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WHY?
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As the balloon deflates, it forces air out of the neck of the
balloon. The air produces a reaction force that pushes the balloon
forward. Jet and rocket engines work in a similar way. They heat air or
gas and force it from the exhaust so that the reaction pushes the engine
forward. As you know, many of the basic laws and principles of physics
are several hundred years old. Most modern scientific discoveries are
based on them, making these laws as relevant today as they were centuries
ago.
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ASSESSMENT: Can the student communicate
what they observed?
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Student is able to communicate the component parts of the experiment
of the balloon jet and how it relates to Newton's Third Law of Motion.
Student is also able to give a second illustration in their everyday
lives that relates Newton's Third Law of Motion as well (in this way you
can assess if the student really understands the concept and is not
mimicking information).
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Student is able to communicate most of the component parts of the
experiment of the balloon jet and how it relates to Newton's Third Law of
Motion. Student is also able to give a second illustration in their
everyday lives that relates Newton's Third Law of Motion as well (in this
way you can assess if the student really understands the concept and is
not mimicking information).
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Student is able to communicate the some of the component parts of
the experiment of the balloon jet and how it relates to Newton's Third
Law of Motion. Student is also able to give a second illustration in
their everyday lives that relates Newton's Third Law of Motion as well
(in this way you can assess if the student really understands the concept
and is not mimicking information).
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Student is able to communicate the one of the component parts of the
experiment of the balloon jet and how it relates to Newton's Third Law of
Motion.
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Last modified: Fri Feb 13 16:09:08 PST 1998
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