12 A Section review Flashcards
What do periodic oscillations look like?
A clock pendulum moving back and forth repeatedly.
What characteristic makes them especially different from other kinds of motion?
The motion of the object continually repeats itself.
What is the mathematical relationship between an oscillating system’s period and its frequency? What are the standard units for period? for frequency?
Frequency is the inverse of period and vice versa. Seconds. 1/S (1 divided by seconds).
- What force produces periodic oscillations? How does this force occur?
Restoring force. It wants to restore the object to the rest position.
How does the mass of an oscillating system generally affect its frequency?
The more massive a system is, the more slowly it will vibrate and the longer its period will be when other factors are held constant.
What happens to the amplitude of real-world periodic oscillations over time? Why does this occur?
The amplitude decreases. Because of the effect of friction on periodic motion.
What happens to an oscillating system’s amplitude when it begins to resonate?
The amplitude will increase.
What limits a resonating system’s amplitude?
The structure of the object.
T or F: Periodic motion includes regular back-and- forth oscillations and vibrations as well as circular motion.
True
