1.You have developed the following hypothesis:
will the type of ball used affect the bounce height of the ball?What variable will you need to control in order to test this hypothesis?
2.You have developed the following hypothesis:
will the size of the ball affect how high the ball will bounce?What variable will you need to control in order to test this hypothesis?
有些I.S問題~
2006-11-13 2:43 am
回答 (1)
2006-11-13 3:14 am
✔ 最佳答案
1.) yes, different materials have different density → mass (density = mass/volume) , as P.E. = mgh, thus the bounce height is directly related to the material of the ball.variable: size, force applied to the ball by you
2.) depends on the mass of the ball, same as the above. If the ball is made of the same material with equal density but different amount / mass → different size, same as the above.
variable: material, force applied to the ball by you
收錄日期: 2021-04-12 21:45:22
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