Is the Tennis Ball Hard or Soft?
Tennis balls are neither hard nor soft in the traditional sense. They are classified as "medium" firmness by the International Tennis Federation (ITF). The core of a tennis ball is made of pressurized rubber, which is covered by a woven felt fabric. This gives the ball its unique combination of firmness and elasticity.
The ITF has specific regulations for the hardness of tennis balls. The ball must bounce between 53 and 58 inches when dropped from a height of 100 inches on a hard surface. This ensures that the ball has a consistent bounce and speed, which is essential for fair play.
The hardness of a tennis ball can affect its performance. Hard balls travel faster and have less bounce than soft balls. They are typically used on faster surfaces, such as hard courts and grass. Soft balls travel slower and have more bounce. They are typically used on slower surfaces, such as clay courts.
Related Questions and Answers
- What is the ITF's classification for the firmness of tennis balls? Medium
- What materials are used to make a tennis ball? Pressurized rubber core and woven felt fabric
- What are the ITF's regulations for the hardness of tennis balls? They must bounce between 53 and 58 inches when dropped from a height of 100 inches on a hard surface.
- How does the hardness of a tennis ball affect its performance? Hard balls travel faster and have less bounce than soft balls.
- What surfaces are hard balls typically used on? Hard courts and grass
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