Question

Which of the following helps with ice skating?

• A. Rolling friction
• B. Sliding friction
• C. Static friction
• D. Gliding friction

Hint:

In ice skating, the skater benefits from low sliding friction between the skates and the ice, which helps them glide effortlessly.

Answer 1

The Correct Option is B

Step 1: Understanding friction.
Friction is the resistance to motion between two surfaces in contact. Different types of friction play various roles depending on the situation. Step 2: Friction in ice skating.
In ice skating, \textit{sliding friction} is the key frictional force at play. The smooth ice reduces friction, allowing the skater to glide easily across the surface. This minimal friction helps maintain speed and smooth motion. Step 3: Comparison with other options.

• (A) Rolling friction: Incorrect. Rolling friction occurs when an object rolls over a surface, such as with wheels. It is not the main force in ice skating.
• (B) Sliding friction: Correct. Sliding friction is the friction between the ice and the skates, and it is the main force at work in ice skating.
• (C) Static friction: Incorrect. Static friction is the force that prevents an object from starting to move, which does not directly relate to ice skating.
• (D) Gliding friction: Incorrect. While "gliding" refers to smooth movement, the correct term for the friction involved in ice skating is sliding friction.

Step 4: Conclusion.
Therefore, the correct answer is (B) Sliding friction, as it is the force responsible for movement in ice skating. Final Answer:} Sliding friction.