OPENING QUESTION:  Compare & Contrast a ballistic missile with a rocket (Such as the Saturn V we looked at yesterday)


By the by, Iran just yesterday launched a dozen "ballistic missiles" against US targets in Iraq. What does "ballistic" mean and how is that similar to a rocket?





A "ballistic" missile is a rocket that uses fuel to reach a altitude high above the Earth. The fuel runs out and the rocket is 'guided' to a target back on Earth simply by using the Laws of Physics.


It may interest you to know that one of the ways the United States tests its "Intercontinental Ballistic Missiles" is to launch them towards and Kwajalein Atoll in the Pacific




LEARNING GOAL FOR TODAY: I will be able to show how Newton's 3rd Law apply to rockets during today's class.


Force ("A push or a pull")

Newton's 3rd Law: "For every force exerted by one object there is an equal and opposite force exerted by a second object."

Take a few moments to work with your group to research a (fairly basic) balloon rocket.

Most references online will simply show a straw taped to a balloon... you *can* do that, if you can't come up with anything more advanced, but hopefully you'll be a tad more *thoughtful* in your design.

With that in mind, let's see how we can relate that balloon rocket to a rocket travelling between the Earth and Mars.