MEDIUM
10th ICSE
IMPORTANT
Earn 100

Define potential energy of a body. Name any two types of potential energy.

Important Questions on Work, Energy and Power

MEDIUM
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 3 - Work, Energy and Power>QUESTIONS>Q 9
What is gravitational potential energy? When is this energy positive, negative ?
HARD
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 3 - Work, Energy and Power>QUESTIONS>Q 10
A boy of mass 40kg climbs the height of 10 m. What is the rise in his potential energy?
HARD
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 3 - Work, Energy and Power>QUESTIONS>Q 11
A stone of mass 150 g falls from the height of 12 m. Whether its potential energy is increased or decreased and how much ?
HARD
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 3 - Work, Energy and Power>QUESTIONS>Q 12
Name three different types of kinetic energy. Give one example of each type.
HARD
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 3 - Work, Energy and Power>QUESTIONS>Q 13
What do you mean by conservation of mechanical energy? Give examples.
EASY
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 3 - Work, Energy and Power>QUESTIONS>Q 14
What do you mean by law of conservation of energy? Give examples when (i) heat energy converts into mechanical energy, (ii) mechanical energy converts into electric energy and (iii) chemical energy converts into electrical 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.
HARD
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 3 - Work, Energy and Power>QUESTIONS>Q 16
A ball of mass 100 g falls freely from the height of 15 m. Calculate (i) initial potential energy of the ball. (ii) sum of potential and kinetic energies of the ball when it has fallen a distance of 8 m and (iii) final kinetic energy of the ball.