Tag: save energy

Quizzes (2) Questions (48)

Questions Related to save energy

Multiple choice physics save energy types of sources of energy renewable and non-renewable resources renewable and non-renewable sources of energy

Which of the following is a characteristic of wind energy?

  1. Renewable source.

  2. Non renewable source.

  3. Not echo friendly.

  4. Costly.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Advantages of the wind energy are as follows:

1. Clean source of energy.
2. It is renewable source of energy.
3.Echo-friendly as creates no pollution.
4.Cost efficient as naturally available and easy to harness.

Multiple choice physics save energy types of sources of energy renewable and non-renewable resources renewable and non-renewable sources of energy

State whether the given statement is True or False :

Non conventional sources of energy are cheaper than conventional sources of energy in most of the cases. 

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Cheaper and Renewable: Most of the Non-conventional Power resources are cheaper and renewable as compared to conventional source.Solar energy,wind energy are much cheaper than fuel,coal etc.


 Scarcity of Fossil Fuels: The overall limitation and scarcity of fossil fuels has given rise to the urgent need for exploiting alternative energy source.

Multiple choice physics save energy types of sources of energy renewable and non-renewable resources renewable and non-renewable sources of energy

What term is known as when the solar energy fall on the Earth's atmosphere exposed perpendicularly to the rays of the Sun at the average distance between the Sun and Earth?

  1. Solar panel

  2. Solar Constant

  3. Solar Time

  4. Solar Energy
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Solar constant is defined as the rate at which per unit area of the Earth's atmosphere receives the Sun's energy, when the Sun is at the mean distance from the Earth. Value is about 1388 watts per square metre.

Multiple choice physics save energy types of sources of energy renewable and non-renewable resources renewable and non-renewable sources of energy

What are hot spots?

  1. Molten rock in the earths crust is pushed upward and trapped in certain regions

  2. Solid rock in the earths crust is pushed upward and trapped in certain regions

  3. Molten rock in the earths crust is pushed downward and trapped in certain regions

  4. Solid rock in the earths crust is trapped in certain regions
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Geothermal energy is the energy stored in the earth as heat. It can be harnessed only from a few places on earth called as geothermal hotspots. In these hotspots, molten rock in the earths crust is pushed upward and trapped in certain regions.
Multiple choice physics save energy types of sources of energy renewable and non-renewable resources renewable and non-renewable sources of energy

Out of the following which one is not a unconventional source of energy ?

  1. Tidal power

  2. Geothermal energy

  3. Nuclear energy

  4. Wind power
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Nuclear energy is generally considered a conventional source of energy in many contexts, whereas tidal, geothermal, and wind are unconventional (renewable/alternative).