高中物理/如何解决物理问题
外观
< 高中物理
三角形:毕达哥拉斯会提醒我们他著名的公式:A^2 + B^2 = C^2
/| C/ | A Pythagorean Theorem: A^2 + B^2 = C^2 / | (ex) Billy started at the park. To get to his house, he went east for 3 miles and north for 4 miles. When he came /___| home very tired, his sister said to him "Silly, the fastest way to get somewhere is a straight line. So since you B went east for 3 miles, That means B = 3 and B^2 = 9. Since you went north for 4 miles, that means A = 4 and A^2 = 16. So to get C^2, i just add up A^2 and B^2 and thats equal to 25. So the answer is 25 and the "turnip root" of 25 is 5. Only if you got here 2 miles earlier, you wouldn't have been so tired, Billy!"
代数概念
/代数金字塔
/ \ Where A = BC / A \ How to use it: Whatever you want the equation to be equal to, just block that part out /B | C\ (ex) if i wanted B in terms of A and C, just block B and it will equate to visually, "A divided by C"
Almost all physics problems at this stage are in the form, A = BC
(ex) General Purpose Problem ______ | | |\ 9 N -3n | | | \ =====O / \ D = 5 meters | 1 kg | --------| /_ =====O | | T = 2 seconds |______| |/__| =====O \ / Mass = 1 kg []_______5 meters________[] gravity = 9.8 m/s^2
Joey Newton 最近被父母训斥。他的父母知道 Joey 是一位强壮的孩子,拥有 9 牛顿的力量,所以他们在他的脚上放了一个 1 公斤重的保龄球来阻止他逃跑。更糟糕的是,Johnny 有一个非常强大的“反逃生”风扇,它对他的脚施加了 3 牛顿的力。
根据以下问题,根据以下概念找出答案
A. 什么是力?(第一章:力)B. 什么是加速度?(第二章:加速度)A. W = 质量 X 重力(第四章:能量)
B. 如果他的腿“实际上”是保龄球,那么问题的合力是多少?
涂鸦/图表:基本上它用于可视化问题,并查看概念和图片之间的关系。通过绘制图表可以获得的最佳概念之一是对材料的更好理解。通常通过绘制这样的图表,它可以大大简化数学。
为了帮助解决问题,始终将给出的数字与其相应的值一起分配。
解决物理问题的关键词 通常出现在问题中的通用关键词是“物体从静止开始”= 初始速度(Vo)为 0“物体静止停止”= 末速度(Vf)为 0“变快”= 添加“变慢”= 减去距离、位移、移动 = 从起始位置到最终位置的变化。“北” “南” - 他们要么希望你使用毕达哥拉斯定理,要么使用向量图延长、拉伸 = 变大 另外,试着想象问题中给出的“物理状况”。例如,如果问题中给出“车轮在没有打滑的情况下滚动”,试着在脑海中想象它,然后开始解决问题。尤其是在力学方面,这很有帮助。