MCQOPTIONS
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MCQOPTIONS
This section includes 78 Mcqs, each offering curated multiple-choice questions to sharpen your Physics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Force of 10 N at a distance of 60cm from the axis of rotation can be balanced by a force of moment arm is: |
| A. | 6 meters |
| B. | 60 meters |
| C. | 0.6 meters |
| D. | l meter |
| Answer» C. 0.6 meters | |
| 2. |
Conventionally anti clockwise torques are taken to be: |
| A. | Positive |
| B. | None of these |
| C. | Negative |
| D. | Zero |
| Answer» D. Zero | |
| 3. |
The tam torque is synonymous with: |
| A. | Angular momentum |
| B. | Angular velocity |
| C. | Moment of inertia |
| D. | Moment of force |
| Answer» B. Angular velocity | |
| 4. |
If body is disturbed and it returns to its original.. position then it is in ______ . equilibrium: |
| A. | Stable |
| B. | Neutral |
| C. | None of these |
| D. | Unstable |
| Answer» C. None of these | |
| 5. |
All the bodies in equilibrium don't possess any: |
| A. | None of these |
| B. | Velocity |
| C. | Shape |
| D. | Acceleration |
| Answer» B. Velocity | |
| 6. |
The S.I unit of torque is: |
| A. | Radian /sec |
| B. | Newton — meter/sec |
| C. | Newton—meter |
| D. | Newton—second |
| Answer» B. Newton — meter/sec | |
| 7. |
In angular (Rotational) motion, the analog of force is: |
| A. | Rotational Inertia |
| B. | Moment of inertia |
| C. | Torque |
| D. | Radius .of gyration |
| Answer» B. Moment of inertia | |
| 8. |
If a body is disturbed and it falls away from its original position, then the body is said to be in ____________ equilibrium |
| A. | Dynamic |
| B. | Stable |
| C. | Unstable |
| D. | Neutral |
| Answer» E. | |
| 9. |
Conventionally clockwise torques are taken as : |
| A. | Negative |
| B. | Zero |
| C. | None of these |
| D. | Positive |
| Answer» D. Positive | |
| 10. |
The jumping of a paratrooper is an example of _________ equilibrium: |
| A. | Unstable |
| B. | Static |
| C. | Dynamic |
| D. | Stable |
| Answer» D. Stable | |
| 11. |
The perpendicular distance between the point of application of force and the fixed point or axis of rotation is called as? |
| A. | Moment of inertia. |
| B. | Moment arm. |
| C. | Centre of mass |
| D. | Momentum |
| Answer» C. Centre of mass | |
| 12. |
In extended body in equilibrium may be considered a particle provided. |
| A. | line of action ot all forces meet in a point |
| B. | all the forces are concurrent |
| C. | any one of the above |
| D. | there is no moment of force |
| Answer» D. there is no moment of force | |
| 13. |
A body in equilibrium does not possess any |
| A. | acceleration |
| B. | velocity |
| C. | speed |
| D. | momentum |
| Answer» B. velocity | |
| 14. |
The direction of torque is |
| A. | parallel the direction of applied force. |
| B. | the same as direction of conesponding applied force |
| C. | perpendicular the direction of applied force |
| D. | opposite to the direction of applied force |
| Answer» D. opposite to the direction of applied force | |
| 15. |
Right hand rule is applied to find? |
| A. | Neither the direction nor the magnitude. |
| B. | The magnitude of the vector |
| C. | None of these. |
| D. | The direction of a vector obtained by the vector product of two vectors. |
| Answer» E. | |
| 16. |
In static and dynamic equilibrium, the body does not posses any? |
| A. | acceleration neither linear nor angular |
| B. | None of these |
| C. | velocity neither linear nor angular |
| D. | displacement |
| Answer» B. None of these | |
| 17. |
Dynamic equilibrium Is also known as? |
| A. | Kinetic equilibrium. |
| B. | Static equilibrium. |
| C. | Translatory Equilibrium. |
| D. | Rotational equilibrium. |
| Answer» B. Static equilibrium. | |
| 18. |
"When line of action of a force passes through the axis of rotation, due to which its turning effect "?" will be?" |
| A. | minimum |
| B. | maximum |
| C. | None of these |
| D. | Zero |
| Answer» E. | |
| 19. |
The center of mass of a system of particles |
| A. | never coincides with the center of gravity |
| B. | coincides with the center of gravity only in a uniform gravitational field |
| C. | is lower than the center of gravity. |
| D. | coincides always with the center of gravity |
| Answer» C. is lower than the center of gravity. | |
| 20. |
Torque acting on a body produces: |
| A. | Orbital motion |
| B. | Linear motion |
| C. | Spin motion |
| D. | Rotatory motion |
| Answer» B. Linear motion | |
| 21. |
The motion of the planets around the sun is an example of: |
| A. | Spin motion |
| B. | Rotatory motion |
| C. | Orbital motion |
| D. | Translatory motion |
| Answer» D. Translatory motion | |
| 22. |
The physical quantity, which produces angular acceleration, is called: |
| A. | Centripetal force |
| B. | Torque |
| C. | Angular velocity |
| D. | Centrifugal force |
| Answer» C. Angular velocity | |
| 23. |
The force, which is always directed towards the same point, is: |
| A. | centripetal force |
| B. | Gravitational force |
| C. | Arbitrary force |
| D. | Central force |
| Answer» D. Central force | |
| 24. |
The line about which the body rotates is called: |
| A. | Axis of rotation |
| B. | Axis of rotation |
| C. | Normal |
| D. | Axis of rotation |
| Answer» E. | |
| 25. |
The turning effect of force is called: |
| A. | Momentum |
| B. | None of these |
| C. | Moment |
| D. | Torque |
| Answer» E. | |
| 26. |
A particle moving with constant velocity may' be |
| A. | accelerating |
| B. | retarding |
| C. | in equilibrium |
| D. | moving in circle. |
| Answer» D. moving in circle. | |
| 27. |
The physical quantity that produces angular acceleration is called |
| A. | centripetal force |
| B. | centrifugal force |
| C. | torque |
| D. | angular velocity |
| Answer» D. angular velocity | |
| 28. |
Torque is defined as the time rare of change of: |
| A. | Linear velocity |
| B. | Linear momentum |
| C. | Angular momentum |
| D. | Angular velocity |
| Answer» C. Angular momentum | |
| 29. |
The direction of torque can be determined by: |
| A. | Knowing the direction of r |
| B. | Right hand rule |
| C. | Knowing the direction of F |
| D. | Left hand rule |
| Answer» C. Knowing the direction of F | |
| 30. |
If every constituent particle of abody moves in a circle, the body is said to posses a: |
| A. | Rotational motion |
| B. | None of these |
| C. | Translatory motion |
| D. | Vibratory motion |
| Answer» D. Vibratory motion | |
| 31. |
A body possesses linear velocity and linear momentum when it is in? |
| A. | Translatory motion. |
| B. | Rotatory motion. |
| C. | Spin motion |
| D. | Orbital motion. |
| Answer» B. Rotatory motion. | |
| 32. |
Clockwise rotation is taken as? |
| A. | Negative |
| B. | Positive |
| C. | Neutral |
| D. | Infinity |
| Answer» B. Positive | |
| 33. |
Jumping of a paratrooper from an helicopter is an example of? |
| A. | Dynamic equilibrium. |
| B. | None of these |
| C. | Static equilibrium. |
| D. | Equilibrium |
| Answer» B. None of these | |
| 34. |
The second condition of equilibrium states that, "a body will be in equilibrium, if the vector sum of all the torques acting on it is?" |
| A. | One |
| B. | None of these. |
| C. | Zero |
| D. | Maximum |
| Answer» D. Maximum | |
| 35. |
"A body will be in equilibrium if the resultant of all the forces acting on it is zero". This is called as? |
| A. | Third condition of equilibrium |
| B. | First condition of equilibrium. |
| C. | Second condition of equilibrium |
| D. | Fourth condition of equilibrium. |
| Answer» C. Second condition of equilibrium | |
| 36. |
If the vector sum the torques acting on it is zero, the body is said to be in? |
| A. | Rotational equilibrium. |
| B. | Translatory equilibrium. |
| C. | Equilibrium. |
| D. | Static equilibrium |
| Answer» B. Translatory equilibrium. | |
| 37. |
The torque is the vector product of two vectors force and displacement and is a vector at? |
| A. | 90° to the plane of the force and displacement. |
| B. | 0° to the plane of the force and displacement. |
| C. | 360° to the plane of the force and displacement. |
| D. | 180° to the plane of the force and displacement. |
| Answer» B. 0° to the plane of the force and displacement. | |
| 38. |
In the system international, the unit of torque is? |
| A. | Newton-second. |
| B. | Newton-meter. |
| C. | Newton/meter2. |
| D. | Newton/meter. |
| Answer» C. Newton/meter2. | |
| 39. |
Buildings and bridges are an example of? |
| A. | Dynamic equilibrium. |
| B. | Static equilibrium. |
| C. | Kinetic equilibrium. |
| D. | None of these. |
| Answer» C. Kinetic equilibrium. | |
| 40. |
A point of a body or a system of particles which moves as if the total mass of the body or the system of particles were concentrated there and all the applied forces were acting at that point is called as? |
| A. | Centre of gravity. |
| B. | Centre of circle. |
| C. | Centre of rotation |
| D. | Centre of mass. |
| Answer» E. | |
| 41. |
The direction of torque is? |
| A. | None of these. |
| B. | The same as the direction of the corresponding applied force. |
| C. | Opposite to the direction of the applied force |
| D. | Perpendicular to the direction of the applied force. |
| Answer» E. | |
| 42. |
A body is said to be in translational equilibrium if the net force on it is? |
| A. | Maximum |
| B. | Zero |
| C. | Unity |
| D. | Minimum |
| Answer» C. Unity | |
| 43. |
In the system international, the unit of angular momentum is? |
| A. | N-m |
| B. | N.s |
| C. | J.s |
| D. | Kg. s |
| Answer» D. Kg. s | |
| 44. |
A body possesses angular velocity and angular momentum when it is in? |
| A. | Motion under gravity. |
| B. | None of these. |
| C. | Rotatory motion. |
| D. | Translatory motion. |
| Answer» D. Translatory motion. | |
| 45. |
The angular momentum of the body is conserved if the net external torque on it is? |
| A. | Unity |
| B. | Zero |
| C. | Minimum |
| D. | Maximum |
| Answer» C. Minimum | |
| 46. |
A body in equilibrium? |
| A. | is always at rest |
| B. | can move with constant velocity |
| C. | can move with variable acceleration |
| D. | can move with constant acceleration |
| Answer» C. can move with variable acceleration | |
| 47. |
The two forces which form a couple? |
| A. | can be replaced by a single equivalent force. |
| B. | cannot be replaced by a single equivalent force. |
| C. | None of these. |
| D. | are perpendicular to each other. |
| Answer» C. None of these. | |
| 48. |
Every point on a rotating body has the same? |
| A. | Angular velocity. |
| B. | None of these. |
| C. | Linear velocity. |
| D. | Linear momentum. |
| Answer» B. None of these. | |
| 49. |
Two forces which cannot be replaced by a single equivalent force are said to form? |
| A. | a couple |
| B. | a bond |
| C. | None of these. |
| D. | a pair |
| Answer» B. a bond | |
| 50. |
The physical quantity which tends to rotate a body is called? |
| A. | Angular displacement. |
| B. | Torque |
| C. | Angular velocity. |
| D. | Angular momentum. |
| Answer» C. Angular velocity. | |