Question

Name the transformation of energy involved in the following cases :
(a) When a body is thrown upwards.
(b) When a body falls from the top of a hill.
(c) When coal burns.
(d) When a gas bums.
(e) When water falls from a height.

Answer 1

Answer:

A) Kinetic Energy to Potential energy

B) Potential energy to Kinetic energy

C) Chemical energy to Heat energy

D) Chemical energy to heat energy

E) Potential energy to Kinetic energy

Explanation:

Please mark me as the BRAINIEST!!!...

I have answered all...

Answer 2

The transformation of energy involved in each case is as follows-

• (a) When a body is thrown upwards: Initially the body is in rest and the person throws it upwards using its cellular energy in its muscles. Finally, the body gains potential energy as it goes upwards. Hence, in this case, the cellular energy is transferred into potential energy.
• (b) When a body falls from the top of a hill: Initially the body is at rest and only has the potential energy associated with its height. When it falls, it starts increasing its kinetic energy to reach the ground. Hence, in this case, potential energy is transferred into kinetic energy.
• (c) When coal burns: Initially, chemical energy is stored within the chemical bonds of the unburnt coal. When it burns, it releases heat energy. Hence, in this case, the chemical energy is transferred into heat energy.
• (d) When a gas burns: Initially, the gaseous molecules contain kinetic energy and move randomly within the space. When it burns, it releases heat energy. Hence, in this case, the kinetic energy is transferred into heat energy.
• (e) When water falls from a height: Initially, the water is at rest and only has the potential energy associated with its height. When it falls, it starts increasing its kinetic energy to reach the ground. Hence, in this case, potential energy is transferred into kinetic energy.