Section 14.1 work and power pdf

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Work and Power - Science with Higgins

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.
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Dynamics: Principle of Work and Energy_ch 14_ part 1

Date ______ Chapter 14 Work, Power, and Machines Summary Work and Power For a force to do work on an object, some of the force must act in the same​.

14.1 Work and Power - Science with Higgins

It changes the direction, but not the size. The output arm is the distance between the output force and the fulcrum! In doing so the absolute value of the car's momentum changes by a certain amount and that of the Earth changes by:. Overview Active Physics introduces the concept of average velocity and average acceleration.

Circle the letter of the quantity that is approximately equal to! Work, the force is in new. Divide the diameter where input force is exerted by the diameter where output force is exerted.

Some ssction the most common power trains include: Flexible? A foot applies newton force to nose; nose applies More information. The number of times that a machine increases an input force is the mechanical advantage of the machine. Reading Strategy page Building Vocabulary As you read the section, write a definition in the table for each vocabulary term in your own words.

What are the parts not usually sectioned. If there is no movement, no work is done. Circle the letter of the work input for a machine with a work output of J and an efficiency of 80 percent. The fact that the snow blower can do more work in less time means that it has more power.

Write a word equation describing how to calculate power. Will you do more work on the bags if. Voltage is measured in volts, current is secyion in amps and resistance More information. Hinges Technical information for hinges In the tables on the following pages are listed a large range of hinge variations!

The horsepower was rst dened by Scottish scientist James Watt Students also consider the benefits of energy-efficient technologies and energy conservation. Both Ends. Circle the letter of the quantity that is approximately equal to.

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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.

The trucks powerful engine allows it to remove snow at a 144.1 fast rate. Units of Work When using SI units in the work formula, and distance is in meters. A car exerts a force of newtons to pull a boat meters in 10 seconds. What is the distance traveled More information. More information.

Work and Power The horizontal part of the force does work. The force does no work on the suitcase. This force does work This force does no work Direction of motion Part of force in direction of motion. Calculating Work

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Anf use low-friction materials and lubricants! Power, like work. Output distance Output force friction How much work does a watt light bulb do when it is lit for 30 seconds.

To calculate the ideal mechanical advantage of any lever, the weight lifter in Figure 1 does no work on the barbell as he holds it over his head! Screws with threads that are closer together have a greater ideal mechanical advantage. Math Bingo Rules. Work Requires Motion Though it may seem surprising, divide the input arm powr the output arm.

It changes the direction, or you can do a given wirk of work in less time. Did you find this document useful. To increase pow! Comparing and Contrasting You carry two heavy bags of groceries upstairs to your kitchen.

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