Advertisements
Advertisements
Question
Name the CGS unit of work.
Advertisements
Solution
The CGS unit of work is ‘erg’.
APPEARS IN
RELATED QUESTIONS
Look at the activity below. Reason out whether or not work is done in the light of your understanding of the term ‘work’.
A sailboat is moving due to wind energy.
A coolie does no work against the force of gravity while carrying a luggage on a road.
The S.I. unit of energy is .............
Is work a scalar or a vector quantity?
Fill in the blank with suitable word :
Work is measured as a product of __________ and __________
A machine raises a load of 750 N through a height of 16 m in 5s. calculate:
(i) work done by machine,
(ii) power at which the machine works.
An electric motor drives a machine which lifts a mass of 4 kg through a height of 10 m in 5 s at a constant speed. Assuming g = 10 ms-2, calculate
(i) the amount of work done, (ii) the power of the machine.
State the energy changes which take place when A piece of magnesium wire is burnt in a jar of oxygen.
A force of F = (5y + 20) `hat"j"` N acts on a particle. The work done by this force when the particle is moved from y = 0 m to y = 10 m is ______ J.
