English

Define 1 Joule of Work. - Science

Advertisements
Advertisements

Question

Define 1 joule of work.

One Line Answer
Short Note

Solution

Joule is the SI unit of work. Work done is said to be of 1 Joule when a force of 1 Newton moves a body by 1 m along the direction of the force applied.

shaalaa.com
  Is there an error in this question or solution?
Chapter 4: Work and energy - Very Short Answers 1 [Page 145]

APPEARS IN

Lakhmir Singh Physics (Science) [English] Class 9 ICSE
Chapter 4 Work and energy
Very Short Answers 1 | Q 4 | Page 145

Video TutorialsVIEW ALL [1]

RELATED QUESTIONS

What is the work done by the moon when it revolves around the earth?


A body, when acted upon by a force of 10 kgf, moves to a distance 0.5 m in the direction of force. Find the work done by the force. Take 1 kgf = 10 N.


When is work said to be done by a force?


In which of the following cases, is work being done?
(i) A man pushing a wall.
(ii) a coolie standing with a load of 12 kgf on his head.
(iii) A boy climbing up a staircase.


State the law of conservation of energy.


How much work is done when a force of 1 N moves a body through a distance of 1 m in its own direction?


Why is the work done on an object moving with uniform circular motion zero?


Choose one or more correct alternatives.

Joule is the unit of ______.

  1. force
  2. work
  3. power
  4. energy

Name the type of energy possessed by a moving bullet.

Name the type of energy possessed by a
(i) stretched catapult        (ii) hot iron
(iii) wound up clock


Define the unit 'watt'. How is it related to horse power?

A woman pulls a bucket of water of total mass 5 kg from a well which is 10 s. calculate the power used by her.


Fill in the boxe to show the corresponding energy transformation.


Define force. Is force a scalar or a vector quantity?


A coolie, with a load of 30 kg on his head, walks on the platform. If he walks a distance of 60 m, what is the work done by him?


In the following case write yes, if the work is being done and no if no work is being done.

A coolie standing with a heavy load on his head


State the amount of work done by an object when it moves in a circular path for one complete rotation. Give a reason to justify your answer.


A man climbs a slope and another walks same distance on level road. Which of the two expends more energy and why?


What are the advantages and disadvantages of using solar cells for producing electricity?


Who is the odd one out?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×