1 / 14

Simple Machines

Simple Machines. 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

kim-ayers
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

  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 vs. Compound Machines • Simple Machines can be put together in different ways to make compound machines or complex machinery.

  12. Example of Compound Machine • Wedge  • Lever 

  13. Name the simple machines in a bike:

  14. Answer for bike question: • A bike is compound machine. Screws are used to hold the pieces together. The wheel of a bicycle is a wheel and axle. The pedals are also examples of this simple machine. The pedals are attached to a lever that turns a pulley. The gear shifts and brake handles are levers.

More Related