Section 5.1 - Further Mechanics Exam Questions Flashcards
Explain the differences between two graphs showing the amplitude and frequency for two springs where one has a greater spring constant (4)
Resonance peak at higher frequency due to higher spring constant
Resonant peak broader due to damping (for higher k)
State the conditions for simple harmonic motion (2)
Acceleration is proportional to displacement
Acceleration acts in the opposite direction to displacement
Sand is placed on a surface oscillating up and down, explain why above a certain frequency, the sand loses contact with the surface (3)
When the vibrating surface accelerates down with an acceleration less than g, the sand stays in contact
Above a particular frequency, the acceleration is greater than g
There is no contact force on the sand