Q1 of 13 Page 128

The correct sequence of energy changes in hydroelectric power station is,

When water is stored in the tank, it possesses potential energy. Then the water is released and it possesses kinetic energy due to the motion. As the water is in motion it possesses kinetic energy as well as possesses potential energy due to height. so, kinetic energy changes into mechanical energy. This mechanical energy is then stored in a generator using a turbine in the form of electrical energy.

More from this chapter

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1

Kinetic energy is present in the following.

 1

The correct formula to find the velocity v of a body with kinetic energy ‘k’ is

 1

Which object with the mass indicated has a higher potential energy?

 2

Fill in the blanks with suitable words

1. Unit of power is _________ .


2. Unit of energy is _________ .


3. If a candle is burnt, the chemical energy is transformed into __________ .


4. The water stored in an overhead tank possesses _________ energy.


5. In a cinema theatre electrical energy is transformed into ________and__________ energy.