The trombone is known for it's slide.
A trombone has no valve- only a slide. A valve trombone, or a marching trombone, though, have three valves.
A trumpet uses valves and is pitched higher than a trombone. The trombone uses a slide instead of valves, and is pitched between the trumpet and the tuba.
Yes, but there are trombones that do have valves. Bugles- no valves
Trombone. Or, since you specified bass a bass trombone.
A trombone
Yes. There is an instrument called a "valve trombone", which basically looks like a trombone except that the slide doesn't move and there are three valves near the mouthpiece that look a lot like trumpet valves. In fact, trumpet players are often asked to play valve trombone in middle and high school jazz bands when no regular trombone players are around to fill the seat. This is possible because the fingerings on a valve trombone are exactly the same as those on a trumpet. Some trombone players, me included, find the valve trombone to have a somewhat flatter (tone, not pitch) sound than a traditional trombone. However, a good enough musician can easily achieve a beautiful sound on a valve trombone. Additionally, there is a horn called a marching trombone that also three valves. It is similar to a baritone, but the tubing length and bore sizes are closer to those of a trombone.
yes the trombone does
The trombone is the only instrument in the brass section with no keys or valves. It only has a slide.
Trombone
When playing a Trombone the player can make it slur. By blowing and moving the valves at the same time.
The trombone - it has a slide instead of valves, to change the pitch of the note.