Siti conducted an experiment by releasing a wooden block from the top of a ramp. She changed the surface of the ramp for each trial and measured the distance the block travelled across the floor. Which surface material likely caused the block to travel the SHORTEST distance?
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Worked Solution
Step 1: Identify that the shortest distance implies the highest frictional force.
Step 2: Friction is higher on rougher surfaces.
Step 3: Sandpaper has a rougher texture than glass, plastic, or polished wood.
Step 4: Therefore, sandpaper will result in the shortest distance travelled.
Correct answer: Sandpaper
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