Multiple choice question XXI — task. Science CBSE, Class 10.

PDF chapter test TRY NOW

1. Which is the ultimate source of energy?

Water
Sun
Uranium
Fossil fuels

2. In an hydroelectric power plant more electrical power can be generated if water falls from a greater height because

its temperature increases
larger amount of potential energy is converted into kinetic energy
the electricity content of water increases with height
more water molecules dissociate into ions

Login or Fast registration

Previous exercise

Exit to the topic

Did you find an error?

Register for free to see more content

Register for free to see more content