Understanding Tools and Machines

Mini-Quiz: Increasing Distance Moved with a Lever

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Take this Mini-Quiz to check your understanding of the lesson material.

QUIZ

Self-check your understanding

What is an advantage of using a Class 3 lever to lift an object to some height?
The output height or distance can be greater than the input distance.That is correct. You know about levers. You exert more force by pushing downSorry, not correct. Try another button. You can lift heavier loadsGood try, but not right. Select another answer.
What is DO/DI equal to?
The length of the load armOops! Wrong answer. Re-read the question and try again. 125 mCorrect. You are very efficient! Distance mechanical advantageSorry, not correct. Try another button.
If the input arm is 1 meter long and the output arm is 2 meters long, how much must the effort move to lift the load 2 m?
2 mOops! Wrong answer. Re-read the question and try again. 1 mThat is correct. You know about levers. 0.5 mGood try, but not right. Select another answer.

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If you got all three correct, you are on your way to becoming a Champion in Understanding Machines. If you had problems, you had better look over the material again.

Lift yourself up to great heights

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Self-check your understanding

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