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Resonance in Waves

Physics ⇒ Waves and Sound

Resonance in Waves starts at 10 and continues till grade 12. QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Resonance in Waves. How you perform is determined by your score and the time you take. When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.
See sample questions for grade 10
A closed pipe has a length of 0.25 m. If the speed of sound in air is 340 m/s, what is the fundamental frequency of the pipe?
A guitar string vibrates at 330 Hz. If another string nearby starts vibrating at the same frequency without being plucked, what phenomenon is occurring?
A mass-spring system has a mass of 0.5 kg and a spring constant of 200 N/m. What is its natural frequency? (Use f = (1/2π)√(k/m))
A mass-spring system has a natural frequency of 5 Hz. If it is driven at 5 Hz, what will happen to its amplitude?
A pipe open at both ends has a length of 0.5 m and the speed of sound in air is 340 m/s. What is the fundamental frequency of the pipe?
A string fixed at both ends has a length of 1 m and a wave speed of 200 m/s. What is its fundamental frequency?
Describe how resonance is used in musical instruments.
Describe the relationship between resonance and energy transfer.
Describe what happens to the amplitude of a system when it is in resonance.
Explain why a singer can break a glass by singing at a certain pitch.
Explain why resonance does not occur if the driving frequency is not equal to the natural frequency.
Explain why resonance is important in the design of buildings and bridges.
Explain why resonance is important in the operation of a microwave oven.
Explain why soldiers are advised to break step while crossing a bridge.
The natural frequency of a tuning fork is 440 Hz. If a sound wave of 440 Hz is produced nearby, what will happen to the tuning fork?
What happens to the amplitude of oscillation if the driving frequency is much higher than the natural frequency?
What is resonance in the context of waves and sound?
What is the main danger of resonance in tall buildings during an earthquake?
What is the term for the frequency at which a system naturally vibrates?
A bridge has a natural frequency of 2 Hz. During a parade, a group of soldiers marches across the bridge at a cadence of 2 steps per second. Predict and explain the possible consequences for the bridge.