Standard Science Primary 6 Interactions

Siti released a toy car from the top of a ramp. She changed the surface of the ramp for each trial. Which surface will cause the car to travel the SHORTEST distance on the floor?

A Plastic
B Sandpaper
C Glass
D Polished Wood
Show Worked Solution

Worked Solution

Step 1: Distance travelled depends on friction. Step 2: Rougher surfaces produce more friction. Step 3: Sandpaper is the roughest surface listed, creating the most friction to slow the car down.

Correct answer: Sandpaper

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