?
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The friction that is greatest just before an object moves.
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What is sliding friction
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Friction that lessens when an object is in motion.
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What happens to friction when an object rolls on wheels
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Itlessens
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True or false, Heavier objects create more friction when being moved and lighter objects create less friction when being moved.
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true
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