Choose the correct statements about the motion of a simple harmonic oscillator. The frequency is inversely proportional to the square root of the oscillator mass. Doubling the spring constant and reducing the mass by one-half would make the period double. The period of the oscillator is proportional to the square root of the oscillator mass. The spring constant of a spring increases as the sspring is stretched, Simple Harmonic Oscillators must be subject to a linear restoring force as described by Hooke's Law Doubling the amplitude and cutting in half the mass of an oscillator would make the period increase by the square root of 2. The amplitude of a simple harmonic oscillator is proportional to the period.