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(2012·绍兴中考)为了探究运动和力的关系,进行了如下实验:在水平放置的木板上铺上粗糙程度不同的毛巾、棉布,让同一辆小车由同一斜面上,分别从A、B、C处由静止开始滑下,观察小车在不同水平面上运动的距离,记录在表中,实验重复三次。 (1)实验中,要使小车在水平面上开始运动时的速度相同,小车应从斜面的_____________处滑下。 (2)比较实验数据发现,小车运动状态改变最慢的是在______表面上。 (3)实验结果能证明________(选填字母序号)。 A.物体运动需要力 B.力可以改变物体的运动状态 C.牛顿第一定律
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参考答案：
举一反三
【单选题】下列关于温标的说法正确的为:
A.
热力学温标和理想气体温标没有本质差别
B.
热力学温度为0 K时，对应的摄氏温度为273.16 ℃
C.
摄氏温度为100 ℃，对应的华氏温度为 132 。F
D.
室温为25 ℃，转化为热力学温度为298.16 K
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【多选题】Read the Text A (Para. 9-10) again, and complete the note-taking exercise. Five key questions (Para. 9): 1. Is the institution ? 2. Does the institution have both an online and traditional brick-and-m...
A.
accredited
B.
sufficient student
C.
qualifications
D.
Specially tailored courses
E.
student's success
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【简答题】Complete the sentences with the correct form of the words in the box. affirm agony glimpse institution lean pace peer poison rub scratch 1 I forwards so that I ...
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【单选题】This philosopher and student of Socrates founded the Academy in Athens, the first institution of higher learning in the Western world.
A.
Aristotle
B.
Homer
C.
Plato
D.
Pythagoras
E.
Socrates
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【单选题】Identify who the following descriptions is referring to. P 14-22 This philosopher and student of Socrates founded the Academy in Athens, the first institution of higher learning in the Western world.
A.
Aristotle
B.
Homer
C.
Plato
D.
Pythagoras
E.
Socrates
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【多选题】关于热力学温标和摄氏温标，下列说法正确的是（ ）
A.
热力学温标中每1K与摄氏温标中每1度大小相等
B.
热力学温标中升高1K大于摄氏温度升高1度
C.
热力学温标中升高1K等于摄氏温度升高1度
D.
某物体摄氏温度10度，即热力学温度10K
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【简答题】无三阶互调干扰信道级的选择方法有( )法、( )法和( )法。
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【单选题】What are the types of institution banks used to conduct foreign business?
A.
corporations
B.
central banks
C.
commercial banks
D.
agency offices, subsidiary banks, and foreign branches
E.
state-owned enterprises
查看完整题目与答案
【多选题】关于温标,下列说法正确的是
A.
理想气体温标与测温物质的性质无关
B.
ITS90 温标是理论温标
C.
卡诺热机是理想气体温标的测温仪器
D.
固定点、测温仪器和内插公式是温标三要素
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【单选题】The decade of the 1960s was characterized by the ever-growing suspicion of the civilized world's attempt to control nature through the use of technology.
A.
Y
B.
N
C.
NG
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相关题目：
【单选题】下列关于温标的说法正确的为:
A.
热力学温标和理想气体温标没有本质差别
B.
热力学温度为0 K时，对应的摄氏温度为273.16 ℃
C.
摄氏温度为100 ℃，对应的华氏温度为 132 。F
D.
室温为25 ℃，转化为热力学温度为298.16 K
查看完整题目与答案
【多选题】Read the Text A (Para. 9-10) again, and complete the note-taking exercise. Five key questions (Para. 9): 1. Is the institution ? 2. Does the institution have both an online and traditional brick-and-m...
A.
accredited
B.
sufficient student
C.
qualifications
D.
Specially tailored courses
E.
student's success
查看完整题目与答案
【简答题】Complete the sentences with the correct form of the words in the box. affirm agony glimpse institution lean pace peer poison rub scratch 1 I forwards so that I ...
查看完整题目与答案
【单选题】This philosopher and student of Socrates founded the Academy in Athens, the first institution of higher learning in the Western world.
A.
Aristotle
B.
Homer
C.
Plato
D.
Pythagoras
E.
Socrates
查看完整题目与答案
【单选题】Identify who the following descriptions is referring to. P 14-22 This philosopher and student of Socrates founded the Academy in Athens, the first institution of higher learning in the Western world.
A.
Aristotle
B.
Homer
C.
Plato
D.
Pythagoras
E.
Socrates
查看完整题目与答案
【多选题】关于热力学温标和摄氏温标，下列说法正确的是（ ）
A.
热力学温标中每1K与摄氏温标中每1度大小相等
B.
热力学温标中升高1K大于摄氏温度升高1度
C.
热力学温标中升高1K等于摄氏温度升高1度
D.
某物体摄氏温度10度，即热力学温度10K
查看完整题目与答案
【简答题】无三阶互调干扰信道级的选择方法有( )法、( )法和( )法。
查看完整题目与答案
【单选题】What are the types of institution banks used to conduct foreign business?
A.
corporations
B.
central banks
C.
commercial banks
D.
agency offices, subsidiary banks, and foreign branches
E.
state-owned enterprises
查看完整题目与答案
【多选题】关于温标,下列说法正确的是
A.
理想气体温标与测温物质的性质无关
B.
ITS90 温标是理论温标
C.
卡诺热机是理想气体温标的测温仪器
D.
固定点、测温仪器和内插公式是温标三要素
查看完整题目与答案
【单选题】The decade of the 1960s was characterized by the ever-growing suspicion of the civilized world's attempt to control nature through the use of technology.
A.
Y
B.
N
C.
NG
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