'Output distance' diaporamas de présentation

Work, Power, and Machines

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Chapter 14: Work, Power, and Machines

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Chapter 14: Work, Power, and Machines

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Work and Simple Machines

Work and Simple Machines. What is work?. In science, the word work has a different meaning than you may be familiar with. The scientific definition of work is: using a force to move an object a distance (when both the force and the motion of the object are in the same direction.).

561 views • 47 slides

Table of Contents

Table of Contents. What Is Work? How Machines Do Work Simple Machines. - What Is Work?. The Meaning of Work. *Work is done on an object when the object moves in the same direction in which the force is exerted. Work and Power.

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Work, Power & Energy

Work, Power & Energy. Work. Work is the product of force and distance For a force to do work on an object, some of the force must act in the same direction as the object moves. If there is no movement, no work is done.

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Chapter 5

Chapter 5. Work and Machines. Work. The transfer of energy to cause or make an object move. Work. If there is no movement, no work is done Ex: Lifting a text book (work) vs pushing on a brick wall (no movement = no work) . Work and energy.

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Buoyant Force, Work and Power

Buoyant Force, Work and Power. 2.24-2.28. Do Now 2.25.14. If an object is putting a pressure of 45 kPa on an area that is 9 m 2 , what is the force of the object?. Buoyancy. Buoyancy is the apparent loss of weight in a fluid. How things float. Archimedes Principle.

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MACHINES and EFFICIENCY

MACHINES and EFFICIENCY. Chapter 9.8-9.9. Key Terms. Work = Force x distance Simple machine a device used to multiply forces or change the direction of forces Compound machine A machine composed of two or more simple machines. Key Terms. Input (effort)

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Simple Machines

Simple Machines. Physics Mrs. Coyle. What are some simple machines?. Lever Incline Plane Pulley. Simple Machines. Multiply the effort force (allows you to use a smaller effort force to raise a heavier object). Change the direction of the force. Do not reduce the work input.

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Simple Machines

Simple Machines. Physical Science Georgia Performance Standards : SPS7a. Identify energy transformations in a system (e.g. lighting a match. SPS8e. Calculate amounts of work and mechanical advantage using simple machines. Created by: Christy Dion Paulding County High School Dallas, Georgia.

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Running times continued

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Work and Machines

Work and Machines. Machines Do Work. A Machine is a device that changes a force. Ex. A Jack used to change a tire. Machines make work easier to do. They change the size of a force needed The direction of a force The distance over which a force acts. Machines Do Work.

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Running times continued

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13-Work and Energy

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Bell Ringer 3-2-10

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How Machines do Work

How Machines do Work. How to move a pile of dirt. Handfuls? Shovels? Wheelbarrows? Using a machine may make work go faster, but it does not mean you do less work. What is a Machine?. Machine: allows you to do work in a way that is easier

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Simple Machines

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Mechanical Advantage

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When is work done?

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