Science: Ramps and Spheres

  Ramps and Spheres

                            By Jean

    In science we are testing force and motion.  We just finished testing pendulums so now we are testing spheres and ramps.  The materials you have are three different size spears. One dig spear, one little spear and, one big spear.  We also had a ramp and a runway. We tapped the ramp and the runway together at the bottom.  We also made sure that the runway was not over any bumps or cracks so it would not mess up our experiment.  We had a graph that had spaces for the three trials and the average.  We had two of those graphs, one for the medium ball at the two mark the four mark and at the size mark.  The second graph was for the big ball the medium ball and the small ball and they all started at the three mark.  

    The marks are on the ramp so we know where to let the ball go but when we do that we can not put pressure on the spear.  We have a measuring tape next to the runway so we can track how long the ball goes in two seconds.  But sometimes it can be really hard to do all this stuff because there might be some dents in the runway or your ball might stop allof a sudden (which happened to me) or you could just have a human airor.

    So now that you have an idea do you, think you would want to do this experiment?

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