球和圆盘

A shot is a heavy metal ball used in the sport of shot put, where athletes throw it as far as they can. The shot is typically made of steel or iron and has a smooth, round shape. It weighs different amounts depending on the age and gender of the athlete, but for adults, it generally weighs about 7.26 kilograms for men and 4 kilograms for women. During the event, the athlete must hold the shot close to their neck or chin before pushing it forward with a powerful movement. The goal is to throw the shot as far as possible within a marked throwing area.

A handball is a small, solid ball used in the sport of handball, which is played by teams of players who pass, dribble, and throw the ball in an attempt to score goals by getting it into the opposing team's net. The ball is typically made of rubber or leather and has a smooth surface for easy grip. Handballs are designed to be thrown at high speeds, so they are light enough to allow for quick passes and shots but heavy enough to travel accurately. The objective is to outscore the opponent by getting the ball into their goal within a set time frame.

A cricket ball is a hard, round ball used in the sport of cricket. It is typically made of a cork center wrapped in layers of string and covered with a red or white leather shell. It is designed to be durable and maintain its shape throughout a match, which can last several hours. The ball has a distinctive seam that can be used by bowlers to spin or swing the ball, making it a key element in the game's strategy. In cricket, the objective is to bowl the ball in such a way that it either hits the stumps or is caught by a fielder, while batters try to score runs by hitting the ball and running between the wickets.

A tennis ball is a small, hollow, ball used in the sport of tennis. It is made of a rubber core covered with a layer of felt, usually in a bright yellow color, which helps players see the ball more easily. It is designed to bounce well on the tennis court, providing players with control during rallies. Tennis balls are pressurized to give them a consistent bounce and speed, but they lose pressure over time, making them less effective for play. The main goal in tennis is to hit the ball over the net into the opponent's side of the court without letting it bounce twice.

A bowling ball is a heavy, round ball used in the sport of bowling. It is typically made of materials such as polyester or reactive resin, which allow it to roll smoothly down the lane. The ball has three holes for the fingers and thumb, allowing the player to grip it securely. Bowling balls generally weigh between 6 and 16 pounds and have a circumference of around 27 inches. The objective in bowling is to roll the ball down a lane toward ten pins arranged in a triangle formation, with the goal of knocking down as many pins as possible with each roll.

A billiard ball is a small, round ball used in cue sports like pool, snooker, and carom billiards. Typically made of hard materials such as phenolic resin or acrylic, billiard balls are designed to withstand impact while maintaining their smooth surface. In games like pool, the set includes a white cue ball and numbered colored balls, each with a distinct color and number. The objective is to strike the balls with a cue stick to pot them into pockets or achieve specific game goals, depending on the rules.

A rugby ball is an oval-shaped ball used in the sport of rugby. It is typically made of synthetic leather or rubber and is designed to be durable and easy to grip. Its unique shape allows players to pass it more easily, though it can be harder to handle than a round ball. The ball is used in both rugby union and rugby league, and the objective of the game is to carry, pass, or kick the ball to score points by either grounding it in the opponent’s goal area or kicking it over their crossbar.

A squash ball is a small, rubber ball used in the sport of squash. Squash balls are designed to be bouncy, but their bounce decreases as the ball warms up from impact with the walls and floor. Typically, they come in different types marked with colors, with each type offering a different level of bounce. The ball is struck by players using rackets, and the goal is to hit the ball against the front wall in such a way that the opponent cannot return it before it bounces twice on the floor.

A racquetball is a small, rubber ball used in the sport of racquetball. The ball is designed to bounce quickly off the walls of an indoor court, which is a key part of the game's fast-paced nature. It comes in different colors, with the most common being bright green or blue, making it easy to see during play. Players use a racquet to hit the ball, aiming to hit it against the front wall in such a way that the opponent cannot return it before it bounces twice.

A polo ball is a small, hard ball used in the sport of polo. Made from plastic or wood, it is designed to withstand the high-speed impact of the game. The ball is typically white or bright in color to ensure visibility on the grass field. Players use a mallet to strike the ball, aiming to hit it toward the opposing team's goalposts in order to score. The design of the ball allows it to roll smoothly and travel over long distances when struck.

A bocce ball is a round ball used in the game of bocce. The ball is typically about the size of a small melon, and players take turns throwing it toward a smaller target ball called the "pallino." The goal is to get the bocce ball as close as possible to the pallino, with points awarded based on proximity. The balls come in various colors, often brightly colored for visibility during play.

Pigskin is a common term for a football, traditionally made from leather. Despite the name, modern footballs are usually made from synthetic materials or cowhide, but the term remains popular. The ball has an oval shape, making it easier to grip and throw. It is designed for durability and is slightly inflated to maintain its structure during play. The textured surface helps players handle it securely, whether passing, catching, or kicking.

A table tennis ball is a small, lightweight ball used in table tennis. It is designed to be hollow and made of plastic, allowing it to bounce well on the table. The ball's smooth surface helps it travel quickly through the air, making spin and control important in the game. It is durable enough to withstand fast-paced rallies while remaining light for easy movement. It is usually white or orange to ensure visibility during play.

A water polo ball is a round ball designed for use in water polo. It has a textured surface that provides grip, even when wet, allowing players to handle and throw it accurately. The ball is slightly inflated to stay afloat on the water while remaining firm enough for passing and shooting. Made from waterproof materials, it is durable and maintains its shape during play. It is often brightly colored to improve visibility in the water.

A floorball ball is a lightweight, hollow plastic ball used in floorball. It has a round shape with small holes across its surface, reducing air resistance and allowing smooth movement. The ball is designed for fast-paced play, rolling quickly and responding accurately to passes and shots. Its durable material ensures it can withstand repeated impacts while maintaining its shape. The bright color of the ball helps players see it easily on the court.

A korfball ball is a round ball used in korfball, designed for passing, shooting, and bouncing during the game. It is slightly smaller and lighter than a soccer ball, making it easier to handle and control. The ball is made of synthetic materials for durability and a good grip. Its surface allows for accurate throws and catches, ensuring smooth gameplay. The ball's design helps players pass quickly and aim precisely when shooting at the korf.

A pallino ball is a small, round ball used in bocce as the target that players aim to get their bocce balls closest to. It is typically made of a solid, durable material to withstand repeated impacts. Its smaller size and smooth surface allow it to be easily rolled across the playing area. The position of the pallino determines the challenge of each round, as players must carefully control their throws to get as close to it as possible.

A sepak takraw ball is a lightweight, woven ball used in the sport of sepak takraw, a game that combines elements of soccer and volleyball. The ball is typically made from rattan or synthetic materials and has a unique, hollow, spherical shape. Its design allows for fast, high-flying passes and shots, as players use their feet, head, knees, and chest to hit the ball over a net. The ball is durable enough to withstand the intense action of the game while being light enough for quick, precise maneuvers.

A fistball is a ball used in the sport of fistball, a game similar to volleyball where players hit the ball with their fists or forearms instead of using their hands. The ball is typically made of leather or synthetic materials and is designed to be durable yet light enough for easy control and powerful strikes. It is slightly larger and softer than a volleyball, allowing players to hit it with their fists while minimizing the risk of injury. The ball is used in both indoor and outdoor versions of the sport.

A sliotar is a small, hard ball used in the sport of hurling, an Irish field game. The ball is typically made of a rubber core and is covered in leather. The sliotar is designed for high-speed play, allowing players to strike it with a wooden stick over long distances. The ball is usually white or a mix of colors, helping players track its movement on the field. Its firmness and shape help it travel quickly, making it a central part of the fast-paced game.

A bandy ball is a small, hard ball used in the sport of bandy, which is similar to ice hockey but played with a ball instead of a puck. The ball is typically made of plastic or rubber and is similar to the size of a tennis ball. It is lightweight, allowing players to control and pass it easily on the ice. The ball's bright color, often orange or yellow, ensures good visibility during play. Since bandy is played on ice, the ball is designed to be durable enough to withstand the cold and the impact from the players' sticks.

A flying disc, often called a frisbee, is a flat, circular object designed to be thrown and caught in various sports, such as ultimate frisbee or disc golf. It is typically made of plastic and is lightweight, allowing it to glide through the air with ease. The edges of the disc are slightly curved, which helps it maintain stability while flying. Its design makes it easy to throw with various spins, allowing for precise control over distance and direction. Flying discs are often brightly colored for visibility during outdoor play.