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Project title How does the air pressure in a football helmet affect cushioning?Featured science projectScience project video
Difficulty Level Middle school
Project page  Click here to view this science project

Description
The purpose of this experiment is to find out the use of air pressure in the padding of the helmet and how different amounts of air pressure would affect its wearer. American football is a very physical sport which involves body to body contact and human to human collision. In order to protect the player’s body from being injured, various safety features are implied onto the player’s attire. The air pressure in the padding of a helmet is a good example of such safety features. 

Instructions preview
1. For this experiment, the independent variable is the amount of air pressure in the padding of the helmet. The dependent variable is the force of impact. The constants include the type of helmet used, the size of the dummy’s head and the probe being used. 2. Tie the string to the bottom of the pulley. 3. Look for something steady which has a hole in it to allow the string to be passed through, e.g. a metal hook on a brick wall. The structure must be at least 3.5 meters high. Pull the string so that the pulley .....
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