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MCAT Physics Mcq Questions Circular motion Set 2

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1. The circumference subtends an angle




2. The relation between linear and angular acceleration is




3. When a body is whirled in a horizontal circle by means of a string the centripetal force is supplied by




4. Centripetal force performs




5. When a body moves in a circle of radius r with linear speed V its centripetal force is




6. A stone is whirled in a vertical circle at the end of a string. When the stone is at the highest position the tension in the string is




7. The span of broad jump depends upon




8. In case of planets the necessary acceleration is provided by




9. If a car moves with a uniform speed of 2 ms-1 in a circle of radius 0.4. Its angular speed is




10. A body can have consutant velocity when it follows a




11. A body moving along the circumference of a circle completes two revolutions. If the radius of the circular path is R the ration of displacement to the covered path will be




12. The angular speed for daily rotatio of earth in rad S-1 is




13. When a wheel 1 m in diameter makes 30 rev min the linear speed of point on its rim in ms-1 is




14. A cyclist cycling around a circular racing track skids because




15. If a wheel of radius r turns through an angle of 30? then the distance through which any point on its rim moves is




16. In angular motion, Newtons second law of motion is




17. Angular speed of seconds hand of a watch in rads-1 is




18. The shaft of a motor rotates at a constant angular speed of 360rev/min. Angle turned through in 1 sec in radian is




19. What is outward force acting on a mass of 10 kg when rotating at one end an inelastic string 10m long at speed of 1m/s?




20. If we whirl a stone at the end of a string in the vertical circle, it is likely to break when the stone is




21. Waves transmit __________________ from one place to another




22. The waves that require a material medium for their propagation are called




23. The distance between any two consecutive crests or troughs is called




24. When two identical traveling waves are superimposed, the velocity of the resultant wave




25. In vibrating cord the points where the amplitude is maximum, are called




26. The distance between two consecutive nodes is




27. The distance between consecutive node and anitnode is




28. If stretching force T of wire increases, then its frequency




29. A stationary wave is set up in the air column of a closed pipe. At the closes end of the pipe




30. It is possible to distinguish between transverse and longitudinal waves form the property of




31. According to Newton sound travel in air under the conditions of




32. Sound waves do not travel in vacuum because




33. Velocity of sound in vacuum is




34. Increase in velocity of sound in the air for 1 ?C rise in temperature is




35. The velocity of sound is greatest in




36. On loading the prong of a tuning form with wax its frequency




37. The velocity of sound in air would become double than its velocity at 0?C at temperature




38. The normal ear is the most sensitive in the frequency range




39. Ultrasonic have




40. The periodic alternation of sound between maximum and minimum loudness are called




41. The number of beats produced per second is equal to




42. Beats are the results of




43. Silence zone takes place due to




44. Doppler effect applies to




45. When the source of sound moves away form a stationary listener then _________ occurs.




46. A simple pendulum has a bob of mass m and its frequency is f. If we replaced the bob with a heavier one say of 2m then that will be its new frequency?




47. Which one is the correct relation for fundamental frequency of open and closed pipe?




48. In open organ pipe




49. Which one is the correct relation?




50. The dimension of elastic modulus ? is