Question detail
What is the formula to express efficiency as a percentage?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
Question
Type
exam_style
Style
Topic
Conservation and dissipation of energy
Question
What is the formula to express efficiency as a percentage?
Answer
Efficiency as a percentage is calculated using the formula: Efficiency (%) = (Useful energy output / Total energy input) x 100.
Explanation
This question tests the student's understanding of how to express efficiency in percentage terms, which is a key concept in evaluating energy transfers in systems.
Common mistake
Confusing Efficiency Representation
Students often express efficiency as a decimal instead of a percentage, leading to incorrect answers.
To express efficiency as a percentage, multiply the decimal value by 100.
Related flashcards
Flashcard 1 of 5
Related practice questions
Question 1 of 5
Choose an answer, get feedback, then move sideways through the set.