INTRODUCTION - Chapter 14 Sources & Energy class 10 ncert solutions Science - SaraNextGen [2024-2025]

Updated By SaraNextGen

On April 24, 2024, 11:35 AM

Question 1:

What is a good source of energy?

Answer:

A good source of energy fulfils the following criteria:

(I)It produces a lot of heat per unit mass.

(II) It does a huge amount of work per unit mass.

(III) It is easily accessible.

(IV) It is easy to store and transport.

(V)It is economical.

(VI)It produces less amount of smoke.

Question 2:

What is a good fuel?

Answer:

A good fuel produces a huge amount of heat on burning, does not produce a lot of smoke, and is easily available.

Question 3:

If you could use any source of energy for heating your food, which one would you use and why?

Answer:

Natural gas can be used for heating and cooking food because it is a clean source of energy. It does not produce huge amount of smoke on burning. Although it is highly inflammable, it is easy to use, transport, and it produces a huge amount of heat on burning.