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Class 9 Science Solutions English Medium
Download latest NCERT Solutions for Class 9 based on CBSE 2026-27 syllabus. Get chapter-wise detailed explanations, step-by-step answers, important questions and exam-ready study material in Hindi and English medium.
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Class 9 Science Solutions English Medium
NCERT Solutions for Class 9 are specially prepared according to the latest CBSE syllabus (2026-27) to help students understand every concept clearly. These solutions provide step-by-step explanations, accurate answers, and exam-oriented guidance for all chapters. Class 9 students can improve their problem-solving skills, strengthen conceptual understanding, and prepare confidently for school as well as board examinations. All questions are solved in a simple and easy-to-understand language for both Hindi and English medium learners.
Class 9 Science Solutions English Medium
NCERT Solutions Class 9 Science English Medium
11. Work and Energy
Topic: Potential Energy
Potential Energy: The energy stored in an object by changing its position is called potential energy.
It is a type of mechanical energy.
Examples of potential energy:
(I) Stored water in dam
(II) Wound up spring of a toy car
(III) Stretched the string of a bow with arrow
(IV) Stretched a rubber band
(V) Lifted up a hammer
(VI) Lifeted up any object at height
Factors which affecting the potential energy:
(i) Mass : Increasing of mass of an object causes greater potential energy.
(ii) Height from ground: Increasing the height of an object gives greater potential energy.
(iii) Change in shape: Streching, bending or twisting an object gives greater potential energy.
The Gravitational Potential Energy:
An object increases its energy when raised through a height. This is because work is done on it against gravity while it is being raised. The energy present in such an object is the gravitational potential energy.
(i) When an object is lifted up or raised up it works against the gravity. As it raised up at height it gains the potential energy.
(ii) The work done by gravity depends on the difference in vertical heights of the initial and final positions of the object and not on the path along which the object is moved.
(iii) The object gains energy equal to the work done on it.
POTENTIAL ENERGY OF AN OBJECT AT A HEIGHT
Consider an object of mass, m. Let it be raised through a height, h from the ground.
displacement = h
mass of the object = m
The minimum force required to raise the object is equal to the weight of the object = mg ( f = ma or mg) g is the acceleration due to gravity.
work done, W = force × displacement
= mg × h
= mgh
Since work done on the object is equal to mgh, an energy equal to mgh units is gained by the object. This is the potential energy (EP) of the object.
∴ EP = mgh
Example1: Find the energy possessed by an object of mass 10 kg when it is at
a height of 6 m above the ground. Given, g = 9.8 m s–2.
Solution:
Mass of the object, m = 10 kg,
displacement (height), h = 6 m, and
acceleration due to gravity, g = 9.8 m s–2.
Potential energy = mgh
= 10 kg × 9.8 m s–2 × 6 m
= 588 J.
The potential energy is 588 J.
NCERT Solutions Class 9 Hindi and English Medium – Complete Study Material
NCERT Solutions Class 9 students ke liye specially CBSE latest syllabus (2026-27) ke according prepare kiye gaye hain. Yeh solutions Hindi aur English medium dono ke liye available hain, jisse har student apni language preference ke hisaab se padh sakta hai. Har chapter ke sabhi prashnon ke step-by-step answers diye gaye hain jo concept clarity aur exam preparation me madad karte hain.
Chapter-Wise Detailed Explanations
Class 9 ke liye diye gaye Chapter Wise NCERT Solutions me har question ka detailed aur easy explanation diya gaya hai. Chahe aap CBSE Board Exam Preparation kar rahe ho ya school test ke liye revise kar rahe ho, yeh solutions aapko complete understanding denge. Har answer simple language me likha gaya hai jisse students concepts ko easily grasp kar saken.
Hindi and English Medium Support
Students Hindi aur English medium dono me NCERT Book Solutions Class 9 access kar sakte hain. Yeh dual language support un students ke liye helpful hai jo apni regional language me better samajhna chahte hain. Sabhi answers CBSE Latest Syllabus 2026-27 ke anusaar update kiye gaye hain.
Important Features of NCERT Solutions
- Class 9 NCERT Solutions PDF
- CBSE Class 9 Study Material
- NCERT Book Questions and Answers
- Exam Oriented Important Questions
- Step-by-Step Detailed Solutions
- Concept Clarity and Revision Notes
Why Students Should Use NCERT Solutions?
Aaj ke competitive environment me sirf textbook padhna kaafi nahi hota. NCERT Solutions for Class 9 students ko practice aur conceptual understanding dono provide karte hain. Yeh solutions unhe exam pattern samajhne, frequently asked questions practice karne aur high score achieve karne me madad karte hain. Regular practice se students apne weak topics ko improve kar sakte hain.
Best Resource for Exam Preparation
Agar aap Class 9 CBSE Preparation ke liye ek trusted aur reliable source dhundh rahe hain, to yeh NCERT Solutions perfect choice hain. Yeh study material school exams, unit tests, half-yearly aur annual exams ke liye equally useful hai. Har chapter ke answers accurate, verified aur student-friendly format me diye gaye hain.
Isliye agar aap NCERT Solutions Class 9 Hindi and English Medium search kar rahe hain, to yahan aapko complete chapter-wise solutions milenge jo aapki academic journey ko strong aur confident banayenge.