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Conservation of Energy
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This lesson deals with the concept of conservation of energy.

Adarsh Raj
Teaching Physics for IIT JEE /NEET. 20 MCQ for NEET daily In my feed. Question Series On Each chapter. HC VERMA EXERCISE solving .

U
Unacademy user
sir pen hi kyu liye as a base??
Ap
Anku poonia
10 months ago
kyunki pen base lene se easily solve hota h
No, centifugal force do not any work when a partical move in a circular motion =0 becouse centifugal forces moving at a fixed distance from the center of rotation. is it right sir
Adarsh Raj
a year ago
actually....the angle become 90 degree make cos theta zero...
sir "power" ka theory kha hai
Adarsh Raj
a year ago
kya hua ???
Study Only
a year ago
Is work ,power & energy chapter but" power" topic is missing here
Adarsh Raj
a year ago
ohkk
more problems for practice
Adarsh Raj
a year ago
sure
  1. Adarsh Raj E.C.E Educator at Unacademy Loves teaching and debating https://unacademy.com/user/AdarshRajSrivastav.


  2. ENERGY IS CONSERVE The law of conservation of mechanical energy states: Energy cannot be created or destroyed, only transformed! Energy Before Energy After PE Am I moving? If yes, Ko Am I moving? If yes, KE Am I above the ground? If yes, U Am I above the ground? If yes, U


  3. Conservation of energy and conservation of mechanical energy Conservation of energy means conservation of all forms of energy together. Accounting all forms of energy within an isolated system the total energy remains constant. While mechanical energy accounts only two forms of energy namely kinetic energy K and potential energy U. If only conservative forces act on a system then total mechanical energy of the system remains constant l.e. K+U= cons tant Therefore, K + U = 0


  4. Suppose you throw a ball upward What does work while it is flying through the air? Is the CHANGE in kinetic energy POSITIVE or NEGATIVE? Is the CHANGE in potential energy POSITIVE or NEGATIVE?


  5. What does work while it is flying through the air? AKE GRAVITY (KE-KE .) = PE-PE Is the CHANGE in kinetic energy POSITIVE or NEGATIVE? NEGATIVE Is the CHANGE in potential energy POSITIVE or NEGATIVE? VEory Energy Beloe- Energy Energy Before Energy After POSITIVE


  6. Conservation of Energy potential energy potential energy kinetic energy potential energy + kinetic


  7. Energy consistently changes PE = KE- ME =- 3 PE = KE = PE = 1 m ME =-


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