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What's The Purpose...? The Purpose of this project is to apply the laws of physics to real life. It is designed to show us that when (SCROLL ON DOWN) the time of impact, or how long it takes the force to reach the object, is increased, The impact, or the actual force, is decreased. Some people could also see it as a way to verify that we are actually understanding the concepts of change in momentum and impulse.
What Did You Do Again? This Project was kind of like making a car (Egg case) that is safe enough to protect the person (Egg) during a (SCROLL ON DOWN) crash. We Were asked to make a case that has a high impact time so that there would be a lower impact or force that would be applied to the egg. That way our eggs would survive.
Eggstravaganza
*How Did I Make That! ?* My case was made out of a lot of common household items. I used an old jewelry box. There was a layer of rubber bands placed on top (Scroll On Down) of cotton, packing foam and tiny pebbles. I then placed tissue on top to protect the egg.
It Broke!?!? Why!? Yes it did break. There were some eggs that did not break but mine was not one of those. Those egg cases had more give, also known as time of impact, then mine. Therefore their force was less. How is that, you ask? (Scroll On Down) Well though we have the same change in momentum, due to the same change in velocity, and the same impulse some eggs had more give as I said before. So my force was increased because my time of impact was not large enough. And their force was decreased because the time of impact was increased.
This video shows what happens when the time of impact is not increased. On the older vehicle there is less of a crumple zone so the car gives more impact to the driver. Where as in the newer vehicle has a larger crumple zone allowing there to be more impact time and less force.
Akisha F
*What is Momentum?* Momentum is inertia in motion. Inertia is the resistance an object has to changing its state of motion. Momentum can also be (Scroll On Down) described as how resistant something is to stopping. The way that you can find momentum is to take the mass of the object and multiply it by the velocity. Or in short p=mv.
MultiVuOnline, Crash test: 1959 Chevy Bel Air. .September 16, 2009. Online video clip. Youtube. Nov. 7 2009.
Physics, impulse and momentum are used a lot in golf. You have to increase your time of impact in order to force the ball to go (Scroll On Down) further. That is the one way that could increase the momentum and impulse. That way is known as follow through. The other way is a simple technique known as swinging harder and with more force. This increases the impulse because the velocity is increased while the mass stays the same.
This is a picture of what happens when the time of impact is not increased. The force is a lot greater causing a lot more damage. If he would have snapped with his neck back and moved with the punch the time impact would be a lot greater and the force would have been less. Therefore he would have been able to recover a lot faster. These are the things that professional fighters have to think about these things all the time. Because just like every other profession, it just takes the wrong move or too slow of a reaction time to hurt yourself.
Keith Allison. Tiger woods. March 4 2008. Online Image. Flickr:Creative Commons, Nov. 8 2009. http://www.flickr.com/photos/keithallison/ / CC BY-SA 2.0
.A.A. punched. July 8th 2007. Online Image. Flickr: Creative Commons. Nov. 17, 2009. . http://www.flickr.com/photos/sloth_rider/ / CC BY 2.0
