功的计算习题课(精选2篇)
功的计算习题课 篇1
教学题目
教学目的 在上节课的基础知识中,进一步理解物体或外力做功的两个基本因素,并能掌握功的计算。
教学方法 讨论法。
教学内容
引言:上节课主要解决了两个问题。一是做功的两个因素,二是功的计算,今天我们要通过一系列的习题,在理解的基础上,能识别物体是否做功,能掌握解习题的思维方法,以及解物理习题的规范要求。
教师可以事前印好试卷,也可以将问题写在小黑板上,有助于讨论。
先检查上节课学生完成作业 的情况,指出他们完成作业 中的优缺点。
然后再将预先设计的习题进行讨论。
一、填空题
1.物体做範b5牧礁鲆蛩厥莀_____和_______。
2.功计算的基本公式是____________。
3.在国际单位制中功的单位是_____,力的单位是________、距离的单位是_______。
4.用水平推力是200牛的力,将一木箱在水平方向上匀速地椎动了5米,水平推力所做的功是_______。(103焦耳)。
5.用500牛顿的举力,将杠铃匀速地举高,若所做的功为250焦耳,那么举高的高度是__________。(0.5米)
6.把重为200牛的箱子,放在10米高的凉台上,用100牛的水平拉力,匀速地将箱子移至2米的地方,那么,外力对箱子所做的功是__________。(200焦耳)
7.沿着长2米、高0.5米的斜面,将重为103牛的物体,匀速地推到斜面的顶端,那么,人反抗重力所做的功是_________。(500焦耳)
二、是非题:
1.只要有力作用在物体上,这个力就能做功。 ( )
unin5 Advertise 习题课(通用2篇)
unin5 Advertise 习题课 篇1
(整个练习紧扣课文内容及知识点,建议教师选用)
I.单项填空: 从A,B,C,D 四个选项中选出可以填入空白处的最佳答案.
1. We have ____ in the local newspaper for new secretary, but we haven’t had any replies yet.
A. advised B. advertised C. announced D. noticed (Key:B)
2.---- Wokers in this company are not doing their duties.
---- Advanced ways of management must be____ to make things better.
A. brought down B. brought in
C. brought on D. brought up (Key:B)
3. I don’t wait to buy the coat. For ______ thing I don’t like the colour, and for ______, the price is too___.
A. one; another; high B. a; the other; expensive
C. one; another; expensive D. one; other; low
(Key:A)
4.---- She is very tired.
---- So she is. She ___ letters all day.
A. is typing B. was typing
C. has typed D. has been typing (Key:D)
5. They suggested that the doctor ____ be sent for at once.
A. referred to B. referred
C. refer to D. referring to (Key:A)
6.----Are there any English storybooks for us students in the library?
----There are only a few _____
A. if some B. if any C. if many . D. if ever (Key:B)
7. Once you have made a promise, you must ____.
Unit2习题课讲解3通案(通用2篇)
Unit2习题课讲解3通案 篇1
制作人:北大附中河南分校高中部 王萍
学习目标:
1. to improve doing exercise’s skills
2. to classify the comprehension test into differentgroups.
3. to encourage students to set a notebookfor mistakes.
学习难点:
1. the long passage and the fear of reading them.
2. the drills of language comprehension may frustrate thestudents.
3. the grammar in the error-correcting.
预见性问题:
students skill of doing exercises should be improved.
教学方法:
students’ study indenpently combine with explanation byteacher
教学过程:
step1.greeting and leading-in (1’)
greet everyone as usual
step2. free-topic (2’)
step3. discussion and explanation (小组合作10分钟)
学生讨论,公布习题答案,统一后组内解决个别学生的疑问。
并归纳组内存在的无法解决的难题。
课前拓展:
this is the room in which/ where lu xun oncelived
高一Unit3单元能力测试---习题课教案(精选2篇)
高一Unit3单元能力测试---习题课教案 篇1
北大附中河南分校高中英语 王萍
时间: XX年_10_月_7日 星期三 总第4课时
学习目标:
1. to improve doing exercise’s skills
2. to classify the comprehension test into differentgroups.
3. to encourage students to set a notebookfor mistakes.
学习难点:
1. the long passage and the fear of reading them.
2. the drills of language comprehension may frustrate thestudents.
3. the grammar in the error-correcting.
预见性问题:
students skill of doing exercises should be improved.
教学方法:
students’ study indenpently combine with explanation byteacher
教学过程:
step1.greeting and leading-in (1’)
greet everyone as usual
step2. free-topic (2’)
step3. discussion and explanation (小组合作10分钟)
学生讨论,公布习题答案,统一后组内解决个别学生的疑问。
并归纳组内存在的无法解决的难题。
课前拓展:
Unit3 using language习题课教案
课题: unit3 using language习题课教案
时间: XX年_10月_6_日 星期二 第3课时
学习目标:
1. to improve reading skills
2. to classify the comprehension test into different groups.
3. to encourage students to set a notebook for mistakes.
学习难点:
1. the long passage and the fear of reading them.
2. the drills of language comprehension may frustrate the students.
3. the grammar in the error-correcting.
预见性问题:
students skill of doing exercises should be improved.
教学方法:
discussing in groups , students’ explaination
教学过程:
step1.greeting and leading-in (1’)
greet everyone as usual
step2. free-topic (2’)
step3. review (5’)
review the language points about unit 3
reading aloud about 《名师一号》p52 自学探究的知识点
连接高考题:
1 after we hear the______ news, both of us_______
a encouraging; were encouraging b encouraging; were encouraged
Unit2习题课讲解3(总第22课时)通案
制作人:北大附中河南分校高中部 王萍
学习目标:
1. to improve doing exercise’s skills
2. to classify the comprehension test into differentgroups.
3. to encourage students to set a notebookfor mistakes.
学习难点:
1. the long passage and the fear of reading them.
2. the drills of language comprehension may frustrate thestudents.
3. the grammar in the error-correcting.
预见性问题:
students skill of doing exercises should be improved.
教学方法:
students’ study indenpently combine with explanation byteacher
教学过程:
step1.greeting and leading-in (1’)
greet everyone as usual
step2. free-topic (2’)
step3. discussion and explanation (小组合作10分钟)
学生讨论,公布习题答案,统一后组内解决个别学生的疑问。
并归纳组内存在的无法解决的难题。
课前拓展:
this is the room in which/ where lu xun oncelived
the reason why/ for which he refused theinvitation is not clear