McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Uncategorized topics .
Chapters
| 1. |
Angle through which an object has moved is called it's |
| A. | linear displacement |
| B. | linear distance |
| C. | angular displacement |
| D. | angular distance |
| Answer» C. angular displacement | |
| 2. |
Angular velocity of second hand of clock is 0.105 rad s-1 and length of hand is 1.8 cm, then speed of tip of hand is {{}} |
| A. | 0.189 cm s-1 |
| B. | 1 cm s-1 |
| C. | 0.189 m s-1 |
| D. | 2 m s-1 |
| Answer» A. 0.189 cm s-1 | |
| 3. |
Object moving along a circular path is |
| A. | in equilibrium |
| B. | not in equilibrium |
| C. | not moving with constant speed |
| D. | in random motion |
| Answer» B. not in equilibrium | |
| 4. |
At the fairground, the force that balances out our weight is |
| A. | centripetal force |
| B. | centrifugal force |
| C. | friction |
| D. | gravitational force |
| Answer» C. friction | |
| 5. |
If an object moves a circular distance ‘s’ of radius ‘r’, then it's angular displacement is {{}} |
| A. | s⁄r |
| B. | r⁄s |
| C. | rs |
| D. | r2s |
| Answer» A. s⁄r | |
| 6. |
Speed of an object travelling around a circle depends upon |
| A. | angular velocity |
| B. | radius |
| C. | circumference |
| D. | both A and B |
| Answer» D. both A and B | |
| 7. |
Number of degree a complete circle represents is |
| A. | 90° |
| B. | 180° |
| C. | 270° |
| D. | 360° |
| Answer» D. 360° | |
| 8. |
When a body is moving along a circular path, it's velocity is directed towards |
| A. | center |
| B. | normal |
| C. | tangent |
| D. | parallel to circle |
| Answer» C. tangent | |
| 9. |
Speed is unchanged because work done on an object is |
| A. | zero |
| B. | positive |
| C. | negative |
| D. | infinite |
| Answer» A. zero | |
| 10. |
180° is equal to{{}} |
| A. | 2π rad |
| B. | π rad |
| C. | π⁄2rad |
| D. | π⁄4rad |
| Answer» B. π rad | |
| 11. |
For the minute hand of the clock, the angular velocity is equal to {{}} |
| A. | 2 rad s-1 |
| B. | 3 rad s-1 |
| C. | 1 rad s-1 |
| D. | 0.00175 rad s-1 |
| Answer» D. 0.00175 rad s-1 | |
| 12. |
105° in radians is equal to |
| A. | 2 rad |
| B. | 3 rad |
| C. | 1.83 rad |
| D. | 4.5 rad |
| Answer» C. 1.83 rad | |
| 13. |
1 rad is equal to |
| A. | 57.3° |
| B. | 54° |
| C. | 45° |
| D. | 90° |
| Answer» A. 57.3° | |
| 14. |
According to Newton's 2nd law the object's acceleration and centripetal force are |
| A. | at right angles to each other |
| B. | anti parallel to each other |
| C. | make acute angle with each other |
| D. | in same direction |
| Answer» D. in same direction | |
| 15. |
A stone whirling in a horizontal circle on the end of string depicts |
| A. | conical pendulum |
| B. | cone |
| C. | pendulum |
| D. | eclipse |
| Answer» A. conical pendulum | |
| 16. |
Centripetal force is directed towards the |
| A. | tangent to circle |
| B. | center |
| C. | normal to circle |
| D. | parallel to circle |
| Answer» B. center | |
| 17. |
Velocity required by an object to orbit around Earth is{{}} |
| A. | 9 km s-1 |
| B. | 7 km s-1 |
| C. | 8 km s-1 |
| D. | 10 km s-1 |
| Answer» C. 8 km s-1 | |
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