Standard Science Primary 6 Interactions

Jun Jie wants to reduce the friction between a heavy crate and the floor to move it more easily. Which of the following methods would work?

A Adding more weights into the crate.
B Using a trolley with wheels.
C Wearing shoes with better grip.
D Sprinkling sand on the floor.
Show Worked Solution

Worked Solution

Step 1: Friction opposes motion. Step [2-9]: Rolling friction (using wheels) is much lower than sliding friction. Step [2-9]: Using a trolley reduces the resistance from the floor.

Correct answer: Using a trolley with wheels.

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