Newtons 3rd Law
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Science Concept & Application
I am doing a demonstration of propulsion and thrust involving balloon-powered cars. I started first with the control out of necessity because I didn't have the correct thing to use for spokes so I just used extra straws. The control car and the normal car were built out of mostly the same things and went together relatively well, I used an index card some straws some bottle caps some tape, and a balloon. It worked pretty well considering it was entirely improvised by me, who is not very inventive. The control car traveled in a wide ark rather than just not working at all as I had hypothesized. Its lack of viability is likely due to Human error on my part. The control car was an accident because i could not get the correct materials for it but it actualy worked out for my benefit. If I hadnt forgotten to get spokes I would have alot less to say and would not have a control for my experiment. I do regret not making extera controles for my car this is one thing i would do if i were to do the experiment over again. The way the controle worked as opposed to the normal car was interesting as It impeded the cars ability to move forward. The reason the control car did not work so well I found out was the tape i used to put the straws together caused the straws to not be able to move very well. The normal car as i have stated befor worked perfectly moving a good distance befor stoping although i would alter the materials i used in its construction if i could I would use glue unstead of tape as I believe the evtera weight slowed it down reducing the distance it could move. I had expected human error to come into play in the execution of the normal control however it did not and the cars movement was unimpeded. The normal car was created with the same materials as the controle car but in my opinion was not as interesting to create and took much less effort. This demonstration works by demonstrating newtons third law that every action must have an equal and positive reaction. The car is propelled forward by air being expelled throught the straw from the preiviosly inflated balloon pushing agains the surrounding air and moving the car forward for as long as the balloon still has air.
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Career
The main Job of an aeronautical engineer is to Create aircraft that navigate Earth's atmosphere.
Another job they have is assessing the viability of design ideas using software to test flight scenarios. They also use certain software to coordinate the manufacturing process of aircraft. It is also their job to investigate factors that cause crashes and malfunctions. They also write manufacturing manuals for aircraft. They also create emergency response procedures based on their designs. Aeronautical Engineers make around 103,595 dollars per year. You will need a bachelor's degree in engineering if you want to become an aeronautical engineer. It can take 9 to 10 years to complete your training to become an aeronautical engineer. You will also need strong mathematical, problem-solving and analytical skills. Scientist
Robert Goddard was born on October 5th, 1882 in Worcester, Massachusetts. He was an inventor and a theorist who is generally credited with creating the first liquid-powered rocket. His rocket was successfully launched on March 16 1926. He also improved the solid fuel rockets which ushered in the era of modern rockets. He Launched 34 rockets between the years of 1926 and 1941. His rockets reached up to 1.6 miles high and reached speeds of up to 550 MPH. Robert Goddard is called the man who ushered in the space age. His famous quote is “ It is difficult to say what is impossible, for the dream of yesterday is the hope of today and the reality of tomorrow.” He died on August 10th, 1945 in Baltimore, Maryland.
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Essay
My demonstration is a balloon-powered car that demonstrates propulsion and thrust.
These are key factors in the science of aeronautics and the focus of my project. I
hypothesize that the car will work well and propel itself a moderate distance, which I
believe will be around five feet. I also believe that it will continue to work after the first
test. I also intend on doing a control test in which I use an alternate type of item for
spokes. I think this will affect the ability of the balloon to propel itself forward and thus
cause it to go a lesser distance than it could have otherwise covered. There is of course
a chance for human error as there is in all demonstrations and experiments. I expect
human error to be at least a small factor as I have never been very good at making
things of this kind. Other than the difference in spokes I will keep the two
demonstrations as similar as possible for the sake of simplicity. Construction of the
Ballon-powered cars are simple and require only a few different materials to make. To
make balloon-powered cars you will need a ballon which is used for the engine, a
4x6 index card to use for the body although a piece of cardboard of the same length
could serve the same purpose four plastic bottle caps of any size for each car where
they come from does not matter. You will also need paper straws to use for the axles any
type will do for this demonstration. You will need wooden skewers to use for the spokes
of one of the cars the spokes need to be longer than the straws and need to be able to
Peirce the bottle caps. The tape will also be required for putting everything together however
you could also use glue to secure the balloon and straw to the paper. Creating the
cars take six steps and are extremely simple. Step one is to cut down the straws to
the size of the short side of the index card or piece of cardboard you are using. Step
number two is to tape or glue the cut straws to the index card or cardboard. Step three
is to cut two skewers to a slightly longer length than the straws or for the control to cut
two straws and squish the sides together and tape two together to create spokes insert
either of these into the straws. Step four is to place a bottle cap onto a skewer or a cut
straw. Step five will have you take a straw and place a balloon over it make sure to use
as much tape as you need to secure the balloon and the straw and make sure that no
air can escape the balloon. I would recommend testing the straw and balloon before the
next step by blowing into it and making sure that no air escapes if it does use more tape
to secure the balloon. Step six is to tape the straw and balloon to the index card or
piece of cardboard make sure the straw and balloon are facing the back of the index
card or piece of cardboard. To perform the experiment simply place the newly made car
on the ground or other surface and blow into the straw to inflate the balloon and let go
and watch it go. My demonstration was performed exactly like this except I did the
control test first out of necessity as I did not have the skewers to use as spokes for the
balloon cars. I used some extra straws instead I cut them in half and taped them
together end on end and placed them into the other straws used as axles. Other than
that the cars were constructed the same however the balloon-powered car with the
skewers for spokes worked much better as they fit better in the axles and the bottle
caps fit onto them better. I constructed the control car and set it down on the floor I blew
into the straw of the balloon-powered car and inflated the balloon and let it go. The
control car did not work very well and only moved forward a little bit and spun although I
suspected this could be a human error as I had mentioned earlier as I probably could
have cut the straws into a neater form and I if I were to do it again i would use glue
of tape to place the two straws together in each axle because I believe that the tape
slowed down the movement of the wheels. The second balloon-powered car
demonstration was constructed regularly and worked out much better than the control
car. I once again blew into the straw inflating the balloon set the car down on the ground
and let it go. The balloon-powered car traveled a pretty good distance and actually
moved forward instead of just in a wide ark like the control car did. The balloon-powered
car moved about ten feet across the floor before finally coming to a stop. Both cars
surpassed my expectations as for the control car I did not expect it to work at all and for
the normal car, I didn't expect it to work as well as it did. If I had to do something
different with the demonstration I would find a way to add more controls. As for the
science of this car, it exhibits Newton's third law that there must be an equal and
opposite reaction for the car to be propelled through the air. Propulsion systems rely
heavily on propulsion and thrust systems. As an action and reaction are needed to
propel the car forward. The action is me blowing into the straw and the air releases
once I set the car down and unplug the straw due to potential energy being converted to
kinetic energy propelling the car forward.
These are key factors in the science of aeronautics and the focus of my project. I
hypothesize that the car will work well and propel itself a moderate distance, which I
believe will be around five feet. I also believe that it will continue to work after the first
test. I also intend on doing a control test in which I use an alternate type of item for
spokes. I think this will affect the ability of the balloon to propel itself forward and thus
cause it to go a lesser distance than it could have otherwise covered. There is of course
a chance for human error as there is in all demonstrations and experiments. I expect
human error to be at least a small factor as I have never been very good at making
things of this kind. Other than the difference in spokes I will keep the two
demonstrations as similar as possible for the sake of simplicity. Construction of the
Ballon-powered cars are simple and require only a few different materials to make. To
make balloon-powered cars you will need a ballon which is used for the engine, a
4x6 index card to use for the body although a piece of cardboard of the same length
could serve the same purpose four plastic bottle caps of any size for each car where
they come from does not matter. You will also need paper straws to use for the axles any
type will do for this demonstration. You will need wooden skewers to use for the spokes
of one of the cars the spokes need to be longer than the straws and need to be able to
Peirce the bottle caps. The tape will also be required for putting everything together however
you could also use glue to secure the balloon and straw to the paper. Creating the
cars take six steps and are extremely simple. Step one is to cut down the straws to
the size of the short side of the index card or piece of cardboard you are using. Step
number two is to tape or glue the cut straws to the index card or cardboard. Step three
is to cut two skewers to a slightly longer length than the straws or for the control to cut
two straws and squish the sides together and tape two together to create spokes insert
either of these into the straws. Step four is to place a bottle cap onto a skewer or a cut
straw. Step five will have you take a straw and place a balloon over it make sure to use
as much tape as you need to secure the balloon and the straw and make sure that no
air can escape the balloon. I would recommend testing the straw and balloon before the
next step by blowing into it and making sure that no air escapes if it does use more tape
to secure the balloon. Step six is to tape the straw and balloon to the index card or
piece of cardboard make sure the straw and balloon are facing the back of the index
card or piece of cardboard. To perform the experiment simply place the newly made car
on the ground or other surface and blow into the straw to inflate the balloon and let go
and watch it go. My demonstration was performed exactly like this except I did the
control test first out of necessity as I did not have the skewers to use as spokes for the
balloon cars. I used some extra straws instead I cut them in half and taped them
together end on end and placed them into the other straws used as axles. Other than
that the cars were constructed the same however the balloon-powered car with the
skewers for spokes worked much better as they fit better in the axles and the bottle
caps fit onto them better. I constructed the control car and set it down on the floor I blew
into the straw of the balloon-powered car and inflated the balloon and let it go. The
control car did not work very well and only moved forward a little bit and spun although I
suspected this could be a human error as I had mentioned earlier as I probably could
have cut the straws into a neater form and I if I were to do it again i would use glue
of tape to place the two straws together in each axle because I believe that the tape
slowed down the movement of the wheels. The second balloon-powered car
demonstration was constructed regularly and worked out much better than the control
car. I once again blew into the straw inflating the balloon set the car down on the ground
and let it go. The balloon-powered car traveled a pretty good distance and actually
moved forward instead of just in a wide ark like the control car did. The balloon-powered
car moved about ten feet across the floor before finally coming to a stop. Both cars
surpassed my expectations as for the control car I did not expect it to work at all and for
the normal car, I didn't expect it to work as well as it did. If I had to do something
different with the demonstration I would find a way to add more controls. As for the
science of this car, it exhibits Newton's third law that there must be an equal and
opposite reaction for the car to be propelled through the air. Propulsion systems rely
heavily on propulsion and thrust systems. As an action and reaction are needed to
propel the car forward. The action is me blowing into the straw and the air releases
once I set the car down and unplug the straw due to potential energy being converted to
kinetic energy propelling the car forward.
