1.  Measurements of acceleration are given in units of  distance/time divided by time
            a.  distance/ time        c.  time²/distance
            b.  time/distance        d.  distance/time divided by time

    2.  A skateboarder slowing down is an example of  negative acceleration and deceleration.
            a.  negative acceleration        c.  deceleration
            b.  negative speed.                d.  both a and c are correct

    3.  Acceleration can be measured in meters/hour/second
            a.  meters/ section            c.  meters/hour/second
            b.  km2/ hour                    d.  cm/second

    4.  A car accelerates at -20 km/hr/sec in a straight line.  We know that it is slowing down
        a.  speeding                    c.  moving at a constant speed
        b.  slowing down            d.  none of the above

    True or False
        If the statement is true, write true.  If it is false, change the underlined word or words to make the statement true.

    5.      is             A merry go around traveling at a constant speed of 4 m/s is not accelerating.

    6.  acceleration The slope of a speed vs. time graph will equal the speed of the object.
 

    Fill in the line to complete each statement:

    7.  To calculate acceleration, divide the change in  velocity by the time during which acceleration occurs.

    8.  The velocity of an object gives both its speed and direction

    9. acceleration occurs when the velocity of an object changes.

    10.  Acceleration refers to increasing speed decreasing speed or change in direction

    11.  deceleration  is another word for negative acceleration

Solve

    12.  A car is traveling at 25 km/hr speed up to 55 km/hr over a period of 15 seconds.  Calculate the acceleration of the car

            a = Vf - Vi   =   55 km/hr - 25 km/hr   =  30 km/hr     =   2 km/hr
                     t                        15 seconds           15 s                         s