EASY
10th ICSE
IMPORTANT
Earn 100

How much energy is gained by a box of mass 20 kg when a man runs carrying the box with a speed of 3 m s-1 to catch the bus ?

Important Questions on Work, Energy and Power

EASY
10th ICSE
IMPORTANT
Selina Icse Concise Physics For Class 10>Chapter 2 - Work, Energy and Power>EXERCISE-2(B)>Q 22
How much energy is gained by a box of mass 20 kg when a man raises the box by 0·5 m in order to place it inside the bus ? (g=10 m s-2)
EASY
10th ICSE
IMPORTANT
Selina Icse Concise Physics For Class 10>Chapter 2 - Work, Energy and Power>EXERCISE-2(B)>Q 23
A spring is kept compressed by a small trolley of mass 0.5 kg lying on a smooth horizontal surface as shown in the figure. When the trolley is released, it is found to move at a speed v = 2 m s-1. What potential energy did the spring possess when compressed?
Question Image
EASY
10th ICSE
IMPORTANT
Selina Icse Concise Physics For Class 10>Chapter 2 - Work, Energy and Power>EXERCISE-2(C)>Q 1
Mention two characteristics which a source of energy must have.
EASY
10th ICSE
IMPORTANT
Selina Icse Concise Physics For Class 10>Chapter 2 - Work, Energy and Power>EXERCISE-2(C)>Q 2
List the name of the two groups in which various sources of energy are classified. State the basis on which they are classified.
EASY
10th ICSE
IMPORTANT
Selina Icse Concise Physics For Class 10>Chapter 2 - Work, Energy and Power>EXERCISE-2(C)>Q 3
What do you mean by the terms renewable and non-renewable sources of energy? Distinguish between them and give at least two examples. 
EASY
10th ICSE
IMPORTANT
Selina Icse Concise Physics For Class 10>Chapter 2 - Work, Energy and Power>EXERCISE-2(C)>Q 4

Select the renewable and non-renewable sources of energy from the following:

(a) Coal

(b) Wood

(c) Water

(d) Diesel

(e) Wind

(f) Oil

EASY
10th ICSE
IMPORTANT
Selina Icse Concise Physics For Class 10>Chapter 2 - Work, Energy and Power>EXERCISE-2(C)>Q 5
Why is the use of wood as a fuel is not advisable however wood is a renewable source of energy?
EASY
10th ICSE
IMPORTANT
Selina Icse Concise Physics For Class 10>Chapter 2 - Work, Energy and Power>EXERCISE-2(C)>Q 6
List any five renewable and three non-renewable sources of energy.