Why is Ice Slippery? + more videos | #aumsum #kids #science #education #children

TL;DR

Ice is not fully liquid, it's a thin film allowing slippery surfaces.

Transcript

It's AumSum Time. Why is Ice Slippery? No, it is not. I can easily walk. Oh AumSum. To buy AumSum merchandise visit AumSum.com. It was commonly believed that friction generates a film of liquid water on the surface of ice.  In an experiment scientists found out. That surface ice does not completely transform into liquid water. But ends up in a mixe... Read More

Key Insights

• 🤔 Ice slipperiness results from a thin film of water due to friction.
• 🥶 The film of water on ice is a mixture of ice water and crushed ice.
• 🥶 Ice skaters can glide due to the viscous nature of the water film.
• 🥶 The thickness of the water film on ice is minuscule compared to a human hair.
• 🥶 Scientists disproved the idea that ice fully transforms into liquid water when slippery.
• 🥶 The film of water on ice is crucial for reducing friction.
• 🥶 Ice slipperiness allows ice skaters to smoothly surf on snow.

Questions & Answers

Q: Why is ice slippery?

Ice is slippery due to a thin film of water formed on its surface by friction, creating a mixed state of ice water and crushed ice, allowing for smooth movement.

Q: What is the thickness of the film of water on ice?

The film of water on ice is incredibly thin, about one hundredth the thickness of a human hair, making it barely noticeable but enough to create slipperiness.

Q: How does an ice skater glide on ice?

Ice skaters can glide on ice due to the viscous nature of the film of water on the surface, which allows for smooth movement and makes it possible to surf on snow.

Q: Is it true that ice is fully liquid when slippery?

Contrary to common belief, ice is not completely liquid when slippery, but rather in a mixed state of ice water and crushed ice, with a thin film of water that creates slipperiness.

Summary & Key Takeaways

• Ice isn't completely liquid when slippery, but a mixed state of ice water and crushed ice.

• The film of water created by friction on ice's surface makes it slippery.

• Ice skaters glide on thin layers due to the viscous nature of the film.