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3 cards from this section. Quick, good the night before a test.
What is friction?
Think about how it affects walking and writing.
What type of friction is needed to start moving an object at rest?
Remember, static means still!
What type of friction must be overcome to initiate motion?
This type is higher than others.
True or False: Sliding friction is greater than static friction.
Think about starting vs. maintaining motion.
You have a heavy block placed on a flat surface. Describe how you would test the static friction.
Use a spring balance and apply force gently.
Explain the consequences if all materials had no friction.
Think about daily activities you rely on friction for.
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