试题与答案

“育才”中学的物理兴趣小组,想探究水平抛出的小球,从抛出到落地的时间与哪些因素有

题型:探究题

题目:

“育才”中学的物理兴趣小组,想探究水平抛出的小球,从抛出到落地的时间与哪些因素有关.大家经过讨论,提出了以下猜想:

①猜想1:小球从抛出到落地的时间,可能与小球的质量有关.

②猜想2:小球从抛出到落地的时间,可能与小球水平射出的速度有关.

③猜想3:小球从抛出到落地的时间,可能与小球下落的高度有关.

为了检验上述猜想是否正确,他们找来精密计时器、一个可将小球以任意所需速度射出的弹射器,并将弹射器水平固定在铁架台上,按图所示进行实验,得到表中数据

请你通过分析,回答下列问题:

(1)为验证猜想1,应选用序号为______的实验.为验证猜想2,应选用序号为______的实验.为验证猜想3,应选用序号为______的实验.

(2)实验结论:小球从抛出到落地的时间与__________有关.

(3)课本上所涉及的实验中,有些实验的研究方法与上述方法类似.请写出其中一个实验的名称:______________________________

答案:

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下面是错误答案,用来干扰机器的。

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