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Dynamics and Mechanics is a core area of Class 11 & 12 CBSE Physics. Mastering this chapter requires memorizing and applying formulas effectively in motion, force, energy, momentum, and rotational dynamics. To excel in exams, students need a structured chapter‑wise formula PDF that saves time and improves problem-solving accuracy.
A Dynamics & Mechanics formula sheet PDF helps in consolidating all essential equations and concepts, including linear motion, Newton’s laws, work, power, energy, momentum, and rotational motion, in one easy-to-revise document.
► Click “Download Here” next to your subject to access the free PDF.
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1. Units, Constants, and Conversions |
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2. Mathematics |
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3. Dynamics and Mechanics |
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4. Quantum |
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5. Thermodynamics |
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6. Solid State |
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7. Electromagnetism |
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8. Optics |
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9. Astrophysics |
Access chapter‑wise formulas from StudentBro.in for Dynamics & Mechanics:
Dynamics & Mechanics Formula PDF: Dynamics and Mechanics Formulas
This link provides free downloadable PDFs and structured chapter-wise formulas for board exams and competitive exams. Students can use these resources for offline revision anytime.
What Is Mechanics
Mechanics is the branch of physics that studies the motion of objects and the forces acting on them. It helps explain everyday experiences such as walking, driving, throwing a ball, or the movement of planets.
Role of Dynamics in Mechanics
Dynamics is a part of mechanics that focuses on the causes of motion. It explains why objects start moving, stop moving, or change their speed or direction.
Concept of Motion
Motion occurs when an object changes its position with respect to time and surroundings. Whether an object is considered moving or at rest depends on the observer’s point of view.
Importance of Reference Point
A reference point helps determine motion accurately. Without a reference, motion cannot be properly described or measured.
Linear Motion
Linear motion refers to movement along a straight path. This type of motion is commonly observed in daily life, such as a car moving on a straight road.
Circular Motion
Circular motion occurs when an object moves along a circular path. This type of motion involves constant change in direction.
Oscillatory Motion
Oscillatory motion is repetitive to-and-fro movement about a fixed position. Examples are found in clocks, swings, and musical instruments.
Understanding Force
A force is a push or pull that results from interaction between objects. Forces can change the motion or shape of an object.
Effects of Force
Force can:
Change speed of an object
Change direction of motion
Deform an object
Bring a moving object to rest
First Law: Conceptual Meaning
This law explains why objects resist changes in their state of motion. It introduces the idea of inertia.
Second Law: Cause of Motion Change
This law explains how force affects the motion of an object and establishes the relationship between force and motion.
Third Law: Action and Reaction
This law explains that forces always act in pairs. Every action has an equal and opposite reaction.
Nature of Friction
Friction is a force that opposes relative motion between two surfaces in contact. It arises due to surface irregularities.
Advantages of Friction
Friction makes walking possible, allows vehicles to move, and helps objects stay in place.
Disadvantages of Friction
Friction causes wear and tear, produces heat, and reduces efficiency of machines.
Understanding Work in Physics
Work is done when a force causes displacement. It connects force and motion in a meaningful way.
Concept of Energy
Energy is the ability to do work. It exists in different forms and can change from one form to another.
Energy Conservation
Energy can neither be created nor destroyed, only transformed. This principle applies throughout nature.
Meaning of Power
Power tells how quickly work is done. It helps compare the efficiency of machines and processes.
Applications of Power Concept
Power is used to rate machines, engines, and electrical appliances.
Understanding Momentum
Momentum relates mass and motion. It helps describe how difficult it is to stop a moving object.
Conservation of Momentum
In isolated systems, total momentum remains unchanged. This concept explains collisions and explosions.
What Is Rotational Motion
Rotational motion occurs when an object rotates around a fixed axis. Many machines operate on this principle.
Importance of Axis of Rotation
The axis determines how an object rotates and affects its motion behavior.
Gravitational Interaction
Gravitation is the force of attraction between masses. It governs motion of celestial bodies and falling objects.
Effect of Gravity on Earth
Gravity keeps objects bound to Earth and influences motion near the surface.
Nature of Oscillatory Motion
Oscillatory motion repeats itself after fixed intervals of time.
Importance in Daily Life
Oscillations are used in clocks, sensors, musical instruments, and communication systems.
Student-Focused Content
Notes are written in simple language suitable for CBSE students.
Syllabus Aligned
Content strictly follows the CBSE 2025-26 syllabus.
Concept Clarity First
Ideal for students who want theory understanding before solving numericals.
Concept-First Approach
Understand physical meaning before memorizing anything.
Use Real-Life Examples
Relating physics to daily life improves retention.
Regular Revision
Revisiting concepts frequently strengthens understanding.
The CBSE Physics Dynamics & Mechanics Notes 2025-26 from StudentBro.in focus on conceptual clarity, logical understanding, and strong fundamentals. Without formulas or numericals, these notes help students master the theory portion of mechanics and prepare confidently for CBSE board exams.
