Part A: What is the efficiency of a simple machine if it puts out 400J of energy for every 1320J done on the machine? Leave your answer as a percentage and round to the nearest tenth.

Question

Part A: What is the efficiency of a simple machine if it puts out 400J of energy for every 1320J done on the machine? Leave your answer as a percentage and round to the nearest tenth.

Efficiency=(Output Work/Input Work) x 100%

Part B: Choose ONE of the simple machines listed below and tell me in 1-2 sentences how you would improve the efficiency of that machine? You should include the answer from Part A in your response here because the efficiency in Part A is the efficiency of the machine you picked. You don't need to tell me about all of them; choose the one that your are most knowledgeable about.
Choose one of:
1. Pulley
2. Inclined Plane
3. Lever

To receive full credit for this item, your response must:
Correctly calculate the efficiency of a simple machine and leave your answer as a percentage rounded to the nearest tenth. You will lose a point if the answer is not written as a percentage rounded to the nearest tenth (2pts.)

Answer 1

Part A:

Efficiency=(Output Work/Input Work) x 100%
Efficiency=(400J/1320J) x 100%
Efficiency=0.303 x 100%
Efficiency=30.3%

Part B:

If I were to choose the lever as the simple machine, I would improve its efficiency by reducing friction at the pivot point. This can be achieved by using lubricants or smoother materials at the pivot point. Additionally, ensuring that the lever is properly balanced and aligned can also help increase its efficiency. By implementing these improvements, the efficiency of the lever can be maximized, potentially increasing the output work for the same input work.

Answer 2

can you make it shorter

Answer 3

Part A:

Efficiency= (400J/1320J) x 100%
Efficiency= 30.3%

Part B:

To improve the efficiency of a lever, reduce friction at the pivot point by using lubricants or smoother materials, and ensure proper balance and alignment. Increasing efficiency will result in higher output work for the same input work.

Answer 4

What is the efficiency of a simple machine if it puts out 400J of energy for every 1320J done on the machine? For Inclined Plane

Answer 5

Part A:

Efficiency = (Output Work / Input Work) x 100%
Efficiency = (400J / 1320J) x 100%
Efficiency = 0.303 x 100%
Efficiency = 30.3%

For an inclined plane, the efficiency would be 30.3%.