![]() ![]() Active Forums (Make all new posts here). ![]() I wish you luck!And hope that you are able to find an interesting and appropriate topic You could also do variations on this one such as do female skaters spin faster than males or do taller skaters spin faster. If you do several skaters and calculate an average. You can then divide and determine the average revolutions per second in a fast scratch spin. Time them during the spin and count the number of revolutions. How fast do skaters spin? Get skaters to do a fast scratch spin. Compare the jump heights and determine if the skaters have greater leg strength.ģ. Then have a group of non-skaters do the same. They can hold a piece of chalk and mark the wall at the top of their jumps. Do skaters exhibit greater explosive leg strength than non-skaters? Get several skaters to jump (off-ice) near a wall. Measure the distance and compare with the distance without weights.Ģ. Then add mass such as have the skaters hold weights or other objects and push with the same strength. Does mass have an effect on glide? You could have one or more skaters stand in a T-position and push as hard as they can and glide across the ice. Hello !Just to add to some of the other great ideas the experts provided you with here are some more that I though might be helpfulġ. Let me know if you have any more questions. Here is the Wikipedia article on phase diagrams, to illustrate the properties I described: The reason for the second part is that the force (the skater's body weight) is constant, but the small area over which the force is applied is what makes the pressure so high. An experiment could look at the amount of pressure necessary to force ice into the liquid phase, and also look at how it relates to the width of the blade on the ice skate. When the pressure is released, the water freezes again. It's the liquid that makes skating smooth. What this means is that the pressure put on the ice by the person's ice skate makes the water go into its denser phase - liquid. This is only true for water, not any other material. The reason we can ice skate at all is because of one of water's unique properties: the liquid phase is more dense than the solid phase. I'm not sure if you've already settled on a project idea the topic selection wizard is really great! However, I thought it might be a fun experiment to examine the effects of pressure on ice. ![]()
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