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Stress and strain
Calculate stress and strain in a loaded member and use a factor of safety to decide whether it will fail.
⏱ 20 min❓ 8 questions
What you'll be able to do
- ✔I can calculate stress from load and cross-sectional area
- ✔I can calculate strain and describe how a material behaves in a tensile test
- ✔I can use a factor of safety to judge whether a member is safe
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.
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Curriculum: AC9TDE10K03