1 The graph at right is a distance-time plot of a moving ball.
a What program could you use to obtain data for graph like this?
b At what time does the journey start?
c How far is the ball from the BAT at 0.6 seconds?
d How far is the ball from the BAT at 1.3 seconds?
e How many data points were collected per second?
2 The graph at right is a distance-time plot of a moving ball.
a At what time is the ball furthest from the BAT?
b How far is the ball from its starting point at 2.4 seconds?
c Write down one time when the ball is not moving.
d The distance moved away from the BAT is positive. Between what times is the ball moving up [away from the bat?
e Between what times was the ball moving most quickly?
f Explain how you got your answer to number 5.
3 The graph at right is a velocity-time plot for a ball moving above a BAT.
a The graph was made in MacMotion. How would you copy and print the graph.
b At what time does the ball start to move?
c How fast is the ball going at 1.0 seconds?
d At what times is the ball stationary?
e At what times is the ball moving backwards?
4 The graph at right is a velocity-time of a ball rolling down a table. A straight line has been fitted to the part of the graph for which the ball was rolling freely.
Note: the ball was pushed to start it moving, and then it rolled freely.
a At what time was the ball pushed?
b At what time was the ball left to roll freely?
c Why do you think the data points do not quite fit the line?
d During what time is the acceleration of the ball nearly constant?
5 The graph at right is a velocity-time plot of a ball rolling down a table with a small step as shown.
a At what time does the ball reach the step?
c At what times is the acceleration of the ball constant?
d Why do the two straight line parts of the graph have the same slope?
6 A basket ball at right is released from rest. it was expected to roll with constant acceleration.
a Describe what happened from the evidence provided by the three graphs.
The ball is released again from rest.
b Describe what happened from the evidence provided by the two new graphs.
7 The velocity-time graph at right shows a ball rolling down a flat inclined table.
a What is the change in velocity from zero time to 1.2 seconds.
b What is the missing word.
Acceleration is the ___________ of the velocity time graph.
c What is the acceleration of the ball?
d How far has the ball rolled from zero to 1.2 seconds?
e Explain how you got your answer to number 4.
8 A ball is at rest at zero time at the higher end of an inclined table. It then begins to roll. The acceleration is constant. After one second it is moving at 0.5 m/s.
a Sketch the velocity-time graph you would expect to see for the full 2.0 seconds that it remains on the table.
b What is the speed of the ball at 1.5 seconds?
c What is the length of the table? Show your working on the graph.
9 A ball is stationary on an inclined table which is not flat.
a How will the acceleration of the ball change as it rolls down the table?
b Sketch a graph showing the acceleration of the ball as it rolls to the end of the table.
10 A distance-time graph is shown for a cart which is pushed and then allowed to roll freely across a level floor.
a At what time did the cart begin to move?
b What was the maximum speed of the cart?
c What can you say about the acceleration of the cart from 3.0 to 7.5 seconds?
d How far did the cart move between 1.5 and 7.5 seconds?
e What was the average speed of the cart from 1.5 to 7.5 seconds?
11 A ball is rolled on an inclined table. The BAT is at the top of the table. Two graphs are plotted.
a Describe the motion of the ball.
12 The graph was made in MacMotion (a program that preceeded Logger Pro). It shows the velocity of a rolling ball.
a What is the speed of the ball at zero seconds, and at 1.0 seconds.
b Describe the motion of the ball.
c What is the acceleration of the ball at 1.0 seconds.
d What is the total distance the ball traveled from zero to 1.2 seconds?
13 The acceleration-time graph at right for a ball released from rest and allowed to roll freely down a flat incline is shown.
a Why is the graph not exactly like the graph in a Physics text that was drawn like this?