Standard Science Primary 6 Interactions

Jun Jie noticed that the soles of his old running shoes were very smooth compared to his new ones. How does this affect his running on a wet track?

A It decreases friction, making it easier to slip.
B It increases friction, making it easier to run.
C It has no effect on friction.
D It increases the gravitational pull on him.
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Worked Solution

Step 1: Identify the change in the surface (smooth soles). Step 2: Recall that smooth surfaces provide less friction than rough ones. Step 3: On a wet track, lower friction makes it harder for the shoes to grip the ground, increasing the risk of slipping.

Correct answer: It decreases friction, making it easier to slip.

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