Standard Science Primary 6 Interactions

Tim conducted an experiment to find out how the surface of a ramp affects the distance moved by a toy car. Which surface will likely cause the car to travel the SHORTEST distance?

A Glass
B Smooth plastic
C Polished wood
D Sandpaper
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Worked Solution

Step 1: Frictional force opposes motion. Step 2: Rougher surfaces produce more friction than smooth surfaces. Step 3: Sandpaper is the roughest surface among the choices. Step 4: More friction will slow down the car more quickly, resulting in the shortest distance.

Correct answer: Sandpaper

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