Ask a Doubt
Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 9 Answered

plzzzzzzz
Asked by hemant2020 | 28 Dec, 2009, 05:28: PM
answered-by-expert Expert Answer

Energy is capacity to do work and since work is scalar product of force and displacement, it's scalar, so energy is scalar, potential or kinetic or electric or any other form for that matter.

Regards,

Team,

TopperLearning.

Answered by | 28 Dec, 2009, 11:15: PM

Application Videos

Concept Videos

Multiple Choice Questions Practice Test
Answered Unanswered My Questions My Answers
CBSE 9 - Physics
An object of mass 1kg is falling from the height h=10m.calculate a) the total energy of an object at h=10m b) potential energy of the object when it is at h=4m c) kinetic energy of the object when it is at h=4m d) what will be the speed of the object when it hits the ground
Asked by mailtoparvathyprajith | 08 Feb, 2024, 06:45: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Physics
1)state energy conversion takes place in hydroelectric power plants? 2)an object of mass 1kg is falling from a height of 10 m. Calculate i) the total energy of object at h=10m ii) Potential energy of an object when h=4m   3)Name energy transfers which occurs when a)an electri bell rings b)someone speake into a microphone c)there is a picture on television screen d)A torch is on  
Asked by mailtoparvathyprajith | 08 Feb, 2024, 12:32: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Physics
3)A body does 20 joules of work in 5 seconds what is power
Asked by mailtoparvathyprajith | 06 Feb, 2024, 09:00: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Physics
when an arrow is shot from its bow it has kinetic Energy. From where does it get the kinetic Energy
Asked by mailtoparvathyprajith | 06 Feb, 2024, 08:44: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Physics
If person A reaches the 2nd floor Of a shopping mall by lift and Person B reaches the same floor by stairs and both their masses are same. Is work done by person B is greater than Person A  against gravitational force.Justify your answer
Asked by mailtoparvathyprajith | 06 Feb, 2024, 08:24: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Physics
calculate the amount of work required to stop a car of 1000kg moving with speed of 72km/h
Asked by sadhanaasadhanaa67 | 04 Feb, 2024, 12:27: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Physics
Calculate the work required to be done to stop a car of 1500 kg moving at a velocity of 60 km hour
Asked by vkjainj56 | 30 Nov, 2023, 12:00: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Physics
difference between kinetic energy and potential energy
Asked by mattooamit4u | 28 Nov, 2023, 12:36: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Physics
Chapter 10 work and energy
Asked by deadloxyt15 | 10 Oct, 2023, 01:04: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Physics
kinematics
question image
Asked by palagarapapamma1982 | 26 Sep, 2023, 08:50: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt
Get Latest Study Material for Academic year 24-25 Click here
×