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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.
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.
Physics' three essential concepts are work, energy, and power. When a force (push or pull) applied to an item results in the displacement of the object, that force is said to have performed work. Energy is how we define the ability to perform work.
We describe the rate of energy dissipation over time as power (P), and we express power in the unit of the watt (W). Write the equation relating power to voltage and current, for an electrical resistance.
Worksheet 22.2 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? (Assume 30 days per month) d. If 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
Work, Energy and Power: Problem Set. Problem 1: Renatta Gass is out with her friends. Misfortune occurs and Renatta and her friends find themselves getting a work out. They apply a cumulative force of 1080 N to push the car 218 m to the nearest fuel station. Determine the work done on the car. Audio Guided Solution. Show Answer. Problem 2:
