(Multiple choice)

(1)

A crystal wineglass shattered by an intense sound is an example of 

(a) Resonance. 

(b) Critical damping. 

(c) An exponential decrease in energy. 

(d) Over-damping.

(2)

Two mass–spring systems oscillate at frequencies f_A and f_B. If f_A = 2f_B and the spring constants of the two springs are equal, it follows that the masses are related by 

(a) M_A = 4M_B. 

(b) M_A = M_B/√2 

(c) M_A = M_B/2. 

(d) M_A = M_B/4.

(3)

Two mass--spring systems A and B oscillate so that their energies are equal. If MA = 2MB, then which formula below relates the amplitudes of oscillation? 

(a) A_A = A_B/4 

(b) A_A = A_B/√2 

(c) A_A =A_B 

(d) Not enough information is given to determine the ratio of the amplitudes.

(4)

Two mass--spring systems A and B oscillate so that their energies are equal. If kA = 2kB, then which formula below relates the amplitudes of oscillation? 

(a) A_A = A_B/4 

(b) A_A = A_B/√2

(c) A_A =A_B 

(d) Not enough information is given to determine the ratio of the amplitudes.

(5)

Pendulum A has a bob of mass M_A and a length L_A; pendulum B has a bob of mass M_B and a length L_B, If the period of A is twice that of B, then 

(a) L_A=2L_BandM_A=2M_B. 

(b) L_A=4L_BandM_A=M_B. 

(c) L_A = 4L_B whatever the ratio M_A/M_B. 

(d) L_A= √2L_B whatever the ratio M_A/M_B.