Physics Lab question velocity/Δt simple

AI Thread Summary
In the physics lab, the student is analyzing the decreasing Δt values recorded as an object falls through a photogate. The Δt represents the time the photogate is open as each band on the object passes through. As the object accelerates due to gravity, its velocity increases, resulting in shorter Δt values. This relationship indicates that the faster the object moves, the less time it takes for each band to pass the sensor. The explanation is confirmed to be correct, emphasizing the connection between increasing velocity and decreasing Δt.
munchy35
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Homework Statement



Hi all. I did a lab in physics and am struggling with a question. The lab involved dropping an object that had clear and black bands on it through a photogate to determine velocity and time.

The question I'm struggling with is...

Looking at the RAW DATA, you should notice that the Δt values are getting smaller as the falling proceeds. Why is this?

Homework Equations



There aren't really equations. It's just a question, but attempted answer below.


The Attempt at a Solution



I'm just confused on what this means. I'm pretty sure Δt is the time for which the photgate was open - between the bands on the falling object. Is the answer simply that the Δt becomes smaller, because as the object falls the velocity is increasing - so the time that the photogate was open will become shorter.

Is this right? If it is, can someone help me use clearer wording. Thanks!
 
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munchy35 said:
I'm just confused on what this means. I'm pretty sure Δt is the time for which the photgate was open - between the bands on the falling object. Is the answer simply that the Δt becomes smaller, because as the object falls the velocity is increasing - so the time that the photogate was open will become shorter.

Is this right? If it is, can someone help me use clearer wording. Thanks!

Yes. As the object speeds up, the time for a band to pass the photogate becomes shorter.
 
munchy35 said:


The Attempt at a Solution



I'm just confused on what this means. I'm pretty sure Δt is the time for which the photgate was open - between the bands on the falling object. Is the answer simply that the Δt becomes smaller, because as the object falls the velocity is increasing - so the time that the photogate was open will become shorter.

Is this right? If it is, can someone help me use clearer wording. Thanks!


Looks good to me..
 
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