what does the neck of the balloon, tied at the end of one of the staws represent
Answers
Answer:
Rocketry has existed for hundreds of years. Although the technology has greatly improved and there are numerous methods for propelling a rocket, the simple science behind rockets has always been the same. To propel a rocket, some kind of force must push it forward. A force is the amount of push or pull on an object. The mechanical force that pushes a rocket or aircraft through the air is known as thrust. In this experiment, you’ll make a balloon rocket that is propelled by pressure. Pressure is the amount of force exerted on an area.
Explanation:
Answer:
Tie one end of a string to a chair, doorknob, or other support.
Put the other end of the string through a straw. Then pull the string tight, and tie it to another support in the room.
Blow up the balloon, and pinch the end of the balloon to keep the air inside. Do not tie the balloon.
Tape the balloon to the straw so that the opening of the balloon is horizontal with the ground.
You may need two students for this: one to keep the air pinched inside the balloon and the other to tape the balloon to the straw.
While holding the balloon opening closed, one student should pull the balloon all the way back to the end of the string (the starting line) so that the balloon opening is against one support. Have another student use the marker to draw a finish line near the other end of the string.
Let go of the balloon and watch it move along the string.
Then, have students test different methods to transport “cargo” across the string to the finish line.