 If you have 2 objects that have the same mass, what can be done to make one of the objects have greater kinetic energy?  If you have 2 objects where.

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Presentation transcript:

 If you have 2 objects that have the same mass, what can be done to make one of the objects have greater kinetic energy?  If you have 2 objects where one has the greater mass than the other, what can be done to make sure the object with the greater mass has greater kinetic energy than the object with lesser mass?

 Must an object be moving in order to have energy? ◦ NO!!!  Some objects have stored energy as a result of their positions or shapes!  Energy at the ready!  This is Potential Energy!!! ◦ Stored energy that results from the position or shape of an object.

 Stretching an object creates potential energy.  Look at a rubber band comparison!  What about a spring?  Elastic Potential Energy ◦ Potential energy associated with objects that can be stretched or compressed.

 What is energy?  How are energy, work, and power related?  If a handsaw does the same amount of work on a log as a chainsaw does, which has the greater power? Why?  What is Kinetic Energy?  What is Potential Energy?  What factors affect an object’s kinetic energy?  What factors affect an object’s potential energy?

 Pay attention to Mr. Scott so he can tell you!!!

 Calculate your weight in Newtons. ◦ (Weight) x (4.448) = Newtons  You are about to jump off a high dive into a swimming pool. The high dive is 8 meters tall.  What is your potential energy in Joules before you jump off of the high dive?