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Hello, my name's Andy and I'm 17 years old.
My experiment is about pendulum action.
Come, let me show you.
The pendulum action
is the phenomenon in which a weight is suspended
by a massless rod
and swinged
periodically.
So now I want to find out:
Does microgravity
change the period of a pendulum?
So as we know,
the acceleration due to gravity
or "G"
and acceleration due to centripetal force
on the ISS
are roughly the same.
As a result,
the apparent
acceleration due to gravity on ISS
is very close to 0.
Based on that,
here is the formula
of the period of a pendulum.
L represents
the length of the pendulum.
"G" represents
the acceleration due to gravity.
So on Earth, "G" is equal to 9.8 meters per second squared.
On the ISS it's gonna be very close to 0.
So my hypothesis is that
the period of the pendulum on
the ISS
is gonna be longer than on the Earth
Here's my method of the experiment.
And this is my pendulum and I'll pull it
parallel to the ground and release it.
Also I will have a stopwatch to measure the period
to compare the
period of the pendulum on ISS
to
the period of the pendulum on the Earth.
The most important part is that
the pivot here has to be lubricated
so that
the force of friction here will be
decreased to near 0.
So,that's pretty much
my idea about the experiment on YouTube Spacelab. Thank you!