The Power and Phenomenon of Lightning

The video explains lightning as an electrostatic discharge occurring when charged regions in the atmosphere and ground equalize. It details the formation process, the energy involved, and the conditions required. The video also covers the types of lightning, its effects on nature and structures, and its role in the nitrogen cycle. Thunder, the sound accompanying lightning, is explained as a result of rapid air expansion due to intense heat. Safety measures like lightning rods are discussed, along with the survival rate of lightning strikes.

What is the primary cause of the electrostatic discharge known as lightning?

• The movement of tectonic plates

• The gravitational pull of the moon

• The collision of air molecules with cosmic rays

• The rotation of the Earth

How does thunder occur in relation to lightning?

• It is the sound of rain hitting the ground

• It is caused by the rapid expansion of heated air

• It is the sound of clouds colliding

• It is the echo of lightning striking

Which type of lightning occurs between a cloud and the ground?

• Intra-cloud lightning

• Cloud-to-cloud lightning

• Cloud-to-ground lightning

• Ground-to-cloud lightning

What is a common safety measure used to protect structures from lightning strikes?

• Building underground shelters

• Painting the building with reflective paint

• Insulating the building with rubber

• Installing lightning rods

How does lightning contribute to the nitrogen cycle?

• By oxidizing nitrogen and releasing nitrates into the air

• By releasing nitrogen gas into the soil

• By converting nitrogen into ammonia

• By absorbing nitrogen from the atmosphere