# Harmonic oscillator: Quiz

Question 1: For a particular driving frequency called the ________ frequency ωr = ω01-2ζ², the amplitude (for a given F0) is maximum.
Q factorMechanical resonanceResonanceResonator

Question 2: Oscillate with a frequency smaller than in the non-damped case, and an ________ decreasing with time (underdamped oscillator).
Measuring instrumentWaveAmplitudeCrest factor

Question 3: For example, the Optical parametric oscillator converts an input ________ wave into two output waves of lower frequency (ωsi).
Laser applicationsLaserX-rayHelium

Question 4: In many vibrating systems the frictional force Ff can be modeled as being proportional to the velocity v of the object: Ff = −cv, where c is the ________ damping coefficient.
ViscosityFluid dynamicsRheologySurface tension

Question 5: Other analogous systems include electrical harmonic oscillators such as ________.
RL circuitRLC circuitConstant k filterRC circuit

Question 6: This effect is different from regular resonance because it exhibits the ________ phenomenon.
Rayleigh–Taylor instabilityInstabilityMagnetohydrodynamicsFluid dynamics

Question 7: The physical quantity that is oscillating varies greatly, and could be the swaying of a tall building in the wind, the speed of an electric motor, or the current through an ________.
Constant k filterRC circuitRLC circuitRL circuit

Question 8: If F is the only force acting on the system, the system is called a simple harmonic oscillator, and it undergoes simple harmonic motion: sinusoidal oscillations about the equilibrium point, with a constant ________ and a constant frequency (which does not depend on the amplitude).
Crest factorAmplitudeWaveMeasuring instrument

Question 9: A conservative force is one that has a ________ function.
Potential energyAtomMagnetic fieldElectric potential

Question 10: If a frictional force (damping) proportional to the ________ is also present, the harmonic oscillator is described as a damped oscillator.
KinematicsClassical mechanicsSpeedVelocity