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Class 11 Physics — Chapter 6: Work, Energy and Power
66 practice questions · 22 Easy · 22 Medium · 22 Hard
Free NCERT-aligned multiple-choice practice for Class 11 Physics, Chapter 6 (Work, Energy and Power). Practise timed Easy, Medium and Hard quizzes with instant explanations — built for CBSE Board exams, JEE Main and NEET UG. Here are a few sample questions; sign in free to practise all 66.
Sample questions
Q1Easy
SI unit of work and energy:
A.Newton
B.Joule✓ correct
C.Watt
D.Pascal
Why
1 J = 1 N·m.
Q2Medium
SI unit of power:
A.Joule
B.Watt (J/s)✓ correct
C.Newton
D.Pascal
Why
Power = work/time.
Q3Hard
Work-energy theorem: Net work =
A.Change in KE✓ correct
B.Total energy
C.Heat
D.Mass × velocity
Why
W_net = ΔKE.
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