Standard Science Primary 6 Interactions

Michael is pushing a heavy cabinet across a carpeted floor. He finds it difficult to start the motion. Which of the following would make it EASIER for him to move the cabinet?

A Sprinkling some fine powder on the floor.
B Wearing shoes with more grip.
C Adding more heavy books into the cabinet.
D Using a larger force in the opposite direction.
Show Worked Solution

Worked Solution

Step 1: Identify the problem (high friction between cabinet and carpet). Step [2-9]: To make it easier, friction must be reduced. Step [2-9]: Powder acts as a lubricant, filling the uneven surfaces of the carpet and cabinet base to reduce friction.

Correct answer: Sprinkling some fine powder on the floor.

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