Physics Notes on Motion: 

When I first started learning Physics, the chapter on motion always fascinated me. Motion is all around us — from a car moving on the road to the Earth revolving around the Sun. In this article, we will go through the key concepts of motion step by step. I’ll explain in a way that feels like we are learning together, making Physics easier and more fun.

1. What is Motion?

Motion simply means a change in position of an object with respect to time.

• If something stays in the same position, it is at rest.
  
  

• If it changes its position, it is in motion.
  
  

For example: When we walk to school, we are in motion.

2. Types of Motion

We often see different types of motion in daily life. Here are the main ones:

• Rectilinear Motion: Motion in a straight line (a train on a straight track).
  
  

• Circular Motion: Motion along a circular path (the Earth around the Sun).
  
  

• Periodic Motion: Motion that repeats itself at regular intervals (a pendulum).
  
  

• Random Motion: Motion with no fixed path (a fly moving in a room).
  
  

When I revised these with examples from real life, I found them very easy to remember.

3. Speed, Velocity and Acceleration

• Speed: Distance traveled per unit time.
  
  

Speed=DistanceTimeSpeed = \frac{Distance}{Time}

• Velocity: Speed in a given direction. (If I walk north at 5 km/h, that’s velocity.)
  
  

• Acceleration: Rate of change of velocity.
  
  

Acceleration=Change in VelocityTimeAcceleration = \frac{Change\ in\ Velocity}{Time}

When I solved practice questions, I realized these three concepts are the foundation of motion.

4. Equations of Motion

These are the most important formulas every Physics student must know:

1. v=u+atv = u + at
   
   

2. s=ut+12at2s = ut + \frac{1}{2}at^2
   
   

3. v2=u2+2asv^2 = u^2 + 2as
   
   

Where,

• uu = initial velocity
  
  

• vv = final velocity
  
  

• aa = acceleration
  
  

• tt = time
  
  

• ss = displacement
  
  

I always keep these formulas in a small notebook, and it really helps me during exams.

5. Graphical Representation of Motion

Graphs make motion easier to understand:

• Distance-Time Graph → Shows how far an object has traveled.
  
  

• Velocity-Time Graph → Helps us calculate acceleration and distance.
  
  

When I first drew these graphs, I realized they are like pictures of motion.

Final Thoughts

Motion is the heart of Physics. If we understand motion well, other topics like force, work, and energy become much easier. I suggest you come back to these notes whenever you revise, and practice with real-life examples. Trust me, once we see Physics in action around us, it doesn’t feel tough anymore.