Can Hail Destroy Everything? Exploring the Impact of Hailstones

The video explores the formation and behavior of hailstones, focusing on supercooled water and its role in hailstone creation. Through experiments in a wind tunnel and impact tests, the video demonstrates how hailstones form, rise, and fall, and their effects on different materials. The video also highlights the mystery of hailstone suspension in clouds and the conditions required for their formation.

What is the state of water called when it remains liquid below 0°C?

• Frozen water

• Supercooled water

• Condensed water

• Boiling water

What helps hailstones stay suspended in the clouds?

• Temperature inversion

• Ascending winds

• Descending winds

• Cloud density

What is the purpose of the wind tunnel in the hailstone study?

• To test the strength of materials

• To simulate cloud conditions

• To measure the temperature of hailstones

• To create artificial hailstones

What was the result of the umbrella test against hailstones?

• The umbrella absorbed all the energy without damage

• The umbrella resisted well due to its flexibility

• The umbrella was completely destroyed

• The umbrella did not resist at all

What material was found to be ineffective against hailstones in the experiments?

• Wood

• Metal

• Glass

• Slate

What was concluded about the realism of the hailstone impact test?

• The test was highly realistic

• The test was not realistic due to low fall height

• The test showed no damage at all

• The test perfectly simulated natural conditions

What is required to reach the final speed of a natural hailstone in tests?

• A fall from 10 meters

• A fall from 50 meters

• A fall from at least 120 meters

• A fall from a few meters