Standard Science Primary 6 Interactions

Ravi wants to reduce the friction between a heavy crate and the floor. Which of the following should he do?

A Add more weight to the crate.
B Remove the wheels from the crate.
C Apply some oil to the floor.
D Use a rougher mat on the floor.
Show Worked Solution

Worked Solution

Step 1: Friction depends on surface roughness and weight. Step [2-9]: Oil acts as a lubricant to make surfaces smoother. Step [2-9]: Smooth surfaces result in lower frictional force.

Correct answer: Apply some oil to the floor.

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