Laws of Motion: Class 11 Physics (Khan Academy)

About this course

Work through the Laws of Motion chapter of Class 11 Physics with Khan Academy: forces, free body diagrams, friction, tension, circular motion and momentum, taught through clear explanations and many worked examples. Who it's for: Class 11 students (CBSE and state boards) and anyone building a strong base in mechanics for JEE or NEET. These are the free, official videos of the "Laws of motion | Class 11 Physics" playlist from the Khan Academy India - English YouTube channel (youtube.com/@KhanAcademyIndiaEnglish). All videos belong to Khan Academy; Sikhami is not affiliated with Khan Academy and simply arranges the public playlist into a course, so you can learn one lesson at a time and keep track of your progress.

What you will learn

• Types of forces and how to draw free body diagrams • Newton's laws in action: balanced and unbalanced forces, and Newton's third law • Normal force, tension and inclined planes • Static and kinetic friction • Connected bodies, pulleys and multi-box systems • Centripetal force and motion in a circle • Impulse, momentum and collisions, and pseudo forces in non-inertial frames

Course content

1 section · 41 lectures · 6h 6m

1. 1. Laws of motion | Class 11 Physics | Khan Academy

   • Types of forces and free body diagrams | Physics | Khan Academy8m
   • More on Newton's third law | Forces and Newton's laws of motion | Physics | Khan Academy13m
   • Normal force in an elevator | Forces and Newton's laws of motion | Physics | Khan Academy11m
   • Breaking down forces for free body diagrams | Physics | Khan Academy9m
   • Free body diagram with angled forces: worked example | AP Physics 1 | Khan Academy5m
   • More on Normal force (shoe on floor) | Physics | Khan Academy10m
   • More on Normal force (shoe on wall) | Physics | Khan Academy6m
   • Balanced and unbalanced forces | Forces and Newton's laws of motion | Physics | Khan Academy8m
   • Slow sock on Lubricon VI | Forces and Newton's laws of motion | Physics | Khan Academy4m
   • Inclined plane force components | Forces and Newton's laws of motion | Physics | Khan Academy12m
   • Ice accelerating down an incline | Forces and Newton's laws of motion | Physics | Khan Academy10m
   • Force of friction keeping the block stationary | Physics | Khan Academy8m
   • Correction to force of friction keeping the block stationary | Physics | Khan Academy0m
   • Force of friction keeping velocity constant | Physics | Khan Academy9m
   • Intuition on static and kinetic friction comparisons | Physics | Khan Academy7m
   • Static and kinetic friction example | Forces and Newton's laws of motion | Physics | Khan Academy9m
   • The force of tension | Forces and Newton's laws of motion | Physics | Khan Academy14m
   • Super hot tension | Forces and Newton's laws of motion | Physics | Khan Academy16m
   • Treating systems (the hard way) | Forces and Newton's laws of motion | Physics | Khan Academy15m
   • Treating systems (the easy way) | Forces and Newton's laws of motion | Physics | Khan Academy10m
   • Two masses hanging from a pulley | Forces and Newton's laws of motion | Physics | Khan Academy8m
   • Three box system problem | Forces and Newton's laws of motion | Physics | Khan Academy6m
   • Masses on incline system problem | Forces and Newton's laws of motion | Physics | Khan Academy9m
   • Introduction to centripetal force | Physics | Khan Academy6m
   • Identifying centripetal force for ball on string | Physics | Khan Academy5m
   • Identifying centripetal force for cars and satellites | AP Physics 1 | Khan Academy9m
   • Identifying force vectors for pendulum: Worked example | AP Physics 1 | Khan Academy2m
   • Centripetal force problem solving | Centripetal force and gravitation | Physics | Khan Academy15m
   • Yo-yo in vertical circle example | Centripetal force and gravitation | Physics | Khan Academy10m
   • Bowling ball in vertical loop | Centripetal force and gravitation | Physics | Khan Academy8m
   • Mass swinging in a horizontal circle | Centripetal force and gravitation | Physics | Khan Academy12m
   • Impulse and momentum dodgeball example | Physics | Khan Academy10m
   • Bouncing fruit collision example | Impacts and linear momentum | Physics | Khan Academy9m
   • Centrifugal force | Pseudo force and Non-inertial frames of reference | Khan Academy17m
   • Could a coin dropped from a tall building kill you? | Laws of motion | Physics | Khan Academy3m
   • Worked example: Tension in a rope | Laws of Motion | Physics | Khan Academy3m
   • Change in momentum from force-time graphs | Laws of Motion | Physics | Khan Academy6m
   • Measuring the speed of a bullet using a block and a string | Laws of motion | Physics | Khan Academy6m
   • Worked example: Forces and Motion | Laws of motion | Physics | Khan Academy6m
   • Example: Analysing motion using Newton's laws | Physics| Khan Academy7m
   • Is centripetal force a new type of force? | Laws of motion | Physics | Khan Academy3m