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Friction quiz

7th grade science friction quiz

QuestionAnswer
What is friction A force that opposes motion between two surfaces that are touching
What are the two factors that determine the amount of friction Force pushing surface together and roughness of surface
What is acceleration The rate of velocity change over time
Give an example of a balanced force A ball not moving
Give an example of an unbalanced force A ball moving
What is one way to reduce friction Add a lubricant
What is one way to increase friction Add sand and salt to icy roads
How can friction be harmful
Created by: ca28776
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