Power describes the?
ARate of work or energy transfer
BEnergy stored at a height
CForce per unit surface area
DWork done per unit distance
Answer & Solution
Correct answer: A. Rate of work or energy transfer
Power measures how quickly work is done or energy is transferred.
Keep practising Work, Energy and Power
Browse all Work, Energy and Power questions for ICSE Class 8, or explore more Physics topics.
Related questions
B steadily lifts twice A's mass through half A's height in twice A's time. Useful lifting A gives 100 W for 5 s; B gives 40 W for 20 s. Which transfers more energy?A ball has KE 20 J and GPE 30 J. With no losses, GPE falls to 10 J. New KE?A body drops from rest through 5 m without air resistance. Final speed? g = 10 m/s².Unequal masses have equal GPE above ground. Dropped from rest without air, faster at grounBodies of 4 kg and 1 kg have equal kinetic energy. Speed ratio heavy:light?Mass becomes three times as large and speed halves. Kinetic energy becomes?A 50 W device runs for 3 minutes at that power. Energy transferred?