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Explain your answer. (Hint: think about the law of conservation of energy) Conservation of energy tells us that energy cannot be created or destroyed but only transferred from one store to another. Here it is transferred from the gravitational store to the kinetic store.
Worksheet #8: Conservation of Mechanical Energy Student Name: Energy (E) is defined as the capacity to do work (scalar). The unit for all energy and work is the Joule Mechanical energy- the energy due to the position of something or the movement of something. Mechanical Energy can be divided into to categories:
a. Find the gravitational potential energy of the ball. b. What is its height above the ground? c. What is the speed of the ball? d. What will be its gravitational energy when it is at its highest point above the ground? e. What is its maximum height above the ground? f. What will be its speed just before it lands on the ground?
a. What is its kinetic energy? b. What is its potential energy? c. What is its mechanical energy? 8. A 59 kg man has a total mechanical energy of 150,023 J. If he is swinging downward and is currently 2.6 m above the ground, what is his speed?
Law of Conservation of Energy Worksheet. Use the Law of Conservation of Energy to solve the following problems. 1. Physics student is dropped (don’t ask why or you’re next). If they reach the floor at a speed of 3.2 m/s, from what height did they fall?
Topic Specification. Conservation of Energy Revision. Energy can be transferred, stored or dissipated (wasted). But energy cannot be created or destroyed. This means that in a closed system (where energy cannot leave or enter the system) the net change in energy will always be zero. Useful and Wasted Energy.
Explain in terms of the conservation of energy. 28. You tell your friend that no machine can possibly put out more energy than is put into it, and your friend states that a nuclear reactor puts out more energy than is put into it.
