Unit of Work
Unit of Work
Unit of Work: Work done is the product of force and displacement. Using the SI units of force and displacement, i.e., Newton and metre respectively, the unit of work comes out to be ‘Newton metre’. This is given a separate name, Joule, in honour of the British scientist James Prescott Joule. The symbol of joule is J.
Define one joule: When a force of 1 N acts on an object and the object moves a distance of 1 m in the direction of the force, the work done by the force is 1 J.
Other units of work: In c.g.s system of measurement force in dyne,displacement in cm, work is measured in erg.
From W = Fs
If F= 1 dyne, s = 1 cm, then W = 1 erg
Thus, if a force of 1 dyne, displaces the point of application, by 1 cm, in the direction of force, the work done by the force is said to be 1 dyne.
Relation between 1 joule and erg is as follows:
1joule = 1N x 1m
Higher uint of work are kJ =
1 joule = 1_______ | |||
| Right Option : C | |||
| View Explanation | |||
Which of the following is a unit of work done? | |||
| Right Option : D | |||
| View Explanation | |||
The unit Ns is equivalent to | |||
| Right Option : B | |||
| View Explanation | |||
Students / Parents Reviews [10]
My experience with Abhyas academy is very good. I did not think that my every subject coming here will be so strong. The main thing is that the online tests had made me learn here more things.
Hiya Gupta
8thMy experience was very good with Abhyas academy. I am studying here from 6th class and I am satisfied by its results in my life. I improved a lot here ahead of school syllabus.
Ayan Ghosh
8thAbhyas is a complete education Institute. Here extreme care is taken by teacher with the help of regular exam. Extra classes also conducted by the institute, if the student is weak.
Om Umang
10thIt was a good experience with Abhyas Academy. I even faced problems in starting but slowly and steadily overcomed. Especially reasoning classes helped me a lot.
Cheshta
10thOne of the best institutes to develope a child interest in studies.Provides SST and English knowledge also unlike other institutes. Teachers are co operative and friendly online tests andPPT develope practical knowledge also.
Aman Kumar Shrivastava
10thBeing a parent, I saw my daughter improvement in her studies by seeing a good result in all day to day compititive exam TMO, NSO, IEO etc and as well as studies. I have got a fruitful result from my daughter.
Prisha Gupta
8thIt has a great methodology. Students here can get analysis to their test quickly.We can learn easily through PPTs and the testing methods are good. We know that where we have to practice
Barkha Arora
10thIt was good as the experience because as we had come here we had been improved in a such envirnment created here.Extra is taught which is beneficial for future.
Eshan Arora
8thA marvelous experience with Abhyas. I am glad to share that my ward has achieved more than enough at the Ambala ABHYAS centre. Years have passed on and more and more he has gained. May the centre flourish and develop day by day by the grace of God.
Archit Segal
7thAbout Abhyas metholodology the teachers are very nice and hardworking toward students.The Centre Head Mrs Anu Sethi is also a brilliant teacher.Abhyas has taught me how to overcome problems and has always taken my doubts and suppoeted me.
