MCQOPTIONS
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MCQOPTIONS
This section includes 17 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. |
If earth loses its gravity, then for a body ___________ |
| A. | A weight becomes zero, but not the mass |
| B. | Mass becomes zero but not weight |
| C. | Neither mass nor weight becomes zero |
| D. | Both mass and weight are zero |
| Answer» B. Mass becomes zero but not weight | |
| 2. |
For a satellite escape velocity from the earth is 11.2 km/s. If a body is to be projected in a direction making an angle 45° to the vertical, then what is the escape velocity? |
| A. | 11.2×2km/s |
| B. | 11.2km/s |
| C. | 11.2×√2km/s |
| D. | 11.2/√2km/s |
| Answer» C. 11.2×√2km/s | |
| 3. |
Two spheres of masses m and M are in air and the gravitational force between them is F. The space around the masses is now filled with liquid of specific gravity 3. The gravitational force will now be ___________ |
| A. | 3F |
| B. | F |
| C. | F/3 |
| D. | F/9 |
| Answer» C. F/3 | |
| 4. |
Statement 1- An astronaut experiences weightlessness in a space satellite.Statement 2- When a body falls freely, it does not experience gravity. |
| A. | Statement 1 and statement 2 are correct and statement 2 is the correct explanation of statement 1 |
| B. | Statement 1 and statement 2 are correct but statement 2 is not the correct explanation of statement 1 |
| C. | Statement 1 is true but statement 2 is false |
| D. | Both statement 1 and 2 are false |
| Answer» C. Statement 1 is true but statement 2 is false | |
| 5. |
Kepler’s second law is based on ___________ |
| A. | Newton’s first law |
| B. | Newton’s second law |
| C. | Special theory of relativity |
| D. | Conservation of angular momentum |
| Answer» E. | |
| 6. |
A man waves his arm while walking. This is ____________ |
| A. | To keep constant velocity |
| B. | To ease the tension |
| C. | To increase the velocity |
| D. | To balance the effect of earth’s gravity |
| Answer» E. | |
| 7. |
FOR_A_SATELLITE_ESCAPE_VELOCITY_FROM_EARTH_IS_11.2_KM/S._IF_A_BODY_IS_TO_BE_PROJECTED_IN_A_DIRECTION_MAKING_AN_ANGLE_45¬¨ àû_TO_THE_VERTICAL,_THEN_THE_ESCAPE_VELOCITY_IS?$# |
| A. | 11.2√ó2km/s |
| B. | 11.2km/s |
| C. | 11.2√ó‚àö2km/s |
| D. | 11.2/‚àö2km/s |
| Answer» C. 11.2‚Äö√†√∂‚àö‚â•‚Äö√Ñ√∂‚àö‚Ć‚àö‚àÇ2km/s | |
| 8. |
A ball is dropped from a spacecraft revolving around the earth at a height of 120km. What will happen to the ball? |
| A. | It will go very far in space |
| B. | It will move with the same speed tangentially to the spacecraft |
| C. | It will fall down to the earth gradually |
| D. | It will continue to move with the same speed along the original orbit of spacecraft |
| Answer» E. | |
| 9. |
If_earth_loses_its_gravity,_then_for_a_body$ |
| A. | A weight becomes zero, but not the mass |
| B. | Mass becomes zero but not weight |
| C. | Neither mass nor weight becomes zero |
| D. | Both mass and weight are zero |
| Answer» B. Mass becomes zero but not weight | |
| 10. |
Two spheres of masses m and M are in air and the gravitational force between them is F. The space around the masses is now filled with liquid of specific gravity 3. The gravitational force will now b? |
| A. | 3F |
| B. | F |
| C. | F/3 |
| D. | F/9 |
| Answer» C. F/3 | |
| 11. |
Statement 1- An astronaut experiences weightlessness in a space satellite |
| A. | None of these |
| B. | Statement 1 and statement 2 are correct and statement 2 is the correct explanation of statement 1 |
| C. | Statement 1 and statement 2 are correct but statement 2 is not the correct explanation of statement 1 |
| Answer» C. Statement 1 and statement 2 are correct but statement 2 is not the correct explanation of statement 1 | |
| 12. |
Kepler’s second law is based on$ |
| A. | Newton’s first law |
| B. | Newton’s second law |
| C. | Special theory of relativity |
| D. | Conservation of angular momentum |
| Answer» E. | |
| 13. |
A man waves his arm, while walking. This is |
| A. | To keep constant velocity |
| B. | To ease the tension |
| C. | To increase the velocity |
| D. | To balance the effect of earth’s gravity |
| Answer» E. | |
| 14. |
The mass of the moon is nearly 10% of the mass of the earth. What will be the gravitational force of the earth on the moon, in comparison to the gravitational force of the moon on the earth? |
| A. | Both of the force will be equal |
| B. | Gravitational force of the earth on the moon is much lesser |
| C. | Gravitational force of the moon on the earth is much lesser |
| D. | There is no effect |
| Answer» B. Gravitational force of the earth on the moon is much lesser | |
| 15. |
Gravity acts on all bodies in proportion to their masses; therefore heavy body falls faster than light body. |
| A. | True |
| B. | False |
| Answer» C. | |
| 16. |
A body can be shielded from gravitational effects. |
| A. | True |
| B. | False |
| Answer» C. | |
| 17. |
If the density of the planet is doubled without any change in its radius, how does g change on the planet? |
| A. | It remains the same |
| B. | It is tripled |
| C. | It reduces |
| D. | It is doubled |
| Answer» E. | |