science project question

[redphebe]

I want to know what the physics are behind cracking or splitting a fresh whole apple with your bare hands?, please help, this is my first science fair project and I saw my brother do this and he taught me, but I do not know how it works, so I am unable to look up information for my project. thank you for any help that may be sent my way, Eythan

[barretttomlinson]

Hi Eythan,

Here is a description of how to split an apple with your bare hands:
http://www.metacafe.com/watch/910033/su ... are_hands/

The description suggests you are using your hands like a wedge to pull apart the apple. Here is a simple description of a wedge, one of the basic simple machines:
http://teacher.scholastic.com/dirtrep/simple/wedge.htm

http://www.42explore.com/smplmac.htm


Lastly here is a paper talking about using wedges on apples:
http://www.springerlink.com/content/xm26217400761470/


This is a neat trick. I hope this helps you understand how it works!

Best Regards,

Barrett Tomlinson

[tdaly]

Kryssie's questions about her science fair project about circuits are now in their own thread in this forum called "Science Project Question - What is a Circuit?" Here is a link: https://www.sciencebuddies.org/science- ... =31&t=3693

[redphebe]

Thank you barretttomlinson for your information, I did not win 1st place, but I did get a ribbon and I had several Teachers and one Judge come to me to ask how I cracked my apples for my science project. It was pretty neat to have adults come and ask me for help and information. Thank you again for your help, I could not have done it without you.

Eythan

[ChrisG]

Congrats! It sounds like you had some great success.