PPT-Simple Machines and Mechanical Advantage

What is a machine A machine is simply a device that makes doing work easier Even a sloping surface can be a machine Using Machines Mechanical Advantage Even though machines make work easier they dont decrease the amount of work you need to do . Objectives:. 1) know how six different simple machines are used in every day life to make work easier. 2) be able to calculate the mechanical advantage, and efficiency of machines.. 2. What are the 6 types of . Work & Machines. What is work?. Work is done when a force causes an object to move in the direction of the force.. Transfer of kinetic energy. Applying a force does NOT always result in work being done.. Simple Machines. Lever, Wheel and Axle, & Pulley. MAIN . IDEA. Machines make tasks easier by changing the magnitude or the direction of the force exerted. . They are used to engineer speed, distance, force and function.. Simple Machines. A simple machine has few or no moving parts.. Simple machines make work easier.. With or without a simple machine the work is the same.. Also when simple machines are combined they can make complicated bigger machines.. WORK. Mechanical Advantage. Force. Effort. Efficiency. 1. Goals. Analyze the simple machines . qualit. atively and . quant. itatively in terms of force, distance, work and mechanical advantage. Be able to calculate mechanical advantage. Chapter 14 Section 3. Mechanical Advantage. The . mechanical advantage. of a machine is the number of times that the machine increases an input force. Suppose a nut is in a nutcracker at position A . A simple machine is any of the basic mechanical devices for applying a force, such as an inclined plane, wedge, or lever.. Simple machines are utilized to reduce the amount of force required to perform work, initiate or resist motion, break or split molecular bonds of solids, or keep two non-molecularly-bonded solid objects bound together.. IPC Spring . 2014. Energy, Work, Power & Machines. 1. Energy. is the ability to do work. .  . Potential energy. – stored energy or energy due to position.  . PE=m g h . m. is mass (kg). g. Device Construction. © 2012 Project Lead The Way, Inc.. Principles of Engineering. Presentation includes: instructions for building a simple machines device and measuring mechanical advantage. Base Equipment. SPS8: Students will determine relationships among force, mass, and motion.. SPS8.e: Calculate amounts of work and mechanical advantage using simple machines.. Work. When a force causes an object to move – work is done.. Pay attention. Simple Machines. Simple machines assist us in doing work by creating a mechanical advantage.. They . do not . change the amount of work; they lower the effort force. There are 6 types of simple machines: lever, inclined plane, pulley, wedge, screw, and wheel and axle.. The transfer of energy to an object by the application of a force that causes the object to move in the direction of the force.. work. Work is calculated by multiplying the ________ times the ________ that the object moves.. OBJ. : . Students will determine relationships among force, mass, and motion.. OBJ. : . Calculate amounts of work and mechanical advantage using simple machines.. Work. When a force causes an object to move – work is done.. Learning Objectives. I can mathematically rearrange the mechanical advantage equation.. I can calculate . mechanical advantage . using the formula.. Actual Mechanical Advantage (AMA). The ratio of the output force to the input force in a machine. Measuring the actual forces on the machine..