Grade 11 Energy, work & power worksheet in three levels
The same 20-question worksheet on energy, work & power in Support, Core and Challenge versions. Question by question, each version keeps the topic and changes the difficulty.
Easier questions on the same topics, for students who need more practice with the basics.
Questions
20 (20 medium)
Grade range
Grades 8 to 11
Topics
Energy, work & power
Sample questions
A device receives 640 J and has useful-energy efficiency 10%. Find the useful output energy. Round to 3 decimal places if needed. Answer in J.
A device receives 130 J and has useful-energy efficiency 55%. Find the useful output energy. Round to 3 decimal places if needed. Answer in J.
A device receives 1430 J and has useful-energy efficiency 90%. Find the useful output energy. Round to 3 decimal places if needed. Answer in J.
Core
Questions at the expected level for the grade.
Questions
20 (20 medium)
Grade range
Grades 8 to 11
Topics
Energy, work & power
Sample questions
A device receives 1100 J and has useful-energy efficiency 25%. Find the useful output energy. Round to 3 decimal places if needed. Answer in J.
A device receives 1130 J and has useful-energy efficiency 85%. Find the useful output energy. Round to 3 decimal places if needed. Answer in J.
A device receives 950 J and has useful-energy efficiency 25%. Find the useful output energy. Round to 3 decimal places if needed. Answer in J.
Challenge
Harder questions on the same topics, for students who are ready to stretch.
Questions
20 (20 challenge)
Grade range
Grades 9 to 12
Topics
Energy, work & power
Sample questions
A constant 55 N force acts through a 10 m displacement. The cosine of the angle between them is -1. Find the work by this force. Round to 3 decimal places if needed. Answer in J.
A constant 100 N force acts through a 20 m displacement. The cosine of the angle between them is -1. Find the work by this force. Round to 3 decimal places if needed. Answer in J.
A constant 103 N force acts through a 6 m displacement. The cosine of the angle between them is 0.5. Find the work by this force. Round to 3 decimal places if needed. Answer in J.
Using the three versions
Start everyone with the same short explanation, then hand out Support, Core or Challenge.
Question numbers line up across the versions, so you can go through the answers with the whole class.
The PDF has a cover page and each version on its own pages; the answer keys PDF has all three keys.