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题目列表(包括答案和解析)

(1)只要认真测量,按步骤进行操作,就可避免误差.
×
×

(2)施力物体同时也是受力物体.

(3)重力总是垂直于接触面作用的.
×
×

(4)光的反射只有当光射到两种不同物质的分界面上时才能发生.

(5)任何反射镜都能成像.

(6)凸镜和凹镜都可以使反射光会聚.
×
×

(7)在空中飞行的子弹受到向前的推力作用.
×
×

(8)同一物体在任何地区的重力都是不变的.
×
×

(9)只要两个力的大小相等,方向相反,同时作用在一条直线上就是平衡力.
×
×

(10)体积相等的实心球体,密度大的质量一定大.

(11)在匀速直线运动中,通过的路程长的物体,运动的速度一定大.
×
×

(12)力是改变物体运动状态的原因,同时也是维持物体运动的原因.
×
×

(13)物体放出热量,温度一定下降.
×
×

(14)物体只有在温度升高时,才从外界吸收热量.
×
×

(15)在物态变化过程中,必须存在物体间的热传递.
×
×

(16)在物体的放热过程中,温度一定下降.
×
×

(17)把酒精涂在皮肤上,感到凉,是由于酒精的蒸发造成的.

(18)凸面镜所成的像是虚像,它可以增大视角.
×
×

(19)平面镜中可以看到像,它一定是由光线会聚产生的.
×
×

(20)摩擦力总是阻力.
×
×

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(1)只要认真测量,按步骤进行操作,就可避免误差.______.
(2)施力物体同时也是受力物体.______.
(3)重力总是垂直于接触面作用的.______.
(4)光的反射只有当光射到两种不同物质的分界面上时才能发生.______.
(5)任何反射镜都能成像.______.
(6)凸镜和凹镜都可以使反射光会聚.______.
(7)在空中飞行的子弹受到向前的推力作用.______.
(8)同一物体在任何地区的重力都是不变的.______.
(9)只要两个力的大小相等,方向相反,同时作用在一条直线上就是平衡力.______.
(10)体积相等的实心球体,密度大的质量一定大.______.
(11)在匀速直线运动中,通过的路程长的物体,运动的速度一定大.______.
(12)力是改变物体运动状态的原因,同时也是维持物体运动的原因.______.
(13)物体放出热量,温度一定下降.______.
(14)物体只有在温度升高时,才从外界吸收热量.______.
(15)在物态变化过程中,必须存在物体间的热传递.______.
(16)在物体的放热过程中,温度一定下降.______.
(17)把酒精涂在皮肤上,感到凉,是由于酒精的蒸发造成的.______.
(18)凸面镜所成的像是虚像,它可以增大视角.______.
(19)平面镜中可以看到像,它一定是由光线会聚产生的.______.
(20)摩擦力总是阻力.______.

查看答案和解析>>

(1)只要认真测量,按步骤进行操作,就可避免误差.______.
(2)施力物体同时也是受力物体.______.
(3)重力总是垂直于接触面作用的.______.
(4)光的反射只有当光射到两种不同物质的分界面上时才能发生.______.
(5)任何反射镜都能成像.______.
(6)凸镜和凹镜都可以使反射光会聚.______.
(7)在空中飞行的子弹受到向前的推力作用.______.
(8)同一物体在任何地区的重力都是不变的.______.
(9)只要两个力的大小相等,方向相反,同时作用在一条直线上就是平衡力.______.
(10)体积相等的实心球体,密度大的质量一定大.______.
(11)在匀速直线运动中,通过的路程长的物体,运动的速度一定大.______.
(12)力是改变物体运动状态的原因,同时也是维持物体运动的原因.______.
(13)物体放出热量,温度一定下降.______.
(14)物体只有在温度升高时,才从外界吸收热量.______.
(15)在物态变化过程中,必须存在物体间的热传递.______.
(16)在物体的放热过程中,温度一定下降.______.
(17)把酒精涂在皮肤上,感到凉,是由于酒精的蒸发造成的.______.
(18)凸面镜所成的像是虚像,它可以增大视角.______.
(19)平面镜中可以看到像,它一定是由光线会聚产生的.______.
(20)摩擦力总是阻力.______.

查看答案和解析>>

单词拼写(共15小题;每小题1分,满分15分)
根据下列句子及所给汉字注释或首字母提示,在句子后边的横线上,写出空缺处各单词的正确形式。(每空只写一词)
【小题1】We should not judge a person by his __________ 外表).      
【小题2】How did the people __________ (反应)to the latest news?     
【小题3】Schools need __________(志愿者)to help children to read.       
【小题4】It was said that the little child had been __________(咬)by the fierce dog.          
【小题5】Police asked __________(过路人)if they had seen the accident.  
【小题6】I like to read books on __________(电子的)music.         
【小题7】We may __________(自信地)look forward to the future.      
【小题8】 Lesinko is quite f_________ with China Central Television. He worked there for 25 years.                                                                 
【小题9】 I don’t like b__________ with the sellers over the price of the goods.    
【小题10】The scientist encourages the young to e__________ unknown fields.
【小题11】The hotel bill c__________ every fee, including the broken glass.
【小题12】The doctor p__________ the operation successfully.           
【小题13】It is a__________ to the weather forecast that we know there will be a heavy snow in 3 days.                                                        
【小题14】Both the Winter and the Summer Olympics are held every four years on a r__________ basis.                                                 【小题15】To be honest, some parents don’t a__________ great importance to their children’s character training.                                            

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单词拼写(共15小题;每小题1分,满分15分)
根据下列句子及所给汉字注释或首字母提示,在句子后边的横线上,写出空缺处各单词的正确形式。(每空只写一词)
【小题1】We should not judge a person by his __________ 外表).      
【小题2】How did the people __________ (反应)to the latest news?     
【小题3】Schools need __________(志愿者)to help children to read.       
【小题4】It was said that the little child had been __________(咬)by the fierce dog.          
【小题5】Police asked __________(过路人)if they had seen the accident.  
【小题6】I like to read books on __________(电子的)music.         
【小题7】We may __________(自信地)look forward to the future.      
【小题8】 Lesinko is quite f_________ with China Central Television. He worked there for 25 years.                                                                 
【小题9】 I don’t like b__________ with the sellers over the price of the goods.    
【小题10】The scientist encourages the young to e__________ unknown fields.
【小题11】The hotel bill c__________ every fee, including the broken glass.
【小题12】The doctor p__________ the operation successfully.           
【小题13】It is a__________ to the weather forecast that we know there will be a heavy snow in 3 days.                                                        
【小题14】Both the Winter and the Summer Olympics are held every four years on a r__________ basis.                                                 【小题15】To be honest, some parents don’t a__________ great importance to their children’s character training.                                            

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