Cool Curling
Curling is a crew sport the place two groups slide granite stones throughout a really lengthy strip of ice in direction of a goal. Curling stones are heavy, weighing round 20kg.
Every participant has a brush to maneuver the stones and particular sneakers. One curling shoe has grips, and the opposite is slippery, permitting them to slip the stone as they play whereas nonetheless gripping the ice when wanted. Brushes are used to heat the ice the place gamers need the stone to maneuver. That is referred to as sweeping. Sweeping reduces friction between the stone and ice.
Curling ice is not clean just like the ice used for skating and ice hockey, it has tiny bumps referred to as pebbles which are created by spraying water on the ice. The pebbles cut back the floor space of the ice that contacts the stone, permitting it to slip extra simply somewhat than simply sticking to the ice.
Curling STEM Problem
This exercise makes use of a paper plate with weights on it to be a curling stone and exams totally different supplies on the underside to scale back friction between the plate and the ground.
Check totally different supplies on the underside of a paper plate to search out which makes the plate (the curling stone) transfer the quickest.
Strive tough and clean supplies to analyze which reduces friction between the plate and the ground essentially the most.
You may want
- Paper plate
- Check supplies – bubble wrap, kitchen foil, tissue paper
- Tape
- Cash
Directions
Tape a number of cash to the highest of a paper plate. That is simply to make it more durable to push.
Mark a begin line on a flat, open floor.
Gently push the plate and file how far it goes.
Select one in every of your take a look at supplies and use it to cowl the underside of a paper plate.
Gently push the plate from the beginning line once more. Attempt to use the identical power as with the primary plate and file how far the plate travels.
When gamers sweep the ice, they generate warmth that melts the highest of the ice pebbles, decreasing friction between the ice and the stone and making the stone transfer quicker!
