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• Vectors and Equilibrium
• Vectors are forces with a direction and a magnitude. A force, like gravity or friction, can also be thought of as a vector. The force of gravity on the earth pulls "downward", so it has a direction. The strength of gravity determines how much it acts on an object - its magnitude.
• A force can make an object move in its direction. If you push someone from behind, they move forward. If you push them to the side, they move sideways. This is why vectors are useful in describing motion: they show both direction and magnitude.
• Equilibrium occurs when all forces acting on an object cancel each other out. At equilibrium, the sum of all the forces acting on an object is zero. Objects at equilibrium will not accelerate; their velocity will not change.
• In natural equilibrium, each part of the system is in balance with every other part. Equilibrium is like a ball resting on a hill. A ball at the top of a hill is not in equilibrium, because there are no forces acting on it. But if you push it up the hill and then let go, gravity pulls it down until it reaches a point where the slope of the hill balances out the force of gravity: that's equilibrium.

• Motion and Force
• Work and Energy
• Rotation and Circular Motion
• Fluid Dynamics
• Oscillation
• Waves
• Physical Optics
• Thermodynamics

Let’s get down to the chapters and what they promise to teach in the textbook for class 11th Physics.

## Chapter 1 - Measurements

This chapter will clarify the following concepts regarding measurements:

• How can we classify the study of nature? What is Physics?
• Describe the main frontiers of the main fundamental science?
• What are physical quantities?
• Much more!
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• ##check##Chapter 1
• Content: Short and Long Answers | Solved Exercises | MCQs

## Chapter 2 - Vectors and Equilibrium

This chapter is an interesting addition to the book that will improve your outlook on a presumably boring subject. Look for the following ideas here:

• How is a vector represented?
• What is rectangular coordinate system
• How is the direction of vector represented in: (i) plane (2) space
• Much More!
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• ##check##Chapter 2
• Content: Short and Long Answers | Solved Exercises | MCQs

## Chapter 3 - Motion and Force

You might want to grab a few graph papers for this chapter. Its concepts include:

• Define and explain the following terms:
• Under the what condition body is said to be moving with uniform velocity
• What are Displacement time graphs? Discuss
• Much More!
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• ##check##Chapter 3
• Content: Short and Long Answers | Solved Exercises | MCQs

## Chapter 4- Work and Energy

It really gets engaging with every succeeding chapter. This chapter will explore ideas like:

• What do you understand by the term work? Explain.
• How much work is being done?
• How can we calculate the done by variable fore?
• Much More!
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• ##check##Chapter 4
• Content: Short and Long Answers | Solved Exercises | MCQs

## Chapter 5- Rotation and Circular Motion

How do satellites, balls, shuttles, planets and every rotating object work? Well, dig into this chapter to find out. The provided notes discover:

• Define and explain angular displacement. Show that radian =57.3
• Define and explain angular velocity?
• Define and explain angular acceleration?
• Much more
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• ##check##Chapter 5
• Content: Short and Long Answers | Solved Exercises | MCQs

## Chapter 6 - Fluid Dynamics

This chapter will undoubtedly enhance your interest in physics. Chapter 6 has notes like:

• What is the meant by term velocity? Explain fluid friction or drag force and state stock's Law.
• What is terminal velocity?
• What is difference between steady and turbulent flow?
• Much More
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• ##check##Chapter 6
• Content: Short and Long Answers | Solved Exercises | MCQs

## Chapter 7 - Oscillation

Oscillation and all its corollary ideas will be discussed in detail in this chapter. Key concepts include:

• Define Hook's Law and simple harmonic motion?
• Show that motion of mass attached with a spring is SHM.
• Define the following terms related to SHM. Wave form of Time period frequency
• Much More
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• ##check##Chapter 7
• Content: Short and Long Answers | Solved Exercises | MCQs

## Chapter 8- Waves

This Chapter 8 notes have:

• What are progressive waves? Give its types.
• What are periodic waves?
• What was Newton's formula for the speed of sound?
• Much more
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• ##check##Chapter 8
• Content: Short and Long Answers | Solved Exercises | MCQs

## Chapter 9 - Physical Optics

The second last chapter will discover ideas like:

• What is wave front?
• How can you obtain plane waves from a point source?
• Discuss the interference the light.
• Much more
• [message]
• ##check##Chapter 9
• Content: Short and Long Answers | Solved Exercises | MCQs

## Chapter 10 - Thermodynamics

Don’t leave this chapter for granted as it falls at the last place in the textbook. It’s equally important and engaging to read.

• State the postulates of kinetic molecule theory of grass?
• Discuss the term" thermodynamics ". Also describe the terms: System, Surrounding
• Write a note on internal energy and show that it is independent of the Path.
• Much more
• [message]
• ##check##Chapter 10
• Content: Short and Long Answers | Solved Exercises | MCQs

### [Preview Chapter 10 Online ##eye##]

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Top Study World: 11th Class Physics Notes for FBISE & Punjab (Updated 2021)
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