SHM WORDS

7. Acceleration is proportional to displacement from the equilibrium position and in the opposite direction
9. When an object is disturbed from its equilibrium position, a _________ acts on it to bring it back to the equilibrium position.
10. movement back and forth in a regular rhythm
11. Occurs when the frequency of a driving force equals the natural frequency of vibration of the system; the system then vibrates with a maximum amplitude
13. Oscillations that occur without a periodic force being applied
14. The simplest model to describe vibrations is called simple ___________ motion
15. The number of oscillations per unit time
16. the simple harmonic motion is described by a ________ function.

1. The maximum displacement of the object from its equilibrium position (always positive)
2. In the mass and spring system the period depend on the mass and on the ______
3. a situation where there are not frictional forces
4. The distance an object moves from its equilibrium position
5. Oscillations that occur when a periodic force is applied
6. The time for one complete oscillation
8. Number of radians completed per second
12. the state in which the net force on an object is zero