Physics · Class 11 · Chapter 2
Motion in a Straight Line
9 lessons 78 min 4 simulations 9 practice questions
This chapter describes motion along a single line without asking what causes it: how position, velocity and acceleration are defined, how they are read from graphs, and how the three kinematic equations follow when acceleration is constant. It is the language every later mechanics chapter is written in, from projectiles to rotation.
What the exam asks
NEET asks short numericals on the kinematic equations, free fall and vertical throws, questions that turn on reading x-t and v-t graphs, and conceptual checks on the difference between distance and displacement or speed and velocity. Marks slip away through sign mistakes when a body moves up and then down, forgotten km/h to m/s conversions, and using the constant-acceleration equations when acceleration actually varies with time.
Lessons
9 lessons · 78 min
1Background: position, displacement and distance (prerequisite recap)NCERT § "Introduction"6 min2Instantaneous velocity and speedNCERT § "Instantaneous Velocity and Speed"6 min3AccelerationNCERT § "Acceleration"10 min 1 sim4Reading motion graphsNCERT § "Acceleration"10 min 1 sim5Kinematic equations for uniformly accelerated motionNCERT § "Kinematic Equations for Uniformly Accelerated Motion"6 min6Free fall and vertical motion under gravityNCERT § "Kinematic Equations for Uniformly Accelerated Motion"10 min 1 sim7Stopping distance and reaction timeNCERT § "Kinematic Equations for Uniformly Accelerated Motion"9 min 1 sim8Using calculus in kinematicsNCERT § "Kinematic Equations for Uniformly Accelerated Motion"6 min9Chapter reviewMust-know facts, traps and formulas15 min