Question
Force and Work Unit Test
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Question
What is the efficiency of a ramp if 2,000 joules of energy results in 1,200 joules of work?(1 point)
Responses
80%
80%
32%
32%
24%
24%
60%
60%
Answers
GPT-4o mini
To calculate the efficiency of the ramp, you can use the formula:
\[
\text{Efficiency} = \left(\frac{\text{Output Work}}{\text{Input Energy}}\right) \times 100
\]
In this case, the output work is 1,200 joules, and the input energy is 2,000 joules. Plugging in the numbers:
\[
\text{Efficiency} = \left(\frac{1,200 \text{ J}}{2,000 \text{ J}}\right) \times 100
\]
\[
\text{Efficiency} = \left(0.6\right) \times 100 = 60\%
\]
So, the efficiency of the ramp is **60%**.
\[
\text{Efficiency} = \left(\frac{\text{Output Work}}{\text{Input Energy}}\right) \times 100
\]
In this case, the output work is 1,200 joules, and the input energy is 2,000 joules. Plugging in the numbers:
\[
\text{Efficiency} = \left(\frac{1,200 \text{ J}}{2,000 \text{ J}}\right) \times 100
\]
\[
\text{Efficiency} = \left(0.6\right) \times 100 = 60\%
\]
So, the efficiency of the ramp is **60%**.