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Introduction
Introduction
In this lab, we collected data to determine the speed of
different Hot Wheel cars. Speed is how far an object goes
during a specific time. The formula for speed(s) is distance(d) divided by time(t). (d/t=s)
Research Question: How will the cars compare when traveling on different ramps?
Hypothesis: If the car has bigger wheels, then it will go slower.
Independent variable: Car/ wheel size
Dependent variable: the speed of the cars
Methods and Materials
Methods and Materials
Materials: cars, 2.4m ramp, 1.2m ramp, timer, 5 books,
a chair, a chrome book, a pencil, and a calculator.
Methods:
Get a car.
Set up the 1.2 meter track on the chairs.
Put the books at the end of the tracks.
Set a timer.
Slide the car down the track for 4 trials.
Record the time.
Repeat for each team member in the group with a different car.
Repeat the entire process on a 2.4 meter track.
Conclusion
Conclusion
Claim: The cars were faster on the 2.4 m ramp,
Evidence: The cars' speeds on the 1.2 meter ramp ranged from .79 m/s to 1.90 m/s on the 2.4 meter ramp the range was 1.03 m/s to 2.96 m/s
Trends: All of the attempts with the red cars on the 2.4m ramp went faster than the attempts gray car on the 1.2m ramp.
Reasoning: I know this because the speed range for the red car was 1.72m/s and the speed for the gray car was .90.
Newton's Law
Newton's Law
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