Question

The blades of ice skates are quite thin, so the pressure exerted on ice by a skater can be substantial. Explain how this facilitates skating on ice.

Name: Problem 94, Chapter 12: Chemistry
Uploaded: 2020-07-28T21:28:26-08:00
Duration: 1 min 33 s
Channel: Shazia Naz
Description: The blades of ice skates are quite thin, so the pressure exerted on ice by a skater can be substantial. Explain how this facilitates skating on ice.

   The blades of ice skates are quite thin, so the pressure exerted on ice by a skater can be substantial. Explain how this facilitates skating on ice.

Chemistry

Julia Burdge 1st Edition

Chapter 12, Problem 94

Instant Answer

Solved by Expert Shazia Naz

07/28/2020

Step 1

Step 1: The pressure exerted by the skater on the ice is given by the formula $P = \frac{F}{A}$, where $P$ is the pressure, $F$ is the force exerted by the skater (which is essentially their weight), and $A$ is the area over which this force is distributed (the Show more…

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The blades of ice skates are quite thin, so the pressure exerted on ice by a skater can be substantial. Explain how this facilitates skating on ice.

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Key Concepts

Pressure

Pressure is the force exerted per unit area. In many physical scenarios, including skating, a high pressure can be achieved when a relatively large force is concentrated over a small surface area, impacting how materials interact at their contact points.

Pressure Melting

Pressure melting is the phenomenon where the melting point of a solid, such as ice, decreases when it is subjected to high pressure. This reduction in the melting point allows a thin layer of liquid water to form even at temperatures below the normal melting point of the material.

Lubrication

The thin layer of water created by pressure melting acts as a lubricant, reducing friction between surfaces. In the context of skating, this lubrication eases the movement of the skate blade over the ice by minimizing resistance and allowing smooth gliding.

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