Today in class, we took a closer look at Newton's 3rd law (For every action, there is an equal and opposite reaction), and we also got a chance to learn about the role of force in overcoming gravity. The greater the action, the greater the reaction, or as we saw firsthand, the more force that is used to launch the rocket, the greater the height the rocket can reach. Now, we could only generate so much force with our hands, but imagine if we had rigged up a system that would allow us to jump, or stomp, onto the launcher with our feet...I wonder how high/how far the rocket could have gone then! Well, a group of kids did try something sort of like that. Check out this link to see the results!
And while you're here...are you interested in earning five success tickets? If you are, then try one of these experiments at home and write up a lab report to share your results with your fellow scientists at school. Try throwing a ball while sitting on a skateboard. Identify the action and the reaction. Then, try throwing the ball a little harder. Record your observations. This is another lab that can illustrate how force can affect your ability to overcome gravity. And if you like that, then you can also try this paper rocket launcher, as well. Check out this site on the NASA page to get all the info. Remember to aim your rockets away from people and animals. Enjoy!
Monday, November 29, 2010
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