3 In our daily lives, how do we make use of friction when we design products?
Increasing friction
1. Why can the brake pads of bicycles slow down or stop the rotating wheels? Circle the correct answers.
brake pads
brake pads
when a bicycle is running
when you brake a bicycle
The friction between the brake pads and the wheel creates pushing force / resistance , which makes the wheel rotates more slowly / quickly .
2. Why are there uneven patterns on the surface of bath mats? Circle the correct answers.
The design of uneven patterns makes the surface of bath mats smoother / rougher . It increases / reduces the friction between the feet and the bath mats, preventing slips.
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