MYP Physics · 05 · data analysis
Solar backpack efficiency
Work, energy and power · Original GioPhysics question with a detailed, mark-by-mark answer guide.
- Demand
- routine
- Marks
- 5
- Topics
- 1
- Answer
- Complete
Question5 marks
A solar panel receives 240 J of light energy each second and supplies 42 J of electrical energy each second. Calculate its efficiency and account for the rest.
Task interpretation
What a complete response should do
Identify the useful evidence, process it with units, and make only the conclusion the data supports.
Name the standard relationship first, keep units attached, and show the substitution before the result.
- Response type
- data analysis
- Allocation
- 5 marks
- Demand
- routine
Ready to check?Reveal answer and worked solution
Private on this device
How did this one feel?
Use your answer and the marking steps—not confidence alone—to choose.