C.4 Standing waves and resonance Quiz
Studying this course? Keep your progress in one place.
Pick an answer for each. Quizzes never use energy.
5 questions, one answer each
Each answer is checked as you go, with why.
See all 5 questions
1. A standing wave has nodes 15 cm apart. What is the wavelength?
- A. 7.5 cm
- B. 15 cm
- C. 30 cm
- D. 60 cm
2. A pipe closed at one end has a fundamental of 150 Hz. Which is its next harmonic?
- A. 300 Hz
- B. 450 Hz
- C. 600 Hz
- D. 750 Hz
3. Two points on a standing wave are on opposite sides of one node. Their phase difference is:
- A. 0
- B. π/2 rad
- C. π rad
- D. 2π rad
4. Which type of damping is used in car suspension?
- A. Light
- B. Critical
- C. Heavy
- D. None
5. Increasing the damping of a driven oscillator:
- A. Raises the peak amplitude
- B. Makes the resonance peak sharper
- C. Lowers and broadens the resonance peak
- D. Has no effect on the peak