If you fasten lumps of clay on the prongs of a tuning fork, does this change the amount of moving mass? Does it change the stiffness of the pongs? Explain then whether the fork's natural frequency of oscillation is increased or decreased by adding the clay?

Answer 1

mass goes up, stiffness does not change significantly so frequency goes down

Answer 2

Thank you!

Answer 3

prongs of a tuning fork when struck