使用方法
斜抛运动模拟器(抛物线轨迹·发射角·射程)
在画面上向右上方拖动即可设定初速度和发射角,松手后小球就会飞出。拖动的长度就是速度的大小,方向就是发射角。
匀变速直线运动
斜抛运动
摩擦
靠墙杆
滑轮
过山车
动量守恒
碰撞
圆周运动
弹簧振子
单摆
行星运动
匀变速直线运动模拟器
Slope is acceleration, area is displacement
You can solve it without the time
A negative acceleration is not always a slowdown
Falling and throwing upward are one motion
斜抛运动模拟器
Horizontal and vertical move separately
What disappears is the time
The farthest throw is at 45°
摩擦模拟器
Friction does as it is told
It is set by how hard the surface is pressed
The angle of slipping does not depend on weight
靠墙杆模拟器
Balanced forces can still topple it
The wall is smooth, the floor is rough
The more upright, the safer
滑轮模拟器
Add the equations and the tension goes
Tension is not the weight
It takes weight to get it moving
过山车模拟器
The path makes no difference
Heavy in the valley, light on the hill
It takes two and a half times the height
动量守恒定律模拟器
Impulse changes momentum
They cancel on the inside
The second equation is the restitution
碰撞模拟器
The wall carries the momentum off
Every bounce multiplies it by e²
Infinitely many bounces, and it stops
圆周运动模拟器
Constant speed and still accelerating
There is no such force as centripetal force
The flatter it lies, the faster it turns
弹簧振子模拟器
Simple harmonic motion is a circle's shadow
Velocity and acceleration are shadows too
Energy only changes its form
单摆模拟器
A small swing is the same as a spring
Height decides the speed
In an accelerating train the vertical tilts
行星运动模拟器
The Moon is falling too
The nearer in, the faster
The period is set by the size of the orbit
Fast enough and it never returns