Multiple Choice)

(1)

On a graph showing position on the vertical axis and time on the horizontal axis, a parabola that opens upward represents

(a) A positive acceleration.

(b) A negative acceleration.

(c) No acceleration.

(d) A positive followed by a negative acceleration.

(e) A negative followed by a positive acceleration.

(2)

On a graph showing velocity on the vertical axis and time on the horizontal axis, zero acceleration is represented by

(a) A straight line with a positive slope.

(b) A straight line with a negative slope.

(c) A straight line with zero slope.

(d) Either (a), (b), or (c).

(e) None of the above.

(3)

On a graph showing velocity on the vertical axis and time on the horizontal axis, constant acceleration is represented by

(a) A straight line with a positive slope.

(b) A straight line with a negative slope.

(c) A straight line with zero slope.

(d) Either (a), (b), or (c).

(e) None of the above.

(4)

Which graph of v versus t in Figure best describes the motion of a particle with positive velocity and negative acceleration?

(5)

Which graph of v versus t in Figure best describes the motion of a particle with negative velocity and negative acceleration?

(6)

A graph of the motion of an object is plotted with the velocity on the vertical axis and time on the horizontal axis. The graph is a straight line. Which of these quantities cannot be determined from this graph?

(a) The displacement from time t = 0

(b) The initial velocity at t = 0

(c) The acceleration of the object

(d) The average velocity of the object

(e) None of the above.

(a) (b) (c) (d) (e)