Q8 of 15 Page 14

How has the traditional use of energy of flowing water been modified for our convenience? ( CBSE 2010)

Traditionally, waterfalls were used as a source of potential energy in which water is allowed to fall on the blades of the turbine where the rotatory motion of the blades of the turbine is converted into electrical energy. But waterfalls are few in number therefore water dams have been constructed. Nowadays, hydro-electric power stations are used in order to harness potential energy of stored water.

More from this chapter

All 15 →
6

What kind of mirror, concave, convex or plane, would be best suitable for use in a solar cooker? why? ( CBSE 2011)

 7

What are the advantages and disadvantage of using a solar cooker? ( CBSE 2011)

 9

(a) How does construction of dams across the river get linked with production of greenhouse gases?

(b) How do technological inputs improve the efficiency of bio-mass fuels? ( CBSE 2012)

 10

What is a good source of energy? ( CBSE 2013)