PPT-1 Work and Simple Machines

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 . What is a Simple Machine?. A simple machine has few or no moving parts.. Simple machines make work easier. Wheels and Axles. The wheel and axle are a simple machine. The axle is a rod that goes through the wheel which allows the wheel to turn. November 24. th. -25. th. . Goal:. I will be able to explain the relationship between mass, force and distance traveled. . I will be able to describe the difference between different simple machines. . By:. Drew Harris. Simple machines. The basic machines that make up other machines are called . simple machines. . There are six of them. They are lever, pulley, wheel and axle, inclined plane, screw, and wedge. All these machines help us move things by changing the size of the force applied, the direction of the force, or both at once. . A. 5. th. Grade Smarty Pants?. Simple Machines Song. A bar that turns against . an unmoving point is called a…. Wheel and Axel. Lever. Pulley. Wedge. Video. A bar that has an inclined plane wrapped around it is called a…. 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.. Nature of Machines. Machines are any device that transfer a . force . from one . place. to . another. .. Nutcracker, ramp, engine. All . complicated. machines contain many small . simple. 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. The Wheel and Axle. The Big Idea of this Investigation. A simple machine is a mechanical device that makes work easier by magnifying, modifying, transferring, or changing the direction of applied force. Simple machines are the elementary "building blocks" of which all complicated machines are made.. Work. Work is done when a . force . (push or pull) causes an object to move in the . same direction . that the force is applied.. Formula: Work= Force x Distance . (W = F x D). If there is no movement, there is no work.. If we did not have the large machines that we have today for building, would we still be able to make these large structures? Why?. 2. Essential Question:. How do simple machines make life easier for us?. 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.. Why do we use machines?. Machines make doing work easier.. But they do not decrease the work that you do.. Instead, they . change the way you do work.. In general you trade more force for less distance or less force for more distance. 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 don’t decrease the amount of work you need to do. . Have you ever played that zany game called Mouse Trap? That series of events produced by a bunch of simple machines brought together to achieve one task, is called a Rube Goldberg Machine. Rube Goldbe