IB Physics SL A.1.1 Position, velocity and acceleration Question Bank

Practise IB Physics SL A.1.1 by interpreting position, velocity and acceleration in motion graphs and vector situations.

Exam points

Interpret the gradient or area of a motion graph to identify position, velocity or acceleration.
Describe the motion of an object from a position-time or velocity-time graph.
Use vector or graph evidence to determine a possible resultant and state its direction or magnitude.

[Maximum number: 3]

A ball of mass 0.250 kg is released from rest at time t=0, from a height H above a horizontal floor.

Figure for Question A.1.1—Position, velocity and acceleration question 1 — IB Physics SL

The graph shows the variation with time t of the velocity v of the ball. Air resistance is negligible. Take $g=-9.80 \mathrm{~ms}^{-2}$ . The ball reaches the floor after 1.0 s .

(a)

Label the time and velocity graph, using the letter M , the point where the ball reaches the maximum rebound height.

[ 1 ]

M at $1.6 \mathrm{~s}$

(b)

State the acceleration of the ball at the maximum rebound height.

[ 1 ]

« $g=>9.80<\mathrm{ms}^{-2} \gg$

Marking guidance:

Accept 9.81, 10 or a plain "g" Ignore sign if provided.

(c)

Draw, on the axes, a graph to show the variation with time of the height of the ball from the instant it rebounds from the floor until the instant it reaches the maximum rebound height. No numbers are required on the axes.

[ 1 ]

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A.1.1—Position, velocity and acceleration question 1

Question (a)

Question (b)

Question (c)