Simple machines
Download
1 / 14

Simple Machines - PowerPoint PPT Presentation


  • 92 Views
  • Uploaded on

Simple Machines. Make work easier!. What are Simple machines?. A simple machine is an unpowered mechanical device There are six basic types of simple machines: inclined plane wedge screw lever wheel and axle pulley. Inclined plane. Description: a flat, slanted surface

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' Simple Machines' - fritzi


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.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
Simple machines

Simple Machines

Make work easier!


What are simple machines
What are Simple machines?

  • A simple machineis an unpowered mechanical device

  • Thereare six basic types of simple machines:

  • inclined plane

  • wedge

  • screw

  • lever

  • wheel and axle

  • pulley


Inclined plane
Inclined plane

  • Description:

    • a flat, slanted surface

  • How they make work easier:

    • Increases the distance (small force over long distance)

    • Longer the incline plane, the greater mechanical advantage (easier it is to push or pull)



  • Wedge
    Wedge

    • Description:

      • thick at one end and thin at the other end (2 incline planes put together)

      • Splits things apart

  • How it makes work easier:

    • Increases the distance (small force over long distance)

    • Longer and thinner the wedge, the greater the mechanical advantage (the easier it is to split things)



  • Screws
    Screws

    • Description:

      • an inclined plane wrapped around a center, forming a spiral.

  • How it makes work easier:

    • Increases the distance (small force over long distance)

    • Closer together the threads (spiral) the greater the mechanical advantage (the easier it is to pull together)



  • Wheels and axles
    Wheels and axles

    • Description:

      • Two circular objects that are connected together and rotate on an axis.

      • The large object is called the wheel.

      • The small object (stick) is called the axle.

    • How it makes work easier:

      • Increases your force

      • Bigger the wheel, the greater the mechanical advantage (the easier it is to turn)

    wheel

    Axle



    Pulleys
    Pulleys

    • Description:

      • a rope that is wrapped around a grooved wheel.

    • How it makes work easier:

      • changes the direction

      • Increases force

      • The more ropes a pulley has, the greater the mechanical advantage (the easier it is to lift things up)



    Levers
    Levers

    • Description:

      • a rigid bar that rotates on a fixed point called the fulcrum

      • Different Classes:

        • 1stclass: fulcrum is in middle

        • 2nd class: resistance (output) in middle

        • 3rdclass: effort (input) in middle

    • How it makes work easier:

      • 1st: changes directions

      • 2nd: increases the distance

      • 3rd: increases force

    123

    FRE


    E

    R

    F

    E

    R

    F

    R

    E

    F


    ad