Photo AI
Explain the term resonance and describe a laboratory experiment to demonstrate it - Leaving Cert Physics - Question c - 2010
Question c
Explain the term resonance and describe a laboratory experiment to demonstrate it. Give two characteristics of a musical note and name the physical property on whi... show full transcript
Worked Solution & Example Answer:Explain the term resonance and describe a laboratory experiment to demonstrate it - Leaving Cert Physics - Question c - 2010
Step 1
Explain the term resonance and describe a laboratory experiment to demonstrate it.
Answer
Resonance is the phenomenon where an object vibrates with maximum amplitude at a specific frequency, known as the natural frequency of the object.
Laboratory Experiment: Demonstrating Resonance
Apparatus:
- Tuning fork
- Length of pipe (with adjustable means for varying length)
Procedure:
- Strike the tuning fork to produce sound.
- Hold the vibrating fork over the open end of the pipe.
- Gradually change the length of the pipe by inserting or removing sections until you find a length at which a loud sound is heard.
Observation:
A loud sound indicates resonance at a specific length of the pipe.
Step 2
Step 3
Explain why a musical tune does not sound the same when played on different instruments.
Answer
Different instruments emit a fundamental frequency plus varying combinations of overtones or harmonics.
A closed pipe (like a flute) emits multiples of a fundamental frequency, while an open pipe (like a trumpet) emits richer harmonics, resulting in distinct sound quality when the same tune is played across different instruments.