Lightning and thunder are caused by the rapid movement of electrical charges within the atmosphere, leading to a discharge that we see as lightning and hear as thunder.

MCQs

1. What is the primary visible manifestation of the electrical discharge in the atmosphere?

A) Rain
B) Lightning
C) Clouds
D) Snow

Answer: B) Lightning

Explanation: Lightning is the primary visible manifestation of the electrical discharge in the atmosphere, appearing as a bright flash of light.

 

2. What do we hear as a result of the lightning discharge?

A) Birds chirping
B) Thunder
C) Wind howling
D) Leaves rustling

Answer: B) Thunder

Explanation: Thunder is the sound produced by the rapid expansion of air heated by a lightning bolt, which we hear shortly after seeing lightning.

 

3. Which of the following is not directly involved in the formation of lightning and thunder?

A) Electrical charges
B) Air temperature
C) Water droplets
D) Wind speed

Answer: D) Wind speed

Explanation: While wind can influence weather patterns, the direct formation of lightning and thunder is primarily due to electrical charges, air temperature, and water droplets in the atmosphere.

4. What is the role of air temperature in the formation of thunder?

A) It has no role
B) It determines the color of lightning
C) It influences the speed of sound
D) It contributes to the rapid expansion of air

Answer: D) It contributes to the rapid expansion of air

Explanation: Air temperature contributes to thunder formation by affecting how quickly the air expands when heated by lightning, which in turn affects the sound of thunder.

5. How do electrical charges build up in the atmosphere to create lightning?

A) Through the movement of ocean currents
B) By the Earth rotating on its axis
C) By the interaction of water droplets and ice particles in clouds
D) Through the gravitational pull of the moon

Answer: C) By the interaction of water droplets and ice particles in clouds

Explanation: Electrical charges build up in the atmosphere primarily through the interaction of water droplets and ice particles in clouds, leading to the development of lightning.

 

Fill In The Blanks

Choose from these words: air, electrostatic, indoors

1. Lightning is a sudden __________ discharge that occurs during a thunderstorm.

Answer: electrostatic

 

2. Thunder is the sound created by the rapid expansion and contraction of ________ surrounding the lightning bolt.

Answer: air

 

3. It is important to stay ________ and away from windows during a thunderstorm to stay safe.

Answer: indoors

 

True/False Questions:

1. Lightning is hotter than the surface of the sun. (True/False)

Answer: True. Lightning can reach temperatures of about 30,000 degrees Celsius, which is hotter than the surface of the sun.

2. Thunder is the sound made by clouds crashing together. (True/False)

Answer: False. Thunder is the sound caused by the rapid expansion and contraction of air around a lightning bolt.

3. It is safe to be outside during a thunderstorm. (True/False)

Answer: False. It is not safe to be outside during a thunderstorm, as lightning can strike at any time and pose a serious risk of injury.

4. Thunder always comes before lightning. (True/False)

Answer: False. Lightning comes before thunder because light travels faster than sound. So you will see the lightning before you hear the thunder.

5. Lightning never strikes the same place twice. (True/False)

Answer: False. Lightning can strike the same place multiple times, especially tall objects like trees, buildings, or even people.

 

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