When the same person hits the ball twice in a row, it is called a double hit.
you play it by rallying a ball back and forth...
Table tennis rackets are used to hit the ball back and forth.
A tennis racquet is not a simple stick. It has a handle and a tight mesh across a circular frame that is used to hit the tennis ball back and forth.
You might mean "ping pong." The main basis of the game is for two players to hit a ball back and forth to each other using table tennis rackets. It is also called "table tennis," similar to tennis.
The baseline
Moving back and forth in time is called time travel.
Reciprocating.
That is called oscillation.
tennisballs are used to play tennis because if u use gollfball the ball would not go back and forth and if u use a basketball it would be to big.
its d ball like in tennis but played different
The best strategy in tennis is to hit the ball where the opponent isn't. You will also win if you keep your opponent running around back and forth, which will tire them out.
Assuming you mean back and forth from sideline to sideline or baseline to baseline, that would be called a suicide.