Determine which activities o features of objects below illustrate a
benefit or harm of friction. Draw a smiley face if the given shows a potential
benefit and a sad face if it shows potential harm.
1.bicycle brakes
2.striking a match for cooking
3.no oil in a car engine
4.rusty padlock
5.holding a soda can
benefit or harm of friction. Draw a smiley face if the given shows a potential
benefit and a sad face if it shows potential harm.
1.bicycle brakes
2.striking a match for cooking
3.no oil in a car engine
4.rusty padlock
5.holding a soda can
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Answer:
1.happy
sad
sad
happy
happy
Explanation:
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