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5/32 MCQs for:
MOTION: Simple harmonic motion (SHM)
Doubling only the spring constant of a vibrating mass-and-spring system produces what effect on the system's mechanical energy?
A mass on a spring undergoes SHM. When the mass is at maximum displacement from equilibrium, its instantaneous acceleration
A mass on a spring undergoes SHM. When the mass passes through the equilibrium position, its instantaneous velocity:

One end of a horizontal string is fixed to a wall. It is then plucked transversely at a point ¾ way from the wall, as shown. Which of the following refers to the correct property of the wave after it reflects off the wall?

1) It has a greater speed after it reflects on the wall;

2) It has a greater frequency after it reflects off the wall;

3) The reflected pulse will be a trough.

Increasing the mass M of a mass-and-spring system causes what kind of change in the resonant frequency of the system? (Assume no change in the system's spring constant k.)