Define electron volt ($\mathrm{eV}$).

Important Questions on Sources of Energy

MEDIUM

10th CBSE

IMPORTANT

Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 3 - Sources of Energy>IMPORTANT QUESTIONS>Q 30

How is the increase in demand for energy affecting our environment adversely?

EASY

10th CBSE

IMPORTANT

Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 3 - Sources of Energy>IMPORTANT QUESTIONS>Q 1

List out the properties of a good source of energy.

EASY

10th CBSE

IMPORTANT

Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 3 - Sources of Energy>IMPORTANT QUESTIONS>Q 2

What is solar cell? Name two materials mostly used for making solar cells.

EASY

10th CBSE

IMPORTANT

Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 3 - Sources of Energy>IMPORTANT QUESTIONS>Q 3

The use of dry wood as domestic fuel is not considered as good. State two reasons for it.

EASY

10th CBSE

IMPORTANT

Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 3 - Sources of Energy>IMPORTANT QUESTIONS>Q 4

How is charcoal obtained from wood? Why is charcoal considered better fuel than wood?

EASY

10th CBSE

IMPORTANT

Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 3 - Sources of Energy>IMPORTANT QUESTIONS>Q 5

Define the term 'fuel'. What are the primary and secondary fuels? To which class of fuel do the following belong: Coke, Wood, Petroleum, LPG. 

EASY

10th CBSE

IMPORTANT

Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 3 - Sources of Energy>IMPORTANT QUESTIONS>Q 6

How were fossil fuels formed? How these fossil fuels were made?

EASY

10th CBSE

IMPORTANT

Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 3 - Sources of Energy>IMPORTANT QUESTIONS>Q 7

For producing electricity, the energy from flowing water is preferred to energy obtained by burning coke. State two reasons for it.