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0 sats \ 0 replies \ @cryotosensei OP 11 Nov 2024 \ on: Are you smarter than a 12-year-old? #7 science
  1. Water reduces the frictional force between the shoes and the floor, thus making it more slippery
  2. The rumble strips increase the frictional force between the wheels and the road, thus slowing down the speed of the vehicles
  3. Rub her hands together. When she rubs her hands, the friction between her hands produces heat energy, which increases the rate of evaporation of water.
Bonus: maglev trains make use of magnets to make them float above the track. This reduces friction and allows the trains to travel at a higher speed.
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