I need help with the attached assignment
Lab:Graphing Motion
Student Lab Report
In this lab activity, you will investigate the motion of an object and create a position-time
graph and a velocity-time graph based on your data.
Materials:
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stopwatch with lap feature
battery-powered toy car
wind-up toy car
tape measure or meter stick
long, flat surface
duct or masking tape
colored pencils
Procedure:
1. Using the tape, mark a starting point and an ending point on the floor.
2. Mark several (3–5) positions in between, keeping the distance between each
piece of tape the same.
3. Measure the distance from the starting point to each piece of tape using the
meter stick or tape measure. Record your distances.
4. Place the battery-powered car behind the starting line (the first piece of tape).
Turn it on, and at the same time it starts to move, start the stopwatch.
5. Each time the car reaches a new piece of tape, press the lap button on the
stopwatch. Be consistent with when you press the lap button. For example, push
it each time the car’s front wheels hit a piece of tape. Record the times.
6. Repeat steps 4–5 several more times (at least four).
7. Repeat steps 4–6, but this time, use the wind-up car.
Data:
battery-powered car
Distance
(m)
Time (s)
Trial 1
Time (s)
Trial 2
Time (s)
Trial 3
Time (s)
Trial 4
Time (s)
Trial 5
Average
wind-up car
Distance
(m)
Time (s)
Trial 1
Time (s)
Trial 2
Time (s)
Trial 3
Time (s)
Trial 4
Time (s)
Trial 5
Average
Analysis:
1. Find the average time(s) for each distance.
2. Plot the averages on a position vs. time graph. (NOTE: You can make two
separate graphs, or you can plot the data from the battery-powered car in one
color and the data from the wind-up car in a different color.)
3. Calculate how fast each car was going by determining the slope of the lines on
your position-time graph. Since velocity is the change in position over time, the
slope of the line gives you the velocity of the car.
4. Plot the velocity of each car on a velocity vs. time graph. (Again, you may create
two separate graphs or one graph with two different color lines.)
Questions:
Answer each of the following questions.
1. What do you notice about the slopes of the lines on the position vs. time graph?
Why are there differences in these lines?
2. What do you notice about the lines on the velocity vs. time graph? What
accounts for these differences?
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