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Investigation 3

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  • a part of a machine that allows the axis to turn
    bearing
  • a measuring system including cm and m
    metric system
  • a limitation in an experiment is call a
    constraint
  • A student wants to test if different wheels affect how far a cart will travel, describe what the student should do after they have selected their carts.
    - Use a standard release height -Release cars without an extra push -Measure all cars the same way (ex: from front of car) -Use meter tapes to find the distance
  • a unit that never changes
    standard unit
  • A student wants to test if different wheels affect how far a car will travel, he is going to roll his cart twice. What variable should change?
    First run the wheels should be the same size, second run wheels should change size.
  • A students wants to test if different wheels affect how far the cart will travel, what is one of the standards?
    starting position of the cart, releasing not pushing the cart, or measure the carts using the same standard unit (cm or m)
  • a rule for testing
    criterion
  • What cause and effect relationship can be described from the data?
    The higher the ramp is, the further the cart will go
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