Uniform Motion Lab

advertisement
Science 10
Uniform Motion Lab
Name(s): __________________
___________________
_________________
In this lab activity, you and your group (max. three) will be investigating the concepts of uniform
motion, distance-time graphs and laboratory skills (sensor technology, measurements, graphing).
The purpose of this experiment is to drive a remote control car to simulate UNIFORM
MOTION, then create a distance-time graph to verify whether the cart experienced uniform or
non-uniform motion.
Problem:
Does a remote control experience uniform motion when it is driven over a
certain time period, as measured using a stopwatch?
Hypothesis : I believe that the dynamics cart will experience ………………………… motion,
because ……………………………………………………………………………..
………………………………………………………………………………………
………………………………………………………………………………………
Materials:
Stop watch
Remote control car
Remote control
Ruler
Procedure:
1. Set up a straight course 20 m long depending on the length of your hallway.
2. Mark the course with tape at the 1m, 2m, 3m, 5, 10, 15, and 20m.
3. Start the car at the zero meter mark and record the time that the car passes each marked
location.
 You must ensure your car is moving at a constant speed!
4. Repeat steps 2-4 for a second trial, but have your car move significantly faster than last
time, while maintaining a constant speed.
Observations:
Table 1. Measurements of the distance a remote control car has traveled from its starting point,
as measured every 2.0 seconds using a stopwatch
Trial One (Slower)
Time (s)
Trial Two (Faster)
Time (s)
Distance from start (m)
0
1
2
3
5
10
15
20
Science 10
Analysis & Interpretation:
Answer the following questions, using complete sentences.
1. Draw one distance-time graph that has both sets of data (trial one & trial two) on it.
Please include a legend to show which line of best fit represents each set of data.
2. What is the shape of each graph?
3. What do the shapes of the graphs tell us about the motion of the dynamics cart?
4. What is the answer to the laboratory problem?
5. Describe why the two lines of best fit are at different angles.
6. Why do you think scientists always run two or more trials for their experiment?
Science 10
Evaluation:
Refer to your hypothesis for this lab. Write a paragraph that covers the following topics:
•
•
•
Did your hypothesis correctly predict your results? Explain why or why not.
Give at least one (1) suggestion for how you might improve the experimental design of this
lab (materials, procedure, set-up, etc.).
As a result of your findings, give at least one (1) more question that could be further
investigated.
Science 10
Download