#11 Q8 Does the transfer of energy take place when you push a huge rock but it doesn't move5 years ago

01:26

#12 Q9 How much energy is 250 units in joules5 years ago

01:27

#13 Q10 An object of mass 40 kg is raised to a height of 5 m. What is its potential energy?5 years ago

02:51

#14 Q11 What is the work done by force of gravity on a satellite moving around the earth5 years ago

02:02

#15 Q12 Can there be displacement of an object in the absence of any force acting on it5 years ago

01:44

#16 Q13 A person holding hay on his head for 30 mins gets tired. Is work done in this case or not5 years ago

01:24

#17 Q14 How much energy does an electric heater rated at 1500 W use in 10 hours5 years ago

01:45

#18 Q15 Illustrate the law of conservation of energy5 years ago

04:48