Schooling Courses
Laws of Motion: Class 11 Physics (Khan Academy)
Sikhami InstituteEnglish
Free
Join for free- 41 video lectures (6h 6m)
- Certificate of completion
- Ask the teacher your doubts
- Watch on the web and in the Android app
- Learn more
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
This course at a glance
- Lectures
- 41 video lectures
- Video
- 6h 6m in all
- Level
- Class 11
- Language
- English
- Access
- Lifetime access
- Certificate
- On completion
Lectures last updated September 2026
Course content
1 section · 41 lectures · 6h 6m
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
Show all 41 lectures
- 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
How long it takes
6h 6m of video in 41 lectures. Pick a pace that suits you:
Steady
13 days
at 30 minutes a day
Regular
7 days
at 1 hour a day
Fast track
4 days
at 2 hours a day
Video time only: practice takes a little longer. Your place in every lecture is saved, so you can stop any time.
Earn a certificateLearn more
Watch every lecture, then claim a certificate of completion with your name on it.
- Its own web page and code, so a school or an employer can check it is real
- Save it as a PDF or print it
- Included with the course, at no extra cost
Who teaches it
Sikhami InstituteNew Delhi · 297 courses · 753 learners · 530 followersSikhami Institute is Sikhami's own institute for free learning. We pick some of the best free courses on YouTube, from Harvard's CS50, MIT, NPTEL, Khan Academy, Google, Microsoft, the BBC, Crash Course, PW, Magnet Brains, CodeWithHarry and many more, and turn them into proper courses on Sikhami that you can follow lesson by lesson while your progress is saved.
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All videos belong to their creators and play from their official YouTube channels, and each course credits its creator. Questions or suggestions? Write to help@sikhami.com.Questions people ask
Is this course free?
Yes. Joining is free, and the lectures unlock as soon as you join. Once you join, it is yours for life.
How long is the course?
41 video lectures, 6h 6m of video in all. At an hour a day, the videos take 7 days. You learn at your own pace; there are no fixed class times.
Do I get a certificate?
Yes. When you have watched every lecture, you can claim a certificate of completion. It has its own page and code, so anyone can check that it is real. About certificates
What language is it taught in?
English.
Can I learn on my phone?
Yes. Watch on the website or in the Sikhami app for Android with the same account. Your place in every lecture is saved, so you can switch between them.
Can I ask the teacher a doubt?
Yes. Ask it in the questions on the course page, or from inside any lecture while you watch. You can also keep your own notes on each lecture.
Who made these videos?
The lectures are the free, public videos of the YouTube playlist "Laws of motion | Class 11 Physics | Khan Academy", and they belong to their creator. Sikhami arranges them into a course, so you can learn one lecture at a time and keep track of your progress.
