ECAT MCQ Quiz Hub

ECAT Physics Circular Motion Mcqs Questions Set 2

Choose a topic to test your knowledge and improve your ECAT skills

1. The rotational K.E of hoop is equal to the




2. A hoop and disc have same mass and radius. Their rotational K.E are related by an equation




3. The critical speed of an artificial satellite is




4. Geo-stationary satellite completes one rotation around earth in




5. Radius of geo-stationary orbit from center of earth is nearly




6. According to Einstein the gravity interaction is possible between




7. One radian is equal to




8. The period of a circular motion is given by




9. The direction of linear velocity of body moving in a circle is




10. When a body moves in a circle the angle between its linear velocity and angular velocity is always




11. The circumference subtends an angle




12. The relation between linear and angular acceleration is




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




14. Centripetal force performs




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




16. 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




17. The span of broad jump depends upon




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




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




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




21. 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




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




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




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




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




26. In angular motion Newtons second law of motion is




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




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




29. 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?




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




31. moving along the circumference of a circle completes two revolutions. If the radius of the circular path is R the ratio of displacement to the covered path will be




32. A man of weight W is standing on an elevator which is ascending with an acceleration a. The apparent weight of the man is




33. Who discovered the inverse square law for gravity?




34. The planet nearest to the earth is




35. A satellite moving round the earth constitutes




36. Minimum number of communication satellites required to cover the whole carth is




37. A body of 2 kg is suspended form the ceiling of an elevator moving up with an acceleration g. Its apparent weight in the elevator will be




38. If a body of mass 10 kg is allowed to fall freely its weight becomes




39. How many days would be in a year if the distance between the earth and the sun were reduced to half of its present value (assuming circular orbit)?




40. When a body is moving along a circular path it covers a certain angle in a given internal of time. Such type of motion is