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/Name:
Date: 9/8/2018
Graded Assignment
Lab Report: Acceleration
You may either fill this out on your computer or print it out and fill it in by hand. When you have finished, submit this assignment to the acceleration lab drop box in the OHS by the due date for full credit.
Total score: ____ of 50 points
Data: (____/ 5 points)
Distance (m) Average time (s)
0.00 0
0.20 0.379
0.40 0.658
0.60 0.873
0.80 1.058
1.0 1.228
Height of incline = 40 m
Angle () of incline = 20o
Length of incline = 1.0 m
Graph: (_____/ 5 points)

4181475301625Show one Average Velocity calculation:
Average Velocity (m/s) =Distance (m)Average time (s)Average Velocity (m/s) =0.200.379=0.529 00Show one Average Velocity calculation:
Average Velocity (m/s) =Distance (m)Average time (s)Average Velocity (m/s) =0.200.379=0.529 Calculations: (____/ 5 points)
Distance (m) Average time (s) Calculated Average Velocity (m/s)
0.00 0 0
0.20 0.379 0.529
0.40 0.658 0.609
0.60 0.873 0.687
0.80 1.058 0.755
1.0 1.228 0.814
Velocity – Time Graph: (_____/ 5 points)

Acceleration Calculation: (___ / 5 points)
left34290Show your acceleration (slope) calculation:
Slope =Change in Velocity (ms)Change in Time (s)
Slope =0.6-00.8-0=0.75 m/s2
00Show your acceleration (slope) calculation:
Slope =Change in Velocity (ms)Change in Time (s)
Slope =0.6-00.8-0=0.75 m/s2

Conclusions:
(Score for Question 1: ___ of 9 points)
How did the displacement of the ball change as it rolled down the ramp? Discuss your data and/or a graph to back up your answer.

Answer:
The displacement of the ball increased progressively with time as the ball rolled down the ramp. The increase in displacement with respect to time is shown in the displacement – time graph above.
(Score for Question 2: ___ of 8 points)
How did the velocity of the ball change as it rolled down the ramp? Discuss your data, calculations, and/or a graph to back up your answer.
Answer:
The velocity of the ball increases with respect to time as the ball rolls down the ramp. The graph of velocity against time plotted above shows the relationship of velocity and time as the ball rolls down the ramp. The plotted line of best fit gives the average gradient of the actual velocity – time graph which aids us in calculating the average acceleration of the rolling ball.
(Score for Question 3: ___ of 8 points)
How did the acceleration of the ball change as it rolled down the ramp? Discuss your data, calculations, and/or a graph to back up your answer.
Answer:
The ball accelerates quickly down the ramp when it is released. After a short while, due to friction resistance, air resistance, and other factors, the ball starts to decelerate and it will eventually come to a stop. The relationship of the balls acceleration with respect to time is shown above.