Levers GIZMO assesement answers
.docx
School
Palo Verde High School**We aren't endorsed by this school
Course
SCIENCE II
Subject
Physics
Date
Dec 17, 2024
Pages
5
Uploaded by ConstableTank15935
1.Where would you push or pull on the lever shown to lift the sheep most easily?YOUR ANSWER CORRECTPoint A2.EXPLANATION3.Point A is the farthest point from the fulcrum, so pulling on the lever there would lift the sheep most easily.4.Top5.The strongman lifts the pig by pulling down at position 1. How will the distance that he pulls down compare to the distance that the pig moves up?
YOUR ANSWER CORRECTThe distance that the pig moves up will be less than the distance that the strongman pulls down.6.EXPLANATION7.The strongman is further from the fulcrum than the pig is, so the distance that he pulls down will be greater than the distance that the pig moves up.8.Top9.The turkey weighs 100 N. If the strongman pushes on the lever at position 1, what is the smallest effort that he would need to lift the turkey?
YOUR ANSWER CORRECTjust over 100 N10.EXPLANATION11.The turkey is 2 meters from the fulcrum. If the strongman pushes on the lever at position 1, he will be pushing at a spot that is also 2 meters from the fulcrum. Therefore, he will have to push down with a force that is just greater than the weight of the turkey, 100 N. (This situation shows a mechanical advantage of 1.)12.Top13.What type of lever is shown below?
YOUR ANSWER CORRECTThird-class lever14.EXPLANATION15.The strongman (effort) is between the load (turkey) and the fulcrum. This is a third-class lever. (Note: There is no such thing as a fourth-class lever!)16.Top17.The goat weighs 900 N and is 1 meter from the fulcrum. The strongman pulls down on the lever 3 meters from the fulcrum. What is the smallest effort that the strongman can use to lift the goat?
YOUR ANSWER CORRECTjust over 300 N18.EXPLANATION19.The goat is 1 meter from the fulcrum, and the strongman is 3 meters from the fulcrum. The mechanical advantage of the lever will be 3. The effort needed to liftthe goat will be just over one-third the weight of the goat, in this case just over 300 newtons.