Standard Science Primary 6 Interactions

Ravi noticed that it was harder to push a heavy box across a carpeted floor than a tiled floor. Which of the following explains this?

A Frictional force between the box and the carpet is greater.
B Gravitational force is greater on the carpeted floor.
C The box has more mass when placed on a carpet.
D Magnetic force is acting between the carpet and the box.
Show Worked Solution

Worked Solution

Step 1: Compare the two surfaces (carpet vs tiles). Carpet is rougher. Step 2: Rougher surfaces produce more friction opposing the motion of the box. Step 3: Higher friction makes it more difficult to push the object.

Correct answer: Frictional force between the box and the carpet is greater.

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