"Ohmic" means it obeys Ohm's law (V=IR, i.e., voltage = current x resistance). Since Ohm's law can be understood to be a definition of resistance, what this really means is that the material has a constant resistance. In such a case, the slope of current as a function of voltage will be a straight line passing through the origin.
The slope of the speed-vs-time graph is the magnitude of acceleration.
Exactly.
The slope of the speed/time graph is the magnitude of acceleration. (It's very difficult to draw a graph of velocity, unless the direction is constant.)
instantaneous magnitude of velocity
The rate of change in accelleration.
Yes, acceleration is the slope of a velocity versus time graph.
The slope of the speed-vs-time graph is the magnitude of acceleration.
speed
The slope of a force vs. time graph is equal to the change in momentum or the Impulse.
exactly
Exactly.
Tangent of the slope at any point = velocity
The slope of the curve.
the slope would be grams/liter, so most likely density
instantaneous magnitude of velocity
The rate of change in accelleration.
The slope of the speed/time graph is the magnitude of acceleration. (It's very difficult to draw a graph of velocity, unless the direction is constant.)