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    Lever Elementary Activity

    Uploaded by

    Deepa Ambaji Rao
    This document provides instructions for an elementary science experiment to demonstrate how a lever can help lift objects heavier than one's own weight. The experiment uses pencils and pennies to create a simple lever and tests how balancing points change when weight is distributed unevenly on the lever. It concludes by asking how a seesaw could be set up to lift a friend or heavy rock using this principle of the lever providing a mechanical advantage.

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    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd

    Lever Elementary Activity

    Uploaded by

    Deepa Ambaji Rao
    70 views1 page
    This document provides instructions for an elementary science experiment to demonstrate how a lever can help lift objects heavier than one's own weight. The experiment uses pencils and pennies to create a simple lever and tests how balancing points change when weight is distributed unevenly on the lever. It concludes by asking how a seesaw could be set up to lift a friend or heavy rock using this principle of the lever providing a mechanical advantage.

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    Elementary

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    This document provides instructions for an elementary science experiment to demonstrate how a lever can help lift objects heavier than one's own weight. The experiment uses pencils and pennies to create a simple lever and tests how balancing points change when weight is distributed unevenly on the lever. It concludes by asking how a seesaw could be set up to lift a friend or heavy rock using this principle of the lever providing a mechanical advantage.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    70 views1 page

    Lever Elementary Activity

    Uploaded by

    Deepa Ambaji Rao
    This document provides instructions for an elementary science experiment to demonstrate how a lever can help lift objects heavier than one's own weight. The experiment uses pencils and pennies to create a simple lever and tests how balancing points change when weight is distributed unevenly on the lever. It concludes by asking how a seesaw could be set up to lift a friend or heavy rock using this principle of the lever providing a mechanical advantage.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    of 1

    ELEMENTARY EXPLORATION: Simple Machines: Lever

    Background: You and your best friend are on the playground. Your friend weighs 100 pounds and you
    weigh 50 pounds. He dares you to lift him and hold him up for 5 minutes. A simple
    machine called a lever can help you.
    Question: Can you lift an object much heavier than you are?
    Hypothesis: I think I ...
    Materials: 2 pencils (hexagonal - not round)
    3 pennies
    Tape
    Ruler
    Procedure:
    1. Make a lever with two pencils. Tape one penny to each end of the top pencil.
    2. Move the top pencil until the lever is balanced. Measure the distances from the middle of each
    penny to the fulcrum. Are the distances the same?
    3. Tape two pennies to one end of the top pencil and one penny to the other end.
    4. Move the top pencil until the lever is balanced. Measure the distances from the middle of the
    pennies to the fulcrum. Which distance is longer?

    Conclusion: How would you set up a seesaw so that you can lift your friend?

    If you want to lift a 200 pound rock, how would you set up a seesaw?

    The top pencil is the LEVER.


    The bottom pencil is the FULCRUM.

    Energy Exchange – Sept 2002 The NEED Project PO Box 10101 Manassas, VA 20108 1-800-875-5029

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