MCQOPTIONS
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MCQOPTIONS
This section includes 15 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. |
A moving body of mass m and velocity 3km/h collides with a rest body of mass 2m and strikes to it. Now the combined mass starts to move. What will be the combined velocity? |
| A. | 3km/h |
| B. | 4km/h |
| C. | 1km/h |
| D. | 2km/h |
| Answer» D. 2km/h | |
| 2. |
A child is sitting on a swing. Its minimum and maximum heights from the ground 0.75m and 2m respectively, its maximum speed will be _____________ |
| A. | 10 m/s |
| B. | 5 m/s |
| C. | 8 m/s |
| D. | 15 m/s |
| Answer» C. 8 m/s | |
| 3. |
If the earth were to shrink suddenly, what would happen to the length of the day? |
| A. | It increases |
| B. | It remains the same |
| C. | It decreases |
| D. | It becomes unpredictable |
| Answer» D. It becomes unpredictable | |
| 4. |
When a cat falls from a height _____________ |
| A. | It sustains injury |
| B. | It dies |
| C. | It lands on its feet |
| D. | It bounces back |
| Answer» D. It bounces back | |
| 5. |
A heavenly body revolves around a massive star in a highly elliptical orbit. Ignoring mass loss of the heavenly body when it comes too close to the star, the angular momentum over the orbit is _____________ |
| A. | Zero |
| B. | Increasing |
| C. | Decreasing |
| D. | Constant |
| Answer» E. | |
| 6. |
A_MOVING_BODY_OF_MASS_M_AND_VELOCITY_3KM/H_COLLIDES_WITH_A_REST_BODY_OF_MASS_2M_AND_STRIKES_TO_IT._NOW_THE_COMBINED_MASS_STARTS_TO_MOVE._WHAT_WILL_BE_THE_COMBINED_VELOCITY??$ |
| A. | 3km/h |
| B. | 4km/h |
| C. | 1km/h |
| D. | 2km/h |
| Answer» D. 2km/h | |
| 7. |
A child is sitting on a swing. Its minimum and maximum heights from the ground 0.75m and 2m respectively, its maximum speed will b? |
| A. | 10 m/s |
| B. | 5 m/s |
| C. | 8 m/s |
| D. | 15 m/s |
| Answer» C. 8 m/s | |
| 8. |
If the earth were to shrink suddenly, what would happen to the length of the day? |
| A. | It increases |
| B. | It remains the same |
| C. | It decreases |
| D. | It becomes unpredictable |
| Answer» D. It becomes unpredictable | |
| 9. |
How many propellers are there in a helicopter? |
| A. | One |
| B. | No propellers |
| C. | Three |
| D. | Two |
| Answer» E. | |
| 10. |
When a cat falls from a height |
| A. | It sustains injury |
| B. | It dies |
| C. | It lands on its feet |
| D. | It bounces back |
| Answer» D. It bounces back | |
| 11. |
We can rise from a chair without bending a little forward. |
| A. | True |
| B. | False |
| Answer» C. | |
| 12. |
A body can be in equilibrium while it is in motion. |
| A. | True |
| B. | False |
| Answer» C. | |
| 13. |
A heavenly body revolves around a massive star in a highly elliptical orbit. Ignoring mass loss of the heavenly body when it comes too close to the star, the angular momentum over the orbit is |
| A. | Zero |
| B. | Increasing |
| C. | Decreasing |
| D. | Constant |
| Answer» E. | |
| 14. |
Which component of linear momentum does not contribute to angular momentum? |
| A. | Horizontal component |
| B. | Vertical component |
| C. | Radial component |
| D. | Tangential component |
| Answer» D. Tangential component | |
| 15. |
If no external torque acts on a body, its angular velocity remains conserved. |
| A. | True |
| B. | False |
| Answer» C. | |