McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Uncategorized topics .
Chapters
| 1. |
Maximum displacement from equilibrium position is |
| A. | frequency |
| B. | amplitude |
| C. | wavelength |
| D. | period |
| Answer» B. amplitude | |
| 2. |
Displacement-time graph depicting an oscillatory motion is |
| A. | cos curve |
| B. | sine curve |
| C. | tangent curve |
| D. | straight line |
| Answer» B. sine curve | |
| 3. |
In s.h.m, velocity at equilibrium position is |
| A. | minimum |
| B. | constant |
| C. | maximum |
| D. | zero |
| Answer» C. maximum | |
| 4. |
Natural frequency of a guitar string can be changed by changing it's |
| A. | area |
| B. | diameter |
| C. | length |
| D. | stiffness |
| Answer» C. length | |
| 5. |
Over-damping results in |
| A. | slower return to equilibrium |
| B. | faster return to equilibrium |
| C. | equilibrium is never achieved |
| D. | arrhythmic return to equilibrium |
| Answer» A. slower return to equilibrium | |
| 6. |
Our eyes detect the oscillations up to |
| A. | 8 Hz |
| B. | 9 Hz |
| C. | 6 Hz |
| D. | 5 Hz |
| Answer» D. 5 Hz | |
| 7. |
For s.h.m, maximum speed is proportional to |
| A. | wavelength |
| B. | acceleration |
| C. | time |
| D. | frequency |
| Answer» D. frequency | |
| 8. |
A force that acts to return the mass to it's equilibrium position is called |
| A. | frictional force |
| B. | restoring force |
| C. | normal force |
| D. | contact force |
| Answer» B. restoring force | |
| 9. |
In cars, springs are damped by |
| A. | shock absorbers |
| B. | engine |
| C. | tyres |
| D. | brake pedals |
| Answer» A. shock absorbers | |
| 10. |
If time period of an oscillation is 0.40 s, then it's frequency is |
| A. | 2 Hz |
| B. | 2.5 Hz |
| C. | 3 Hz |
| D. | 3.5 Hz |
| Answer» B. 2.5 Hz | |
| 11. |
As amplitude of resonant vibrations decreases, degree of damping |
| A. | increases |
| B. | remains same |
| C. | decreases |
| D. | varies |
| Answer» C. decreases | |
| 12. |
Oscillations become damped due to |
| A. | normal force |
| B. | friction |
| C. | tangential force |
| D. | parallel force |
| Answer» B. friction | |
| 13. |
In s.h.m, object's acceleration depends upon |
| A. | displacement from equilibrium position |
| B. | magnitude of restoring force |
| C. | both A and B |
| D. | force exerted on it |
| Answer» C. both A and B | |
| 14. |
angular frequency of s.h.m is equal to |
| A. | 2π |
| B. | 2πf |
| C. | 2f |
| D. | 1⁄T |
| Answer» B. 2πf | |
| 15. |
For a resonating system it should oscillate |
| A. | bound |
| B. | only for some time |
| C. | freely |
| D. | for infinite time |
| Answer» C. freely | |
| 16. |
Velocity at equilibrium position is |
| A. | constant |
| B. | minimum |
| C. | maximum |
| D. | zero |
| Answer» C. maximum | |
| 17. |
If the swing moves from right to left, then velocity is |
| A. | negative |
| B. | positive |
| C. | constant |
| D. | zero |
| Answer» A. negative | |
| 18. |
Acceleration is directly related to |
| A. | displacement |
| B. | negative of displacement |
| C. | velocity |
| D. | negative of speed |
| Answer» B. negative of displacement | |
| 19. |
Gradient of velocity-time graph gives |
| A. | force |
| B. | frequency |
| C. | wavelength |
| D. | acceleration |
| Answer» D. acceleration | |
| 20. |
Magnitude of gradient of a-x graph is {{}} |
| A. | ω |
| B. | ω2 |
| C. | ω⁄2 |
| D. | ω3 |
| Answer» B. ω2 | |
| 21. |
Potential energy of system is maximum at |
| A. | extreme position |
| B. | mean position |
| C. | in between extreme and mean position |
| D. | moderate position |
| Answer» A. extreme position | |
| 22. |
In s.h.m, acceleration is always directed towards the |
| A. | equilibrium position |
| B. | mean position |
| C. | tangent to the motion |
| D. | downwards |
| Answer» A. equilibrium position | |
| 23. |
Number of oscillations per unit time is |
| A. | amplitude |
| B. | wavelength |
| C. | frequency |
| D. | period |
| Answer» C. frequency | |
| 24. |
When displacement x = 0, then kinetic energy of system is |
| A. | minimum |
| B. | maximum |
| C. | constant |
| D. | zero |
| Answer» B. maximum | |
| 25. |
Energy of a system executing s.h.m is |
| A. | increasing |
| B. | decreasing |
| C. | constant |
| D. | variable |
| Answer» C. constant | |
| 26. |
Oscillatory motion has a |
| A. | straight lined graph |
| B. | randomly lined graph |
| C. | sinusoidal graph |
| D. | asymptotic graph |
| Answer» C. sinusoidal graph | |
| 27. |
During one oscillation, phase of oscillation changes by |
| A. | π rad |
| B. | π⁄2 rad |
| C. | 2π rad |
| D. | 4π rad |
| Answer» C. 2π rad | |
| 28. |
If an object moves back and forth repeatedly around a mean position it is called |
| A. | oscillating |
| B. | revolving |
| C. | rotating |
| D. | motion |
| Answer» A. oscillating | |
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