Breaking News
Join telegram chanel https://t.me/GradeupEarning Make money online 100% legal

NCERT Solutions Class 9 Maths Chapter 11 Work And Energy – Here are all the NCERT solutions for Class 9 Maths Chapter 11. This solution contains questions, answers, images, explanations of the complete Chapter 11 titled The Fun They Had of Maths taught in class 9. If you are a student of class 9 who is using NCERT Textbook to study Maths, then you must come across Chapter 11 Work And Energy. After you have studied lesson, you must be looking for answers of its questions. Here you can get complete NCERT Solutions for Class 9 Maths Chapter 11 Work And Energy in one place.

NCERT Solutions Class 9 Science Chapter 11 Work And Energy

Here on AglaSem Schools, you can access to NCERT Book Solutions in free pdf for Science for Class 9 so that you can refer them as and when required. The NCERT Solutions to the questions after every unit of NCERT textbooks aimed at helping students solving difficult questions.

For a better understanding of this chapter, you should also see summary of Chapter 11 Work And Energy , Science, Class 9.

Class 9
Subject Science
Book Science
Chapter Number 11
Chapter Name

Work And Energy

NCERT Solutions Class 9 Science chapter 11 Work And Energy

Class 9, Science chapter 11, Work And Energy solutions are given below in PDF format. You can view them online or download PDF file for future use.

Work And Energy Download

NCERT Solutions for Class 9 Science Chapter 11 Work and Energy Download

Did you find NCERT Solutions Class 9 Science chapter 11 Work And Energy helpful? If yes, please comment below. Also please like, and share it with your friends!

NCERT Solutions Class 9 Science chapter 11 Work And Energy- Video

You can also watch the video solutions of NCERT Class9 Science chapter 11 Work And Energy here.

Video – will be available soon.

If you liked the video, please subscribe to our YouTube channel so that you can get more such interesting and useful study resources.

Download NCERT Solutions Class 9 Science chapter 11 Work And Energy In PDF Format

You can also download here the NCERT Solutions Class 9 Science chapter 11 Work And Energy in PDF format.

Click Here to download NCERT Solutions for Class 9 Science chapter 11 Work And Energy

Question & Answer

Q.1: A force of 7 N acts on an object. The displacement is, say 8 m, in the direction of the force (Fig. 11.3). Let us take it that the force acts on the object through the displacement. What is the work done in this case?

Ans : When a force F acts on an object to displace it through a distance S in its direction, then the work done W on the body by the force is given by: Work done = Force × Displacement W = F × S Where, F = 7 N S = 8 m Therefore, work done, W = 7 × 8 = 56 Nm = 56 J
Q.2: When do we say that work is done?

Ans : Work is done whenever the given conditions are satisfied: (i) A force acts on the body. (ii) There is a displacement of the body caused by the applied force along the direction of the applied force.
Q.3: Write an expression for the work done when a force is acting on an object in the direction of its displacement.

Ans : When a force F displaces a body through a distance S in the direction of the applied force, then the work done W on the body is given by the expression: Work done = Force × Displacement W = F × s
Q.4: Define 1 J of work.

Ans : 1 J is the amount of work done by a force of 1 N on an object that displaces it through a distance of 1 m in the direction of the applied force.
Q.5: A pair of bullocks exerts a force of 140 N on a plough. The field being ploughed is 15 m long. How much work is done in ploughing the length of the field?

Ans : Work done by the bullocks is given by the expression: Work done = Force × Displacement W = F × d Where, Applied force, F = 140 N Displacement, d = 15 m W = 140 × 15 = 2100 J Hence, 2100 J of work is done in ploughing the length of the field.

NCERT / CBSE Book for Class 9 Science

You can download the NCERT Book for Class 9 Science in PDF format for free. Otherwise you can also buy it easily online.

  • Click here for NCERT Book for Class 9 Science
  • Click here to buy NCERT Book for Class 9 Science

All NCERT Solutions Class 9

All NCERT Solutions

You can also check out NCERT Solutions of other classes here. Click on the class number below to go to relevant NCERT Solutions of Class 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12.

Class 4 Class 5 Class 6
Class 7 Class 8 Class 9
Class 10 Class 11 Class 12

Download the NCERT Solutions app for quick access to NCERT Solutions Class 9 Science Chapter 11 Work And Energy. It will help you stay updated with relevant study material to help you top your class!

Previous Next

The post NCERT Solutions for Class 9 Science Chapter 11 Work And Energy appeared first on AglaSem Schools.



from AglaSem Schools https://ift.tt/3sOp8wD
https://ift.tt/2WpQLjm https://ift.tt/2WpQLjm

Post a Comment

أحدث أقدم