Learning objective
Convert efficiency values between decimals and percentages.
Read the explanation, check the common trap, then practise with flashcards and questions.
At a glance
5
Flashcards
7
Questions
Topic
Conservation and dissipation of energy
Subtopic
Efficiency
Study support
Understand this objective
Short explanation
Efficiency is a measure of how effectively energy is converted from one form to another. It can be expressed as a decimal or a percentage. To convert a decimal efficiency value to a percentage, multiply the decimal by 100. For example, an efficiency of 0.85 as a decimal is equivalent to 85% when converted. Conversely, to convert a percentage to a decimal, divide the percentage by 100. Understanding these conversions is essential for evaluating the performance of energy systems and identifying areas for improvement.
Key concepts
Why it matters
This objective helps connect Efficiency to exam-style questions, flashcards, and revision notes for Conservation and dissipation of energy.
Common mistakes
1 linked- Confusing Efficiency Formats: To fix this, remember to multiply the decimal efficiency by 100 to convert it to a percentage.
Revision tools
Choose how to practise
Flashcards5 linked cards
Flashcard 1 of 5
Practice Questions7 linked questions
Question 1 of 7
Choose an answer, get feedback, then move sideways through the set.
Revision notestopic notes
Open the full topic revision notes when you are ready to review this objective in context.
Open revision notesRelated learning objectives
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