Prediction
My prediction was as the ramp’s steepness increases, the car’s velocity will
also increase. The reason of this belief was that the slope of the hill
will be added to the speed of the car. Another prediction is
heavier the mass is, the object will run down the ramp faster. I thought the
increased weight of the object would be added on the velocity of an object.
Un-massed Car Table
Massed Car Table
Position and Time Graph
Conclusion
Car rolling down the hill travels acceleration. Whether the car is positive or not,
when an object has increased it’s velocity or speed in a given time.Evidence
could be seen in the Lab table and graph. In the Lab table, velocity
of massed and un-massed car increases gradually over time. Also, the
line in the graph isn’t straight, curved. These two evidences show that at first,
car had started slowly, but it traveled faster and faster. However, if cars
had constant velocity, they would have had same velocities in the table,
and straight line in the graph. The steepness in elevation of slope does
affect how car moves. We did experiments in 10, 15, 20, and 25 height
and they all gave us the same result. Higher the elevation is, higher the
velocity would be in the table. This result matches up with my prediction
precisely. Attaching the mass affected the care moving down the ramp.
The table showed interesting result. It showed that until 15cm elevation,
velocities of massed car were higher, then from 20cm elevation,
velocities of un-massed car have increased. Lab table had shown
inconclusive result that is totally different with my prediction. I think
this result has occurred due to some factors relate to the relationship
between slope and gravity.
Tags: gr8, ict8bertoia