1 The area under an acceleration-time graph has units of....
a ... m/s
b ... m/s/s
c ... m.s
d ... m.s.s
Questions 2-5 refer to the velocity-time graph at right for a mass moving in a straight line under the influence of a single unbalanced force.
2 The distance travelled in the first 2 seconds is....
a.... 5 m
b ....10m
c.... 20 m
d.... none of the above.
3 The force on the mass is greatest at....
a.... 1 s
b.... 3 s
c.... 5 s
d.... 6 s
4 The mass will return to the starting point....
a ... at 5 s.
b.... at some time before 6 s
c.... at 6 s
d.... at some time after 6 s
5 The graph is shown as straight line segments because....
a.... velocity time graphs are usually straight lines.
b.... the computer draws straight lines.
c..... to make calculations easier.
d.... we only deal with constant forces in IB Physics.
Questions 6-9 refer to the velocity-time graph at right.
A student has been bouncing a ball and making motion graphs. The Several points are identified on the graph.
6 At what times does the ball have zero velocity?
a ........... b ...........c ...........d
7 At what time is the ball compressed on the floor?
a ........... b ...........c ...........d
8 At what time is the ball farthest from the floor?
a ........... b ...........c ...........d
9 At what time does the ball have the greatest acceleration?
a ........... b ...........c ...........d