What is the difference between a bicycle helmet and a skateboarding or scooter helmet?

Tyou

I have a 5 year old son. I need to get him a helmet for his bicycle, and scooter. I notice at the stores they have bicycle helmets and then they have a helmet for all other activieties. Why? Which is best?

Answer
a bicycle helmet covers mainly the top part of the head while a skateboarding helmet covers a larger area of the head including the sides. I would reccomend a skateboard helmet for a five year old. Make sure he's comfortable with the helmet(not too loose, not too tight)

physics of bicycle helmet!?

learnermin

am doing a lesson on Energy and Momentum and I am asked to write a report that includes sample calculations and examples, a thorough discussion of the principles of physics pertaining to energy and momentum, and apropriate diagrams and notations to demonstrate my understanding between the design and use of the helmet.

I am looking up google for information, and having some difficult time finding the right information, I appreciate if I could get some recommended links. I think they are asking me to demonstrate how kinetic energy is converted to potential energy during a crash but not quite sure how momentum is used (any help is appreciated) in the physics of helmets.

Answer
In a bicycle helmet, most of the kinetic energy of the impact is not usually stored as potential energy to be released later but is dissipated as heat. The helmet must also slow down the suddenness of the impact and spread them out over time and area so that the body structures can absorb them safely without high peak values of force or pressure.

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Title Post: What is the difference between a bicycle helmet and a skateboarding or scooter helmet?
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