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Simple Machines: Lever, Wheel, Axle, Pulley

15 minutes

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Videos are generally available for preview to non-members as short clips. Limited full-length titles are also available. Log In to view the full length title.

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Closeup of a copper-colored pulley dangling from a carabiner with a bright blue cord passing through it.

What is a simple machine? A device that can make work easier, make work faster, or change direction of force. Uses animated and real examples to illustrate three of the six simple machines: the lever, wheel and axle, and pulley. Defines terms associated with each, and gives several everyday examples. Summarizes content at the end.

Media Details

Runtime: 15 minutes

Topic: Science
Subtopic: Physics, Simple Machines
Grade/Interest Level: 6 - 12
Standards:

Release Year: 1998
Producer/Distributor: Cambridge Educational
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Thin tubular object protruding from a machine casing descends perpendicular to a piece of wood laying horizontally below it. Caption: That's right; he's using a power tool called a drill.

Two children on a teeter totter. Caption: Fulcrums play an important role in the actions of a lever.

Two children on a teeter totter. Spanish captions.

People climbing up a staircase. Caption: Inclined planes make it easier to move objects.

A spiral car ramp. Spanish captions.

Children on a teeter totter. Caption: A 1st class lever is where the fulcrum is in the center,

Two children on a teeter totter. Spanish captions.

A man using a pulley. Caption: The other end of the rope is left free to be pulled on.

Close up of a man using a pully. Spanish captions.

A large screw drilling into the snow. Caption: Screws are handy when it comes to making holes in objects.