Advanced Science Primary 6 Interactions

Why do high-performance racing tyres often have a 'slick' surface with no treads when used on dry tracks?

A To reduce the heat generated during the race.
B To reduce the weight of the tyre.
C To increase the surface area in contact with the road for better grip.
D To allow water to pass through more easily.
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Worked Solution

Step 1: Treads are designed to channel water away on wet roads. Step [2-9]: On dry roads, a smooth (slick) surface provides maximum contact area. Step [2-9]: More surface area in contact results in higher friction and better grip.

Correct answer: To increase the surface area in contact with the road for better grip.

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