1 / 14

Simple Machines

Simple Machines. Mr. Herndon. 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

dschuller
Download Presentation

Simple Machines

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Simple Machines Mr. Herndon

  2. What is a Simple Machine? • A simple machine has few or no moving parts. • Simple machines make work easier

  3. 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 • Gears are a form of wheels and axles

  4. Pulleys • Pulley are wheels and axles with a groove around the outside • A pulley needs a rope, chain or belt around the groove to make it do work

  5. Inclined Planes • An inclined plane is a flat surface that is higher on one end • Inclined planes make the work of moving things easier

  6. Wedges • Two inclined planes joined back to back. • Wedges are used to split things.

  7. Screws • A screw is an inclined plane wrapped around a shaft or cylinder. • The inclined plane allows the screw to move itself when rotated.

  8. Levers-First Class • In a first class lever the fulcrum is in the middle and the load and effort is on either side • Think of a see-saw

  9. Levers-Second Class • In a second class lever the fulcrum is at the end, with the load in the middle • Think of a wheelbarrow

  10. Levers-Third Class • In a third class lever the fulcrum is again at the end, but the effort is in the middle • Think of a pair of tweezers

  11. Simple Machines • Simple Machines can be put together in different ways to make complex machinery

  12. Rube Goldberg Machines • Rube Goldberg machines are examples of complex machines. • All complex machines are made up of combinations of simple machines. • Rube Goldberg machines are usually a complicated combination of simple machines. • By studying the components of Rube Goldberg machines, we learn more about simple machines

  13. Safety Device for Walking on Icy Pavements When you slip on ice, your foot kicks paddle (A), lowering finger (B), snapping turtle (C) extends neck to bite finger, opening ice tongs (D) and dropping pillow (E), thus allowing you to fall on something soft.

  14. Blog Questions • 1. Give three examples of all six simple machines. • 2. What is a fulcrum? Give an example. • What are some of the simple machines in your project?

More Related