do you think that this is a good physics experiment?

Question

sending off 3 bottle rockets of varying weights and timing them. any opinion? or ideas?

Answer 1

depends on what grade/collage you are in. how advanced you are. the three rockets are good because there are alot of variables you would have to take into account. good scientific method involved. or you could try to prove that there are gravity fountains (opposite of black holes)

Answer 2

Experiments usually have a specific scientific purpose: to distinguish between two competing theories, to verify a mathematical relationship between two or more quantities, or something of that sort. A good experiment starts with such a concept and its details are designed to reach some kind of conclusion or answer based on the questions to be tested by the experiment. The more variables you allow for or control, the more detailed and general are the conclusions you can reasonably draw from the results of your experiment.

With only three bottle rockets, you won't be able to allow for more than one independent quantitative variable, and even then the experimental error is likely to be rather large. However, if you handle the design of your rockets right, choose your independent and dependent variables carefully, make the relevant measurements, and come to a reasonable conclusion based on the original question and your results, you might succeed in demonstrating your grasp of the scientific method and such an experiment might be successful.