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This section includes 19 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Physics knowledge and support exam preparation. Choose a topic below to get started.
1. |
Fuel is consumes at the rate of 100kg/s in a rocket. The exhaust gases are ejected at speed of 4.5×104m/s. What is the thrust experienced by the rocket? |
A. | 3.19×106N |
B. | 4.5N |
C. | 3.19N |
D. | 4.5×106N |
Answer» E. | |
2. |
A man weighing 60kg runs along the rails with a velocity of 18km/h and jumps into a car of mass 1 quintal standing on the rails. Calculate the velocity with which the car will start travelling along the rails. |
A. | 15m/s |
B. | 3.3m/s |
C. | 1.88m/s |
D. | 5m/s |
Answer» D. 5m/s | |
3. |
When a man jumps out of a boat to the shore, the boat slightly moves away from the shore. |
A. | True |
B. | False |
Answer» B. False | |
4. |
While firing a bullet, the gun should be ___________ |
A. | Held away from the shoulder |
B. | Held tight to the shoulder |
C. | Held straight |
D. | Held with one hand stretched |
Answer» C. Held straight | |
5. |
Conservation of linear momentum is a combination of ___________ |
A. | Newton’s second law and third law |
B. | Newton’s second law and first law |
C. | Newton’s first law and third law |
D. | Newton’s second law and impulse force |
Answer» B. Newton’s second law and first law | |
6. |
Which of the following is called a real law of motion? |
A. | Second law |
B. | First law |
C. | Third law |
D. | Law of inertia |
Answer» B. First law | |
7. |
Book kept on a table is an example for ___________ |
A. | Inertia |
B. | First law of motion |
C. | Third law of motion |
D. | Second law of motion |
Answer» D. Second law of motion | |
8. |
Which of the following is the property of Newton’s third law? |
A. | A body moving with a uniform speed in a straight line cannot change the direction of motion by itself |
B. | It is applicable only to a point particle |
C. | It is a local relation |
D. | The action and reaction cannot cancel each other |
Answer» E. | |
9. |
WHEN_A_MAN_JUMPS_OUT_OF_A_BOAT_TO_THE_SHORE,_THE_BOAT_SLIGHTLY_MOVES_AWAY_FROM_THE_SHORE.?$ |
A. | True |
B. | False |
Answer» B. False | |
10. |
Fuel is consumes at the rate of 100kg/s in a rocket. The exhaust gases are ejected at speed of 4.5√ó104m/s. What is the thrust experienced by the rocket?$# |
A. | 3.19√ó10<sup>6</sup>N |
B. | 4.5N |
C. | 3.19N |
D. | 4.5√ó10<sup>6</sup>N |
Answer» E. | |
11. |
A_man_weighing_60kg_runs_along_the_rails_with_a_velocity_of_18km/h_and_jumps_into_a_car_of_mass_1_quintal_standing_on_the_rails._Calculate_the_velocity_with_which_the_car_will_start_travelling_along_the_rails.$ |
A. | 15m/s |
B. | 3.3m/s |
C. | 1.88m/s |
D. | 5m/s |
Answer» D. 5m/s | |
12. |
While firing a bullet, the gun should b? |
A. | Held away from the shoulder |
B. | Held tight to the shoulder |
C. | Held straight |
D. | Held with one hand stretched |
Answer» C. Held straight | |
13. |
Conservation of linear momentum is a combination of |
A. | Newton’s second law and third law |
B. | Newton’s second law and first law |
C. | Newton’s first law and third law |
D. | Newton’s second law and impulse force |
Answer» B. Newton‚Äö√Ñ√∂‚àö√ë‚àö¬•s second law and first law | |
14. |
For a man standing inside a life, when will his apparent weight be equal to real weigh? |
A. | When the life is moving upwards with a uniform acceleration |
B. | When the lift is moving downwards with a uniform velocity |
C. | At rest or moving with uniform velocity |
D. | Falling freely |
Answer» D. Falling freely | |
15. |
Which of the following is called real law of motion? |
A. | Second law |
B. | First law |
C. | Third law |
D. | Law of inertia |
Answer» B. First law | |
16. |
Book kept on a table is an example for |
A. | Inertia |
B. | First law of motion |
C. | Third law of motion |
D. | Second law of motion |
Answer» D. Second law of motion | |
17. |
Which of the following is the property of Newton’s third law?$ |
A. | A body moving with a uniform speed in a straight line cannot change the direction of motion by itself |
B. | It is applicable only to a point particle |
C. | It is a local relation |
D. | The action and reaction cannot cancel each other |
Answer» E. | |
18. |
Action and reaction take place on the same bodies. |
A. | True |
B. | False |
Answer» C. | |
19. |
A body of mass 0.25kg moving with a velocity 12m/s is stopped by applying a force of 0.6N. Calculate the time taken to stop the body. |
A. | 24s |
B. | 5s |
C. | 3s |
D. | 7s |
Answer» C. 3s | |