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PF1.5: WORK, ENERGY AND POWER. Energy exists in many different forms, eg, kinetic energy Ek, potential energy Ug, electrical energy, and elastic (or spring) energy Es. A fundamental principle of nature is that energy cannot be created or destroyed, only transformed or transferred.
Power and Energy. 1. A 60–W light bulb is operated for an average of 5 hours per day. a. How much energy does the bulb consume in joules each day? b. How much energy does the bulb consume in kilowatt–hours each day? c. How much energy does the bulb consume in kilowatt–hours each month?
Use calculations to find out the answer and complete the sentences below. The appliance with the highest power rating is ..... . The highest power rating is ..... . The unit for power is ..... . [4] 2
Experiment One: Houston, we have liftoff. Introduction: We use falling water, after it is impounded behind dams, to do work on turbines and make electricity (electrical energy) for us. Although nature does the work of lifting this water into the air over the oceans, we can similarly do work on an object by lifting it above the ground.
The Basics of Work, Energy, and Power Objectives: 1. To describe the conditions under which positive and negative work are done and to use the work equation to calculate the amount of work done. 2. To define potential energy, to identify the two forms and the variables that affect the
Teacher Toolkit - The Basics of Work, Energy, and Power Objectives: 1. To describe the conditions under which positive and negative work are done and to use the work equation to calculate the amount of work done. 2. To define potential energy, to identify the two forms and the variables that affect the amount of each form, and
1. _________________________________ is the rate at which work is done. 2. When calculating power, you should use the formula P = _________________ divided by _____________. In this formula, “P” stands for power, ____ stands for work, and _____ for time. 3.
