很多同学在碰到GCSE物理考点Momentum的时候都会遇到内容多、知识抽象、难记忆的问题。所以今天我们不用知识点罗列的方式,而是用卡片记忆法教大家来记忆并理解动量中的定义、定理、规律、公式。希望更活泼随意的小卡片形式可以相对减轻大家的心理负担,让学习真的能使你快乐。
GCSE物理考点的特点
GCSE物理考试和国内物理考试主要的区别就是,它检测的知识面非常的广,但是难度并没有很高,其目的主要是为A-Level的物理学习打基础。同时,GCSE的考卷也不会出现国内所谓的超纲的问题,所以学员们面临的问题是记住大量的物理公式和知识点。
GCSE物理考点Momentum
学习卡片
1
Give the quation for momentum, including units
Give the quation for momentum, including units
Momentum (kgm/s) = mass (kg) x velocity (m/s)
2
The time taken for the change in momentum to occur is proportional to the ...
The time taken for the change in momentum to occur is proportional to the ...
Resultant force felt by the object.
(Newton's second law: F=ma, where mass x acceleration is the rate of change of momentum)
3
Give the equation linking resulatant force and momentum
Give the equation linking resulatant force and momentum
change in momentum (kgm/s) = resultant force (N) x time (s)
mv-mu = Ft
Where...
m: mass (kg)
F: force (N)
v: initial velocity (m/s)
u: final velocity (m/s)
t: time (s)
4
What is impulse?
What is impulse?
The change in momentum of an object caused by a force acting on it for a length of time.
5
What is the principle of conservation of momentum?
What is the principle of conservation of momentum?
Momentum is always conserved in an explosion / collision, so there is no net change in momentum.
Sum of momentum before collision = sum of momentum after collision
(provided there are no external forces.)
明年三大考试局的GCSE大考时间都已经定了,同学们如果还有像Momentum这样觉得不好理解的知识点,一定要早发现、早解决,万一临大考前,发现每个章节都有不懂的地方就非常尴尬了。如果你觉得学校教学节奏太快,每周都会积累很多问题,或者处于A和A*之间的复习瓶颈,难以突破,点击预约试听【唯寻IGCSE同步培训班】——
唯寻教学天团授课
根据不同考试局整理相关高频考察点
弥补以往学习过程中的遗漏点
由简入繁的单模块专项练习
在有限的时间内,换来实打实的成效
更多GCSE物理考点点击