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Unformatted text preview: Physics Honors Distributed By: Tyrone G Carter Chapter 5 Quiz 2004 Quiz Physics Honors 1. Is it possible for a system to have negative potential energy? A. Yes, as long as the total energy is positive. B.* Yes, since the choice of the zero of potential energy is arbitrary. C. No, because the kinetic energy of a system must equal its potential energy. D. No, because this would have no physical meaning. E. Not covered in the assigned reading. Can work be done on a system if there is no motion? A. Yes, if an outside force is provided. B. Yes, since motion is only relative. C. No, since a system that is not moving has no energy. D.* No, because of the way work is defined. E. Not covered in the assigned reading. Consider two masses m1 and m2 at the top of two frictionless inclined planes. Both masses start from rest at the same height. However, the plane on which m1 sits is at an angle of 30 degrees to the horizontal, while the plane on which m2 sits is at 60 degrees. If the masses are released, which is going faster at the bottom of its plane? A. m1 B. m2 C.* They are going the same speed. D. Cannot be determined. E. Not covered in the assigned reading. A ball drops some distance and gains 30 J of kinetic energy. Do not ignore air resistance. How much gravitational potential energy did the ball lose? A.*...
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This note was uploaded on 08/29/2010 for the course PHYS 38234 taught by Professor Ramesh during the Spring '09 term at Berkeley.

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