PPT-SIMPLE MACHINES - LEVER 1

2 SIMPLE MACHINES LEVER A lever is a rigid bar that rotates around a fixed point called the fulcrum The bar may be either straight or curved In use a lever has both an effort or applied force and a load resistant force . 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. Tried to take a super heavy object up a flight of stairs ? WHAT HAPPENED. Example. Have you ever . Tried to cut a cake with out a knife?. Example. Have you ever . tried to unscrew a nut, bolt, or screw from something with your bare hands and discovered that it was just too tight to loosen even if you had a good grip? . Inclined Plane, Wedge, Screw, Lever, Wheel & Axle, Pulley.. By: . Shae. Anderson. What is a simple machine?. A simple device for altering the magnitude or direction of a force. . A simple machine has few or no moving parts.. 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. . 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. Ms. Mathis and Ms. Santiago. 4. th. grade Power Point. Simple Machines. Table of Contents. Georgia Performance Standards. Types of Simple Machines Organizer. Inclined Plane. types of inclined planes. 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?. Simple machine is a term used to describe certain parts and pieces.. A simple machine is an apparatus that is made of a small number of pieces and permits us to use more efficiently or more comfortably mechanical energy. It helps us reduce the necessary force to perform a task.. Jeopardy. 100. 100. 200. 200. 400. 400. 300. 400. Bathroom Simple Machines. Kitchen simple Machines. Bedroom simple machines. Solar System. 300. 300. 300. 200. 400. 200. 100. 500. 500. 500. 500. 100. 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.. 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.. 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. .