物理与化学模拟
21 个从 GCSE 到大学水平的物理与化学交互模拟，带实时图表、读数和预测挑战。
GCSE
力与加速度
推力要大过摩擦力
Forces on a slope
Will it slide, or stay put?
Momentum and collisions
Bounce, crunch or stick together?
弹簧振子
拉伸、松手，看它弹跳
弦上的波
两列波叠加，找出波节
Refraction and Snell's law
Bend light, then trap it
Lenses and ray diagrams
Where does the image land?
串联与并联电路
串联还是并联：谁更亮？
Radioactive decay
Which nucleus goes next?
气体定律
压缩、加热，感受压强
化学反应速率
让 A 和 B 反应更快
A-level
抛体运动
哪个角度飞得最远？
单摆
摆动的快慢由什么决定？
Orbits and Kepler's laws
Launch a planet. Will it come back?
Capacitor charging and discharging
How long until it's half full?
Electric fields and equipotentials
Where does the field cancel out?
Double slit and diffraction grating
Two slits, a row of bright lines
Photoelectric effect
Why can't red light do it?
大学
系统地学
GCSE Combined and Separate Science 中讲这个主题的课：先看分步讲解，再做考试风格的题目，每次数字都不同。 课程为英文。