I'm fourteen. I'm relatively new to tennis, and I haven't taken physics in school yet.
Haha. I didn't take physics in school (in the past) and I understood spins, just because I was a really avid slicer when I started out and I went crazy when I "
discovered" sidespin. I was thinking, WHOA, how am I making the ball CURVE? After a little bit of personal researching, I taught myself the physics of tennis. Also, as high school physics tend to not study tennis balls [Magnus Effect, specifically], I kind of just sat down, thought about it, drew a few tennis balls on paper and speculated the effects of spin.
You don't really need to take a physics course to understand spin, you just need to think about it for a second and you'll get it.
Well, I'm right handed, so I hit right to left normally. What I'm thinking now is that a kick serve would be easier than a reverse. Kick serves have a left to right motion on the ad court, and I found those quite tricky. This looks like I won't be hitting reverse serves soon, my tennis coach doesn't advocate reverses, but rather discourages them.
You misunderstand me. I'm talking about the flight path of your racquet brushing the ball. For Righty's, a regular spin serve will always be left to right. (except for kick, but even then it's more like, swing up and then deviate right. Still going RIGHT.)
If you hit right to left normally, you're already doing reverse serves.
Also, you said in a previous post that you were relatively new in tennis. After a bit, you'll find that spin serves aren't complicated at all. However, right now... should you really be trying out reverse serves if you're still having trouble with the kick? (Though I'm being an absolute hypocrite here as I learned the reverse slice serve before the kick.)
As for twist, you use a slice grip on a kick serve stance, but you hit the ball in a different location? I'll look into the other threads of the forum to find behavior, etc. of spins.
Slice grip? That's not a grip, and people can use various grips for a slice serve so "slice grip" is kind of vague. The twist serve is best performed with an Eastern Backhand grip (Continental can also be used). For a twist serve, the ball should be tossed further behind you than a regular kick (though you don't HAVE to... I've done twists with a regular kick serve toss)
There are some really good threads on this forum regarding the twist serve (I started one).
http://tt.tennis-warehouse.com/showthread.php?t=225757
http://tt.tennis-warehouse.com/showthread.php?t=216647