Wednesday, September 11, 2019

The science of a pendulum

In our class we have been doing experiments with pendulums there is two of them. here is mine.
How mass affects the swing of a pendulum
Question:
How long does it take to stop swinging depending on its mass.
Aim/Hypothesis:
We think that objects with more mass will go for longer
Results 
This is how long it took for each of the objects to stop singing.
Bottle 2 mins 59 secs . 63
Microphone   2 mins 48 secs . 98
 Blue pen 2 mins 7 secs.40
Highlighter 2 mins 41 secs.19
Conclusion: It is true objects with more mass do swing for longer.

Here is my second one when we did painting with pendulums.

Aim/Hypothesis: 
Our hypothesis was that it was going to be easy to make a pendulum
painting device. Our aim was to make one.
Results:
First we tried using paint but it didn’t work because it was too watery.
So we tried again but the hole was too small. So the paint was to thick
to fit threw the hole or we are just unlucky. We tried to make a bigger hole
and the paint was still to thick. So we tried flour and it didn't go through the
funnel so we gave up.
Conclusion:
In the end our hypothesis was wrong and we didn’t achieve our aim nothing
worked. Maybe next time we could plan more and come up with a better mix.

1 comment:

  1. I really like how you listed your specific results from your first experiment.
    Don't be disappointed by your second - scientists get used to trying again and again and again, because the nature of science is persistent inquiry. If it doesn't work, why not? What can I change?
    I challenge you to try the pendulum art experiment again and don't give up.

    ReplyDelete

Thank you for your positive, thoughtful, helpful comments.