MYP Physics · 18 · structured
Battery for the evening peak
Climate and energy systems · Original GioPhysics question with a detailed, mark-by-mark answer guide.
- Demand
- discriminating
- Marks
- 6
- Topics
- 1
- Answer
- Complete
Question6 marks
A community needs 120 kW for 3.0 h after sunset. A battery system is 85% efficient from stored energy to delivered energy. Find the minimum stored energy needed.
Task interpretation
What a complete response should do
Build a visible chain from the information given to the quantity or statement requested.
Make assumptions explicit, connect several ideas, and test whether the final result is physically reasonable.
- Response type
- structured
- Allocation
- 6 marks
- Demand
- discriminating
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