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Study
Friction Year 3
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An example of useful friction
any
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How does friction affect speed?
more friction decreases speed, or slow down and stop a moving object
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An example of not useful friction
any
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Friction can be a problem, it can cause......?
wear and tear
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What does friction produce?
Heat
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What is the unit called that measures force?
Newton
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Rougher surfaces have ...
greater friction
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How to reduce friction?
use lubricants
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Friction is a force that acts in an ___________ direction of movement.
opposite
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A friction between a surface of a moving object and the water is called?
water resistance
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The amount of friction depends on
Types of surfaces
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What is Friction?
A force between 2 surfaces that are sliding or trying to slide against each other.
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T or F , The rougher the surface, the faster an object will travel over the surface.
False
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Which would create more friction? metal of carpet
carpet
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How would the absence of friction affect a marble traveling on a long, straight path?
The marble would remain at constant speed.
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Which of these materials do you predict would have the MOST amount of friction, Sand paper or Tile?
Sand paper
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A type of friction that occurs when air pushes against a moving object
air resistance
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