The graph below shows the efficiency of three pulleys used at a construction site to lift large loads around the site. Compare pulleys A, B, and C. Which pulley has the HIGHEST mechanical advantage? HINT, use your knowledge of efficiency.
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the answers are here i did the test so yea
1. Student A: Takes two popsicle sticks that act as levers and attaches a fulcrum to them to serve as a pivot. At the other end of the fulcrum, two wedges are attached to complete the machine.
2.Class 1 Lever
3. false
4.Both the single and compound pulleys change the direction of the force but only the compound pulley changes the distance of the force.
5.Walking down a smooth sidewalk.
6.0J
7.5500J.
8. Machine B
9. The wheelchair ramp changes the direction of the force and increases the distance of the force.
10. The Man = E. The Basket of the Wheelbarrow = L. The Wheel = F.
11.A vehicle that travels 48km on 6 liters of fuel.
12. Screwdriver
13. Pulley C.
14. do it yourself
To determine which pulley has the highest mechanical advantage, we need to look at the efficiency of each pulley.
Pulley A: Efficiency = Work output / Work input = 400 J / 100 J = 4
Pulley B: Efficiency = Work output / Work input = 200 J / 100 J = 2
Pulley C: Efficiency = Work output / Work input = 300 J / 100 J = 3
Based on the efficiency calculations, pulley A has the highest mechanical advantage with an efficiency of 4. This means that pulley A requires the least amount of input work to lift the load, making it the most efficient option among the three pulleys.