HARD
10th ICSE
IMPORTANT
Earn 100

An overhead water tank of capacity 1000 litres in 30 m above the ground. Calculate total work done in filling this tank. Calculate total time taken by a lift pump of power 5kW to fill the tank.

Important Questions on Work, Energy and Power

HARD
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 3 - Work, Energy and Power>QUESTIONS>Q 29
A steamer boat of 100 HP can move in sea with maximum velocity of 3.43 m/s. Calculate frictional force applied by water on boat.
HARD
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 3 - Work, Energy and Power>QUESTIONS>Q 30
A power lifter lifts a load of 180 kgf up to height of 2.2 m for 5s. Calculate (i) the work done (ii) power developed by him.
EASY
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 3 - Work, Energy and Power>QUESTIONS>Q 4
Define mechanical energy. What are the two types of this energy?
MEDIUM
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 3 - Work, Energy and Power>QUESTIONS>Q 5
Define Kinetic energy of a moving body. If the speed of the body is doubled, how many times its kinetic energy would increase or decrease? 
HARD
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 3 - Work, Energy and Power>QUESTIONS>Q 6
A ball of mass 200g is moving with speed of 12ms-1. What is the kinetic energy of the ball?
HARD
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 3 - Work, Energy and Power>QUESTIONS>Q 7
Kinetic energy of a body of mass 2kg is 100J. What is the speed of particle?
MEDIUM
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 3 - Work, Energy and Power>QUESTIONS>Q 8
Define potential energy of a body. Name any two types of potential energy.
MEDIUM
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 3 - Work, Energy and Power>QUESTIONS>Q 15
What are the conventional and non-conventional sources of energy? Give examples of each type.