What term describes the tendency of a system to vibrate at maximum amplitude at certain frequencies, often considered a form of interference?

What term describes the tendency of a system to vibrate at maximum amplitude at certain frequencies, often considered a form of interference?

• A. Refraction
• B. Reflection
• C. Resonance
• D. Interference

Answer: (C)

Resonance is the tendency for a system to vibrate at maximum amplitude when driven at certain frequencies. When the driving frequency matches the system’s natural frequency, each push adds energy in step with the motion, so the oscillations build up over time. This amplification comes from the driving force reinforcing the system’s natural vibration, a form of constructive interference between the external drive and the system’s own motion. Refraction and reflection describe how waves change direction when they enter a new medium or bounce off a surface, not how a system responds with large oscillations at a specific frequency. Interference is the general superposition of waves, which can be constructive or destructive; resonance is the particular case where the response is greatly amplified at a natural frequency.

Resonance is the tendency for a system to vibrate at maximum amplitude when driven at certain frequencies. When the driving frequency matches the system’s natural frequency, each push adds energy in step with the motion, so the oscillations build up over time. This amplification comes from the driving force reinforcing the system’s natural vibration, a form of constructive interference between the external drive and the system’s own motion. Refraction and reflection describe how waves change direction when they enter a new medium or bounce off a surface, not how a system responds with large oscillations at a specific frequency. Interference is the general superposition of waves, which can be constructive or destructive; resonance is the particular case where the response is greatly amplified at a natural frequency.