Tag: some natural phenomena

Questions Related to some natural phenomena

All living things depend on which chemical element?

physics some natural phenomena introduction to lightning lightning analysis of natural phenomena

  1. Oxygen

  2. Nitrogen

  3. Hydrogen

  4. Phosphorous

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Correct Option: B
Explanation:

Proteins are the building blocks of life. Major components of protein are nitrogen, oxygen and carbon. Hence, liiving things are depended on these three elements for survival.

Which nutrient is produced when large amount of energy breaks the atom bonds of nitrogen?

physics some natural phenomena introduction to lightning lightning analysis of natural phenomena

  1. Protein

  2. Mineral

  3. Iron

  4. Calcium

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Correct Option: A
Explanation:

Energy in the lightning can break the strong bond between the nitrogen molecules. Atoms separated are than free to combine with other elements. Proteins forms the building block of life is composed of nitrogen, carbon and oxygen.

State whether the given statement is True or False :

Forest fires were beneficial for the plantations which grew after these fires which were caused due to lightning. 

physics some natural phenomena introduction to lightning lightning analysis of natural phenomena

  1. True

  2. False

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Correct Option: A

How much percentage of atmosphere is made of nitrogen?

physics some natural phenomena introduction to lightning lightning analysis of natural phenomena

  1. $78$percent

  2. $90 $percent

  3. $88 $percent

  4. $82 $percent

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Correct Option: A
Explanation:

Air consist of $78$% nitrogen. 

How does lightning help the atmosphere?

physics some natural phenomena introduction to lightning lightning analysis of natural phenomena

  1. Increases the temperature

  2. Brings rain

  3. Increases the ozone layer

  4. Unsure

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Correct Option: C
Explanation:

Explanation: Lightning causes large electric discharge in the atmosphere resulting in the formation on $\displaystyle { O } _{ 3 }$, i.e., Ozone from $\displaystyle { O } _{ 2 }$. Ozone layer is very helpful for protecting the atmosphere.

The spark seen inside a switch is:

physics some natural phenomena introduction to lightning lightning analysis of natural phenomena

  1. electrical discharge

  2. due to heating effect of current

  3. an indicator glowing

  4. a sudden fire

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Correct Option: A
Explanation:

When a switch is put off, between two conducting plates inside, an electrical discharge occurs. This phenomenon is similar to lightning between the clouds.

In one year lightning produces how much amount of usable nitrogen fertilizer?

physics some natural phenomena introduction to lightning lightning analysis of natural phenomena

  1. $250000 tons$

  2. $25000 tons$

  3. $250 tons$

  4. $25 tons$

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Correct Option: A
Explanation:

$Answer:-$ A

The processes of the nitrogen cycle transform nitrogen from one form to another. Atmospheric nitrogen must be processed, or fixed, in a usable form to be taken up by plants. Between $5\times 10^{12}$ and $10\times 10^{12}$ g per year are fixed by lightning strikes.

Which of the following cannot be charged easily by friction?

physics some natural phenomena types of charges and their interaction transfer of charges charging and discharging transfer of charge

  1. A plastic scale

  2. A copper rod

  3. An inflated balloon

  4. A woollen cloth

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Correct Option: B
Explanation:

Copper rod cannot be charged easily by friction because it is a conductor. Only non-conducting materials can be charged easily by friction.

When a glass rod is rubbed with a piece of silk cloth the rod:

physics some natural phenomena types of charges and their interaction transfer of charges charging and discharging transfer of charge

  1. and the cloth both acquire positive charge.

  2. becomes positively charged while the cloth has a negative charge.

  3. and the cloth both acquire negative charge.

  4. becomes negatively charged while the cloth has a positive charge.

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Correct Option: B
Explanation:
The two objects charged by friction gets oppositely charged. 
Charge acquired by the glass rod is positive and charge acquired by the cloth is negative. 

When body losses electrons it acquires:

physics some natural phenomena types of charges and their interaction transfer of charges charging and discharging

  1. positive charge

  2. negative charge

  3. partially positive charge

  4. partially negative charge

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Correct Option: A
Explanation:

When body losses electrons, it becomes electron deficient and acquires positive charge.