Conservation of Energy PREFLIGHT

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The following three questions refer to the material you were to read in preparation for the lesson.

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Conservation of Energy II

A 0.05 kg marble is projected horizontally as shown in the animation. What is the energy lost due to the collision with the table? (Position is in meters and time is in seconds. Neglect air resistance.) Start
0.98 J
0.25 J
0.74 J
0 Since energy is always conserved.
Other (please explain below)




honors extra

Danger! Perpetual Motion!

For years, people have been speculating on how to make perpetual motion devices that would make them rich and famous. Robert Fludd, in 1619 drew this picture of a flour mill that needed no mill stream to operate. More serious is the "overbalanced wheel" on the right hand picture. Without analyzing these two devices in detail, explain what is wrong with them. Actually, far more serious, is what is wrong with the inventors. A web site Eric's History of Perpetual Motion lists the gruesome end of the inventors. Since this is Wheaton, after all, explain the connection between Science and Faith evident in this history.

Below is a space for your thoughts, including general comments about today's assignment (what seemed impossible, what reading didn't make sense, what we should spend class time on, what was "cool", etc.):



You may change your mind as often as you wish. When you are satisfied with your responses, click the SUBMIT button.

I received no help from anyone on this assignment.