Advertisements
Advertisements
प्रश्न
How is energy stored in a clock?
एक पंक्ति में उत्तर
Advertisements
उत्तर
The work done in winding a clock spring is stored as P.E. in the spring. This P.E. is then used to run the hands of the clock.
shaalaa.com
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
APPEARS IN
संबंधित प्रश्न
A force acts on a body and displaces it by a distance S in a direction at an angle θ with the direction of the force. What should be the value of θ to get the maximum positive work?
State the S.I. unit of work and define it.
A boy of weight 40 kgf climbs up the 15 steps, each 15 cm high in 10 s and a girl of weight 20 kgf does the same in 5 s. Compare:
- the work done, and
- the power developed by them. Take g = 10 N kg-1.
If the work done by a force in moving an object through a distance of 20 cm is 24.2 J, what is the magnitude of the force?
Why is the work done on an object moving along a circular path zero?
If the speed of a particle is increased four times, how will its kinetic energy be affected?
Define potential energy.
A body does 20 J of work in 10 s. What is its power?
Name the CGS unit of work.
Fill in the boxe to show the corresponding energy transformation.
