**NCERT Solutions: Motion**

Motion is the change in position of an object with time. It is one of the fundamental concepts in physics and is studied in Class 9 under the chapter "Motion" in the NCERT textbook. NCERT solutions provide a comprehensive understanding of the concepts and help students in their exam preparation. Here are some important questions related to NCERT solutions for Motion:

**1. What is Motion?**
- Motion is the change in position of an object with respect to its surroundings over time. It can be described in terms of distance, displacement, speed, velocity, and acceleration.

**2. What are the types of Motion?**
- There are three types of motion:
- Translational motion: When an object moves along a straight line or follows a curved path.
- Rotational motion: When an object spins or revolves around a fixed axis.
- Vibratory motion: When an object oscillates or moves back and forth around its mean position.

**3. What is Distance and Displacement?**
- Distance is the total path covered by an object during its motion. It is a scalar quantity and is always positive.
- Displacement is the shortest distance between the initial and final positions of an object. It is a vector quantity and can be positive, negative, or zero.

**4. What is Speed and Velocity?**
- Speed is the rate at which an object covers a certain distance in a given time. It is a scalar quantity and is always positive.
- Velocity is the rate of change of displacement of an object with respect to time. It is a vector quantity and can be positive, negative, or zero.

**5. What is Acceleration?**
- Acceleration is the rate of change of velocity of an object with respect to time. It is a vector quantity and can be positive, negative, or zero. It determines how quickly an object's velocity is changing.

**6. What are the Equations of Motion?**
- The equations of motion are mathematical expressions that relate the displacement, initial velocity, final velocity, acceleration, and time for an object in motion. The three equations are:
- v = u + at
- s = ut + 0.5at²
- v² = u² + 2as
where v is the final velocity, u is the initial velocity, a is the acceleration, t is the time taken, and s is the displacement.

These are some of the important questions related to NCERT solutions for Motion. Understanding these concepts and solving related problems using the NCERT solutions will help students grasp the fundamentals of motion and excel in their examinations. For detailed solutions and further practice, students can refer to the NCERT textbook and EduRev, an educational platform that provides comprehensive study material and solutions for various subjects.