A kid who knows to add an x-cubed term to a simple harmonic oscillator.

一个知道给简单谐振子加一个x的立方的孩子。

We also described how the position of an object in simple harmonic motion changes over time.

我们还研究了如何改变对象的位置 它具有随时间的简谐运动。

That back-and-forth motion caused by the force of the spring, is simple harmonic motion.

这种摆动运动是由 弹簧的力是简谐运动。

Simple harmonic motion is actually a lot like uniform circular motion, mathematically speaking.

简谐运动其实就像 很多圆周运动，在数学意义上。

For an object in simple harmonic motion, the graph of its position versus time is a wave.

对于简谐运动的元素，直线 位置与时间的关系图采用波浪的形式。

So, let’s recall what we know about uniform circular motion, to see what it can tell us about simple harmonic motion.

那么，让我们回顾一下我们对匀速圆周运动的了解， 看看它能告诉我们什么关于简谐运动。

So, let's recall what we know about uniform circular motion, to see what it can tell us about simple harmonic motion.

让我们回忆一下我们对匀速圆周运动的了解， 让我们看看它可能会告诉我们关于简谐运动的信息。

So now, with the help of our knowledge about circular motion, we can understand the period, frequency, and angular velocity of the ball’s simple harmonic motion as it oscillates on the spring.

所以现在， 借助我们关于圆周运动的知识，我们可以了解球在弹簧上振荡时的简谐运动的周期、频率和角速度。