The inside of a ping-pong ball is a hollow structure that is filled with normal air. Many people think ping-pong balls are filled with flammable gas because they can burn quite dramatically when ignited, but this is a product of the ball's chemical composition, not the ball's contents.
Ping-pong balls are generally made of celluloid, which is a highly flammable material. In the past, ping-pong balls were often made of acidified cellulose, a material that gradually becomes less stable over time. Older ping-pong balls sometimes spontaneously ignited when exposed to friction or a slight spark, giving rise to the myth that ping-pong balls contain an explosive gas.Learn More
Ping pong balls are filled with air. The International Table Tennis Federation has strict rules on the production of table tennis balls, including rules for size, weight and hardness.Full Answer >
Putting spin on a ping pong ball requires a stroking movement of the paddle against the ball when hitting it. The paddle must be angled and then brushed across the ball to add spin. With practice, backspin, topspin, and sidespin can be applied to a ping pong ball.Full Answer >
A ping pong ball weighs 2.7 grams, which is the required weight for Olympic competition as stated on the Table Tennis Master website. It is hollow, made of celluloid and filled with gas.Full Answer >
Balls, including ping pong balls, bounce after they hit a solid surface because an equal and opposite force from the surface pushes them back upward. Ping pong balls have a tendency to bounce well because they're made out of a plastic material that is especially stiff and springy.Full Answer >