Equations & Units
Symbol used to represent Period.
Capital T
What point of a pendulum has the most kinetic energy?
At the bottom or equilibrium.
What happens to the pitch when you make a string longer?
Lower pitch
Hertz (Hz)
Where is the potential energy the greatest for a mass on a spring?
Full compression or expansion or farthest from the equilibrium.
What happens to the pitch of a guitar when the string is tightened?
Higher pitch
Units for Power
Watts (W)
What type of wave has movement that is perpendicular to the direction of the wave?
Transverse Wave
What type of wave is a sound wave?
Longitudinal Wave
What happens to the period of a pendulum when the length of the string increases?
The Period increases when the length of the string on a pendulum increases.
If the period of a wave is 4 seconds, then what is its frequency?
1/4 or 0.25Hz
What is the term for low frequency sound below the threshold of humans' ability to hear?
Infrasonic
What does the x represent on Hooke's law?
Displacement from the equilibrium
A wolverine hangs from a string from a ceiling. Person A pulls back the wolverine at an angle of 50 and lets go and times the period. Person B pulls back the wolverine at an angle of 150 and lets go and times the period. Which period will be shorter?
Same because the period of a pendulum is only dependent on length.
A phenomenon that occurs when the frequency of a force applied to a system matches the natural frequency of the system, resulting in a large amplitude of vibration.
Resonance