260-280 gr. A standard volleyball should have a circumference of 65-67 cm and weigh 260-280 kilos (9-10 oz). The internal pressure of the ball should be 0.30–0.325 kg/cm2 (4.26-4.61 psi).
The weight of a volleyball can vary depending on the material it is made of. Traditional balls are usually made of leather or synthetic fibers. Modern balls may be composed of polyurethane foam with rubber bands covering its surface.
Volleyballs can be heavy if they contain metal weights or if they are oversize. Size 14 volleyball has a weight of 290 grams, while size 16 has 340 grams.
Weight varies according to age, gender, and physical condition of the person. Adult men between 70 and 80 kilograms (154 and 176 pounds) are typically considered strong enough to play volleyball at the high school level. Women of the same age group usually weigh less than 60 kilograms (132 pounds).
The most common weight for a volleyball is 260 grams. This is the minimum requirement by USA Volleyball. If a ball weighs more, it must be listed on the label as having a maximum weight of 280 grams. There are cases where volumes are also given instead of weights.
The adult indoor volleyball ball has a circumference of 65 to 67 cm, or 25.5 to 26.5 inches. They are 9.2 to 9.9 ounces (260 to 280 grams) in weight. They have psi values ranging from 4.3 to 4.6, or 0.3 to 0.325 kgf per centimeter squared. The cover is made of leather or synthetic materials.
The size of the ball depends on the height of the server. A small ball is suitable for a server who is around 1.70 m (5 ft 7 in) tall, while a large ball is best for someone who is about 1.80 m (5 ft 9 in). Volleyball balls come in different sizes, from junior league games all the way up to the largest court permitted by law (90 cm or 35 in across).
The ball must be inflated when played. This can be done by either blowing into the ball or using a pump-action ball machine. If the ball becomes deflated during play, it is too low and needs to be raised with the help of a pole or a ladder.
Playing with an underinflated ball reduces your mobility and makes you prone to injuries. Therefore, ensure that you always use an appropriate pressure when inflating your ball.
They are 9.2 to 9.9 ounces (260–280 grams) in weight. These balls have an interior pressure of 4.3 psi, or 0.30 kgf per square meter. These balls have an interior pressure of 4.3 psi, or 0.30 kilo-grams per square meter.
Volleyballs are heavier than basketballs and inflate more slowly because they do not contain air pockets. Volleyballs are also larger than basketballs; the average size of a college volleyball is 62 to 64 cm in diameter, while that of a high school basketball is 50 to 52 cm.
There are two types of volleyballs: open and closed. Open volleyballs are exactly what they sound like - there are no seams on the surface so they can be used by anyone at any level. This makes them very popular with young players who want to play like their pro counterparts but don't want to deal with the pain of sewn balls. Closed volleyballs are worn under clothing with a rubber band attached around their neck. These are designed for use by adults who may have trouble holding an open ball in position.
The first organized volley game was played in 1845 at the University of Oxford; it was called "vole" because it used wooden balls carved by hand from a single block of wood.
The hardness of the ball relates to its compression set after being pressed under high pressure for a long period of time. Harder balls are more durable and last longer before needing replacement. Soft balls will compress more easily under pressure; thus they deform more under force and can be said to be more flexible.
Volleyballs are harder than basketballs and footballs. Volleyballs are also harder than squash balls (which are usually much softer). A squash ball will typically compress between 7 and 10 percent while a volleyball will compress about 15 percent.
As you can see, volleyball balls are quite hard compared to other sports balls. This is because there's more rubber in a volleyball than another sport where hardness isn't as important. Footballs and basketballs don't have this problem since they're made out of leather or synthetic materials instead of rubber.
Also, volleyball players often wear shoes with spikes on them. These spikes go right into the field and help the player maintain contact with the ball even when it's not perfectly balanced. Spikes aren't used in any other sport so their effect isn't felt there.
Indoor volleyballs are available in kid and adult ball sizes. The diameter of the youth ball is around 63 to 65 cm (25 to 26 inches). The weight of the ball ranges between 9.2 and 9.9 ounces. An adult ball has a circumference of 65 to 67 cm, or 25.5 to 26.5 inches, and weights around the same. They are similar in size to an outdoor beach volleyball.
Beach balls are usually larger than indoor balls. The size of a beach ball tends to be about 18 inches in diameter. This gives it more air space which makes it lighter and easier to handle. Indoor balls are usually smaller so they can be played on court surfaces that do not have enough gumption to support a large ball.
The difference between beach and indoor balls comes down to how much sand it contains. A beach ball will always have at least some amount of sand inside it because it's meant to be used on real beaches. But an indoor ball can be completely plastic with no sand at all - it's just for show. Although these show-ball courts are designed to look like real beaches, they don't contain any sand so they cannot be used with real beach balls.
Show-ball courts are often used by universities as practice facilities since they provide a surface that is close to what you'll find on a real beach. There are also indoor courts used for exhibitions and competitions.
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