Understanding Free Fall & Gravity Using an Incline Plane.
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Transcript of Understanding Free Fall & Gravity Using an Incline Plane.
Understanding Free Fall & Gravity Using an Incline Plane
“All objects move towards their natural
place”
Objects fall down because the center of the Earth is their natural place.
The speed of an object in free fall is proportional to its mass.
Objects fall faster through mediums that are less dense.
He had no equipment to conduct any research or experiments.
He had no way of knowing about air resistance.
He was not aware of the effects of friction. He was a philosopher not a scientist.
“I do not feel obliged tobelieve that the samegod who has endowed uswith sense, reason andintellect has intended usto forgo their use.”
All objects fall with the same rate of acceleration
Mass does not effect the rate of acceleration
An objects velocity will increase the farther it falls
Goal = determine the value of “g” Many people feel he conducted
experiments by dropping objects off the “Tower of Pisa”.
Too difficult to get accurate results with equipment available
Used an incline plane to study free fall (objects move slower, easier to control)
Galileo Video
Derived equation: Δd = vit + ½at2
Found that objects speed up at a faster rate when the angle of incline increases
Diameter effects rate of acceleration (bigger diameter=less friction, velocity increases)
All objects fall with the same rate of acceleration For falling objects:
V ∝ T D ∝ T2
Concluded: All objects fall with the same rate of acceleration regardless of mass when you neglect air resistance.
Resulting Graph of Distance vs. Time
Resulting Graph of Distance vs. Time2
Resulting Graph of Velocity vs. Time (mid)