Tidal Energy

Q. State true or false:

A tidal energy dam can harvest more energy on a larger scale than a hydropower plant.

1. True
2. False

Q.

Universal law of gravitation does not explain

1. the tides on earth due to the moon

2. the motion of the moon around the earth

3. the motion of electrons in an atom

4. the motion of planets around the Sun

Q. Which of the following convert the tidal energy of the ocean into electrical energy?

1. Rotating turbines
2. Windmills
3. Floating solar cells
4. Hydro power plants

Q. Floatingin the ocean are used to convert tidal energy into electrical energy.

1. turbines
2. reservoir
3. mills

Q. Renewable source of energy is

1. Natural gas
2. Coal
3. Petrolium
4. Energy of flowing water

Q. Which of the following energy sources is exhaustible?

1. Coal
2. Sun
3. Water
4. Wind

Q. Which of the following is the potential site for the harnessing of tidal energy in India?

1. Northern areas
2. Gulf of Kutch in Gujarat
3. Malabar Coast
4. Kalpakkam in Tamil Nadu

Q.

How is tidal energy harnessed?

1. Dam is constructed at certain height above sea that converts tidal energy to electrical energy.

2. Dam is constructed across a narrow opening of sea which converts tidal energy to electrical energy.

3. Kinetic energy of the waves of water is converted to electrical energy.

4. None of these.

Q.

What forms tides in sea?

1. Gravitational pull of moon

2. Flow of wind over sea

3. Uneven heating of sea

4. None of the above

Q.

Why is turbine used in harnessing tidal energy?

1. To convert electrical energy to mechanical energy
2. To convert tidal energy to electrical energy
3. To convert wave energy to tidal energy
4. None of the above

Q.

What is tidal energy?

1. kinetic energy of water is converted into potential energy

2. is the Due to temperature difference between the water surface and deep water.

3. difference in sea levels during high tide and low tide

4. all of these