✨ Free preview
⚙️
Mechanical advantage
Calculate mechanical advantage, velocity ratio and efficiency for levers, pulleys and gears.
⏱ 20 min❓ 8 questions
What you'll be able to do
- ✔I can calculate mechanical advantage from load and effort
- ✔I can calculate velocity ratio for levers, pulleys and gear trains
- ✔I can calculate the efficiency of a machine and explain why it is below 100%
How this works
- 1Read the short explanations first — they teach you what you need before each question.
- 2Answer each question, then tap Check. A right answer moves you on automatically; if it's wrong, you'll see a friendly explanation of why.
- 3Finish all 3 steps to see your score — sign in and subscribe to unlock the full lesson and save it.
What's inside
8 questions and 1 quick teaching card, including:
- 🔢Number answer — Work out the answer and type the number.
👪Grown-up tip: sit alongside younger learners for the first few lessons. Read the questions together and chat about the explanations — that's where the real learning sticks.
Sign in and subscribe to unlock the full lesson and save your progress.
Curriculum: AC9TDE10K03