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Rocket Balloon

1. The document discusses how balloons and rockets move forward through thrust. As air rushes out of a deflating balloon, it pushes the balloon in the opposite direction according to Newton's third law of motion. Rockets also use thrust - as fuel is burned in the engine and hot gas rushes out the back, it pushes the rocket forward. 2. Different balloon sizes and shapes as well as the angle of the string can change how far or fast the balloon rocket travels due to varying levels of thrust created. Thrust is the pushing force produced by the energy of the deflating balloon or burning rocket fuel.

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Chi Truong
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77 views2 pages

Rocket Balloon

1. The document discusses how balloons and rockets move forward through thrust. As air rushes out of a deflating balloon, it pushes the balloon in the opposite direction according to Newton's third law of motion. Rockets also use thrust - as fuel is burned in the engine and hot gas rushes out the back, it pushes the rocket forward. 2. Different balloon sizes and shapes as well as the angle of the string can change how far or fast the balloon rocket travels due to varying levels of thrust created. Thrust is the pushing force produced by the energy of the deflating balloon or burning rocket fuel.

Uploaded by

Chi Truong
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Name: Date: June

Force is a push or pull on an object.


A push moves it away. A pull moves it close to you.

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Which way will the rocket go?

1. Does the shape of the balloon change how far or YES NO


fast the rocket goes?

2. Does the length of the straw change how far or fast YES NO
the rocket goes?

3. Does the angle of the string change how far or fast YES NO
the rocket goes?
Name: Date: June

When the mouth of the balloon is released the balloon shrinks back to its
original size, pushing air out of the opening. As Newton’s third law of
motion states, “For every action there is an equal and opposite reaction.”
Therefore, as air rushes out of the balloon in one direction, the balloon is
pushed forward in the opposite direction. This is the same principle that
rockets use. When rocket fuel is burned in the engine, hot gas is produced
which rushes out the back of the rocket. This in turn pushes the rocket
forward.

So how does it work? It’s all about the air…and thrust. As the air rushes out
of the balloon, it creates a forward motion called THRUST. Thrust is a push-
ing force created by energy. In the balloon experiment, our thrust comes
from the energy of the balloon forcing the air out. Different sizes and
shapes of balloon will create more or less thrust. In a real rocket, thrust is
created by the force of burning rocket fuel as it blasts from the rockets
engine – as the engines blast down, the rocket goes up!

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