Inclined Plane Wedge Screw Lever Wheel amp 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 ID: 366875 Download Presentation
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..
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.
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.
Physical Systems: Simple Machines. Simple Machines. A simple machine is a device, composed of only one or two parts, that requires a single force to work.. The stapler works by applying a single downward force at its open end. .
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. .
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). .
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. .
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..
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..
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..
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Presentation on theme: "Simple Machines"— Presentation transcript:
A simple device for altering the magnitude or direction of a force.
A simple machine has few or no moving parts.
They are used to make work easier.
They are used in everyday life for a variety of tasks.Slide3
A plane set at an angle to the horizontal, especially a simple machine such as a ramp or slide, used to raise or lower a load by rolling or sliding.Slide4
Example of an inclined planeSlide5
A piece of material, such as metal or wood, thick at one edge and tapered to a thin edge at the other for insertion in a narrow crevice, used for splitting, tightening, securing, or levering.Slide6
Example of a wedge.Slide7
A cylindrical rod incised with one or more helical or advancing spiral
Example of a screw.Slide9
A simple machine consisting of a rigid bar pivoted on a fixed point and used to transmit force, as in raising or moving a weight at one end by pushing down on the other.Slide10
Example of a lever.Slide11
Wheel and Axle
A simple machine consisting of an axle to which a wheel is fastened so that torque applied to the wheel winds a rope or chain onto the axle, yielding a mechanical advantage equal to the ratio of the diameter of the wheel to that of the axle.Slide12
Example of a wheel and axle.Slide13
A simple machine consisting essentially of a wheel with a grooved rim in which a pulled rope or chain can run to change the direction of the pull and thereby lift a load.Slide14
Example of a pulley.Slide15
Can you think of any simple machines?
Simple machines are very useful and versatile. They have been used over the course of history for everything from building the Egyptian pyramids to splitting logs. When you go home today how many simple machines can you find?