How does the velocity of a falling object change with time? How would you describe the mathematical relationship between velocity and time of a falling object?

Increases with time via the relationship:

velocity = acceleration * time = g * t

Explanation:

Since the object is falling under the constant acceleration due to gravity, its velocity is increasing with time. Such relationship can be described via the equation:

velocity = acceleration * time = g * t

Where the direction of the acceleration due to gravity (g) (pointing downwards) is in the same direction of that of the object's velocity.

an ion is a charged atom or molecule. it is charged because the number of electrons do not equal the number of protons in the atom or molecule. an atom can acquire a positive charge or a negative charge depending on whether the number of electrons in an atom is greater or less then the number of protons in the atom.