Standard Science Primary 6 Interactions

Siti observed that it was harder to push a heavy box across a carpeted floor than a tiled floor. Which of the following explains her observation?

A The box has more mass on the carpeted floor.
B The tiled floor exerts more gravitational force.
C The carpeted floor exerts more frictional force.
D The carpeted floor has a smoother surface.
Show Worked Solution

Worked Solution

Step 1: Identify the difference between the two surfaces. Carpet is rougher than tile. Step [2-9]: Rougher surfaces exert more frictional force opposing motion. Step [2-9]: Higher friction makes it harder to push the box.

Correct answer: The carpeted floor exerts more frictional force.

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