McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Uncategorized topics .
Chapters
| 1. |
Contact force always acts at |
| A. | acute angles to the surface producing it |
| B. | right angles to the surface producing it |
| C. | obtuse angle to the surface producing it |
| D. | parallel to the surface producing it |
| Answer» B. right angles to the surface producing it | |
| 2. |
Combinations of base units are |
| A. | simple units |
| B. | derived units |
| C. | scalars |
| D. | vectors |
| Answer» B. derived units | |
| 3. |
Two forces which make up Newton's third law can |
| A. | act on same objects |
| B. | act on different objects |
| C. | not act at same time |
| D. | not act oppositely |
| Answer» B. act on different objects | |
| 4. |
Rate of falling object in vacuum is |
| A. | independent of weight |
| B. | dependent on mass |
| C. | independent of mass |
| D. | dependent of weight |
| Answer» C. independent of mass | |
| 5. |
At terminal velocity the |
| A. | air resistance and weight are equal |
| B. | air resistance is less than weight |
| C. | weight is more than air resistance |
| D. | air resistance is more than weight |
| Answer» A. air resistance and weight are equal | |
| 6. |
Vehicle will accelerate as long as |
| A. | air resistance is greater than thrust |
| B. | air resistance is greater than inertia |
| C. | thrust is greater than air resistance and friction |
| D. | friction is greater than thrust |
| Answer» C. thrust is greater than air resistance and friction | |
| 7. |
1 N is equal to {{}} |
| A. | 1 kg m s-2 |
| B. | 10 kg m s-1 |
| C. | 10 kg m s-2 |
| D. | 100 kg m s-2 |
| Answer» A. 1 kg m s-2 | |
| 8. |
Density of air is |
| A. | 1⁄8 of water |
| B. | 1⁄7 of water |
| C. | 1⁄45 of water |
| D. | 1⁄800 of water |
| Answer» D. 1⁄800 of water | |
| 9. |
Until a force acts on a body, it's velocity is |
| A. | zero |
| B. | constant |
| C. | increasing |
| D. | decreasing |
| Answer» B. constant | |
| 10. |
If there is no net force acting on body, then its acceleration is |
| A. | zero |
| B. | constant |
| C. | increasing |
| D. | decreasing |
| Answer» A. zero | |
| 11. |
Acceleration of a rocket having mass 5000 kg and resultant force acting on it is 200,000 N is {{}} |
| A. | 50 m s-2 |
| B. | 56 m s-2 |
| C. | 70 m s-2 |
| D. | 40 m s-2 |
| Answer» D. 40 m s-2 | |
| 12. |
Force which makes it difficult to run through shallow water is called |
| A. | viscosity |
| B. | up thrust |
| C. | friction |
| D. | drag |
| Answer» D. drag | |
| 13. |
Prefix for 10-9is {{}} |
| A. | micro |
| B. | deci |
| C. | centi |
| D. | nano |
| Answer» D. nano | |
| 14. |
Acceleration due to gravity on moon is |
| A. | 9.9 m s-2 |
| B. | 9.5 m s-2 |
| C. | 6.1 m s-2 |
| D. | 1.6 m s-2 |
| Answer» D. 1.6 m s-2 | |
| 15. |
An object immersed in fluid experiences an upward force named |
| A. | viscosity |
| B. | drag force |
| C. | up thrust |
| D. | friction |
| Answer» C. up thrust | |
| 16. |
If each term in an equation has same base units then the equation is said to be |
| A. | homogeneous |
| B. | non homogeneous |
| C. | equation of straight line |
| D. | equation of circle |
| Answer» A. homogeneous | |
| 17. |
A force similar to friction is |
| A. | forward force |
| B. | pulling force |
| C. | drag force |
| D. | contact force |
| Answer» C. drag force | |
| 18. |
Forces acting on an object are balanced if resultant force on object is |
| A. | constant |
| B. | zero |
| C. | increasing |
| D. | decreasing |
| Answer» B. zero | |
| 19. |
Base unit among following is |
| A. | Newton |
| B. | Joule |
| C. | Candela |
| D. | Watt |
| Answer» C. Candela | |
| 20. |
Force provided by breaking system of train if it is decelerating at rate of -3 m s -2 and having mass 10,000 kg is {{}} |
| A. | -30,000 N |
| B. | -40,000 N |
| C. | -50,000 N |
| D. | 30,000 N |
| Answer» A. -30,000 N | |
| 21. |
Force applied on a body and its acceleration are |
| A. | inversely related |
| B. | directly related |
| C. | not related at all |
| D. | inversely proportional |
| Answer» B. directly related | |
| 22. |
The larger the mass of a moving object the |
| A. | larger the acceleration produced |
| B. | acceleration becomes constant |
| C. | smaller the acceleration |
| D. | acceleration becomes zero |
| Answer» C. smaller the acceleration | |
| 23. |
500 MW can be written in powers of 10 as {{}} |
| A. | 500 × 106 |
| B. | 500 × 103 |
| C. | 500 × 10-6 |
| D. | 500 × 109 |
| Answer» A. 500 × 106 | |
| 24. |
Point where entire weight of an object acts is |
| A. | edge |
| B. | center of gravity |
| C. | central point |
| D. | can be anywhere in body |
| Answer» B. center of gravity | |
| 25. |
Another name for force of gravity acting on an object is |
| A. | friction |
| B. | air resistance |
| C. | weight |
| D. | mass |
| Answer» C. weight | |
| 26. |
When two objects are in contact, they exert forces in |
| A. | opposite direction |
| B. | same directions |
| C. | can be both A and B |
| D. | perpendicular direction |
| Answer» A. opposite direction | |
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