Forces- balloon rockets We can generate thrust to propel a balloon rocket along a string. |
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You will need: - a long balloon - 2 pieces of A4 paper - cotton string or nylon string (fishing line) - scissors - sticky tape - paper straw |
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Step 1 - Make a long cylinder using one of the A4 pieces of paper. Tape the ends of the paper together to secure the cylindrical shape. |
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Step 2 - With the other piece of paper make a cone and use tape once more to secure the edges of the paper. |
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Step 3 - Secdure the cone to the cylinder. You may wish to reinforce the back of the rocket with an extra layer of tape. | |
Step 4 - Cut the straw in half and tape it to the cylinder. Then thread the string through the straw. |
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Step 5 - Measure a 5m length of string and secure it approximately 1.5 metres off the ground. |
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Step 6 Place the balloon inside the rocket and inflate it . |
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Inflate the balloon with as many breaths as needed and release. Measure the length it travels along the string. |
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Investigate one of the questions below or select one of your own. |
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Record your results on this document or use it to help you record the results. |