Activity A Mechanical advantage Get the Gizmo ready Select the 1 fixed pulley

Activity a mechanical advantage get the gizmo ready

This preview shows page 2 - 5 out of 8 pages.

Get the Gizmo ready: Select the 1 fixed pulley configuration.Set the Weightto 60 N and Efficiency 100%.You will need a calculator for this activity. to Question: What is the mechanical advantage of each pulley system?
Predict: How will adding more pulleys affect the input force needed to lift the load? Gather data: With the Weightset to 60 N and the Efficiency set to 100%, find the minimum input force needed to lift the load with each system. Fill in the table below. Include units. Pulley system Weight (N) Minimum input force (N) 1 fixed 60 N 61 N 1 fixed, 1 moveable 60 N 31N 2 fixed, 2 moveable 60 N 16N 3 fixed, 3 moveable 60 N 11N Summarize: How does the minimum input change as you add more pulleys to the system? Adding more alleys means the minimum input force will decrease Analyze: Compare the input force to the number of pulleys in each system. Do you see a pattern? If so, describe it: The pattern is half the pervious number. Apply: How much force do you think would be needed to lift a 100-N load with a pulley system composed of two fixed and two moveable pulleys? __ 27N ________________________ Check your answer with the Gizmo. How much force was actually needed? ______ 28N _______ (Activity A continued on next page)

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture