Section 14.1 work and power pdf
Work and Power - [PDF Document]Embed Size px x x x x Section Reading Strategy page Relating Text and Visuals As you read, look carefully at Figures 1and 2 and read their captions. Complete the table by describing thework shown in each figure. Why isnt work being done on a barbell when a weight lifter is. Is the following sentence true or false? A vertical force does work onan object that is moving in a horizontal direction.
14.1 Work and Power
Common uses of simple machines are also described. Students also consider the benefits of energy-efficient technologies and energy conservation. In order to do work faster, more power is required. Category: Documents 10 download.You can tell from the look on his face that holding up the weight is hard work. The fact that the snow blower can do more work in less time snd that it has more power. A When force and motion are in the same direction, the work done is maximized. James Watt and Horsepower page .
Chapter 10 Energy and Work Cluster Box Units. Distance Because in order for work to be done on an object, simply substitute the correct values into the formula and multiply. To use the work formula, Work is maximized when force is applied in the same direction Force Work c.
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Figure 3 shows an example of what a difference in power means when performing a task such as snow removal! Answer: D foot applies newton force to nose; nose applies an equal force to the foot. Math Bingo Rules? Figure 4 Although the horsedrawn plow and the gasolinepowered engine get their power from different sources, both are capable of doing work at a rate of about wor, horsepower.
Work input equals the input force multiplied by the input distance. Circle the letter of each sentence that is true about power. Voltage is measured in volts, current is measured in amps and resistance. Circle each letter that identifies a compound machine.Post on May views. The tree house is 4. In science, work that is done on an object can be described as the. Divide the diameter where input force is exerted by the diameter where output force is exerted.
Damotharan Sathesh Kumar. Ways to maximize mechanical advantage and efficiency are discussed. You can increase power by doing a given amount of work in a shorter period of time. Definitions to know: Simple Machines Work done when an applied force causes an object to move in the direction of the force Energy ability to cause change; can change the speed, sha.
Reading Strategy page Relating Text and Visuals As you read, look carefully at Figures 1 and 2 and read their captions. Complete the table by describing the work shown in each figure. All rights reserved. What Is Work? In science, work is done when a n force acts on an object in the direction the object moves. Why isn t work being done on a barbell when a weight lifter is holding the barbell over his head?
The SI unit of work is the joule. Measurement uncertainty in torque calibration Luca G? The SI unit of power is the watt.
Contents Measurement uncertainty in wirk calibration Luca G. All second-class levers have a mechanical advantage greater than one because the input arm is longer than the output arm. Circle the letter of the sentence that describes how to calculate the IMA of a wheel and axle. Finding the work required to pump liquid from a tank 4.