What will be the frequency of oscillation of kinetic energy?

why is it that the frequency of oscillation of potential energy and kinetic energy is twice as that of displacement or velocity or acceleration of a partocle excecuting shm

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I am currently learning about simple harmonic motion. In a book I am reading it says frequency of kinetic energy is twice the frequency of velocity for a harmonic oscillator by showing velocity vs time graph and KE vs time graph

What I think it means to say is that kinetic energy reaches its maximum value 2 times in the same time it takes for velocity to reach its maximum value. Am I right?