The prompt for this one is: In designing and performing a projectile motion lab, I have learned . . .
Example
1
In
designing and performinga projectile motion lab, I have learned what does
not constitute a projectile. A rolling object, as my group led me
to believe, is not a projectile. A projectile must have only the
force of gravity working on it after an initial force has acted on it,
which will cause it to move towards the center of the Earth. A rolling
object is not a projectile because it has the force of gravity working
on it after an initial force; however, it also has the force of the normal
working on it and does not move towards the center of the Earth.
I alos learned how to use a Photogate from this projectile lab, which could
prove useful for application in other lab activities.
Example
2
In
designing and performing a projectile motion lab, I have learned a lot
about what exactly projectile motion is and what it takes to design an
experiment.
I learned that projectile motion is motion that occurs as a result of gravity,
and only gravity, acting on an object after an initial velocity or boost
has occurred. I learned that creating an experiment to prove or to
understand projectile motion is extremely difficult. It is difficult
only because the equipment we had to use was not bery accurate and that
made it difficult to get correct results even when the experiment was done
well.
Not only was designing a projectile motion lab difficult, but I know from
other classes that designing experiments in general is difficult.
Designing experiments is costly because of the materials that must be used
and is also time consuming because the process comes with much trial and
error to even find an experimental method that works.
Example
3
In designing and performing a projectile motion lab, I have learned that
designing experiments is really hard. You have to really udnerstand
what you are trying to accomplish, instead of just going through the steps
mechanically. When designing an experiment, chances are you're not
going to get it right on the first try, so trying other methods, or listening
to others for new ideas helps a lot.
Example
4
In
designing and performing a projectile motion lab,I have learned that creating
a lab is very difficult. It is easy to make mistakes in measurement
or in designing the lab. The creator needs to know what type of values
that they need to find out what they are looking for. Precise measuring
devices are hard to use correctly with objects that are moving. There
will be human error and device error if the device is not placed correctly
or angled correctly. Projectile motion is easy to simulate but not
easy when trying to convert this simulation into numbers. The representation
of projectile motion in data form is the difficult part.
Example
5
In
doing the lab,I found out many things about projectile motion. The
main thing is that it is hard to get good data, and have only one force
acting on an object. The best way I found to show projectile motion
was to do it the way I did. Throw an object upward and have a motion
detector, placed at the bottom, graphing data. I fully understand
now what the definition of a projectile is now, which was very helpful
in deciding what to do in my lab. I know that the lab I did was not
perfect, but I believe it is an easy way to show and prove projectile motion.
I must always keep air resistance in mind when deciding an object to use,
because if I use an object that is light then I am more testing air resistance
than gravity. In all I thought my lab approach was good, and that
I proved projectile motion, and doing it by myself, instead of having you
tell me what to do made me think in different ways.