Question

How is acceleration different from speed and velocity?

Answer 1

acceleration is the rate of change in velocity.

Explanation:

Velocity and speed are sort of the same, however one often speaks about velocity when talking about both the speed and direction of the movement. Acceleration however, is the rate of change in velocity.

What we mean by this is that if an object has constant acceleration `a`, then it has a velocity `v=at`, where `t` is time (assuming the velocity is `0` when `t=0`). More precisely the definition of acceleration is `a=(dv)/dt`, but since I'm not sure if you know anything about differential calculus, I'll leave it at that.