#### Oscillations Two Marks Questions

11th Standard

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Physics

Time : 00:45:00 Hrs
Total Marks : 30
15 x 2 = 30
1. Define time period of simple harmonic motion.

2. Define frequency of simple harmonic. motion

3. What is an epoch?.

4. What is meant by free oscillation?.

5. Explain damped oscillation. Give an example.

6. Define forced oscillation. Give an example.

7. Compute the time period for the following system if the block of mass m is slightly displaced vertically down from its equilibrium position and then released. Assume that the pulley is light and smooth, strings and springs are light.

8. Define molar specific heat capacity.

9. What is Oscillatory motion?

10. Why the amplitude of the vibrating pendulum should be small?

11. When a pendulum clock gains time, what adjustments should be made?

12. The displacement of harmonic oscillator is given by x = α sin wt + β cos wt. what is the amplitude of the oscillation?

13. A mass M attached to a spring oscillates with a period of 2 sec. if the mass is increased by 2 kg, the period increases by the second. Find the initial mass Massuming that Hooke's law is obeyed.

14. The acceleration dual to gravity on the surface of moon is 1.7 ms-2. What is the time period of a simple pendulum on the surface of moon if its time period on the surface of earth is 3.5 s?

15. A0.950 kg mass hangs vertically from a spring that he a spring constant of 8.50 N/m. The mass is set into vertical oscillation and after 600 s, you find that the amplitude of the oscillation is $\frac{1}{10}$that of initial amplitude. What is the damping constant associated with this motion?