MCQOPTIONS
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MCQOPTIONS
This section includes 7 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 metal ball rebounds better than a rubber ball. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
In a thermal power station, coal is used for the generation of electricity. How energy changes from one form to another before it is transformed into electrical energy? |
| A. | Heat energy->Mechanical energy->Electrical energy |
| B. | Heat energy->Electrical energy->Mechanical energy |
| C. | Mechanical energy->Heat energy->Electrical energy |
| D. | Electrical energy->Heat energy->Mechanical energy |
| Answer» B. Heat energy->Electrical energy->Mechanical energy | |
| 3. |
What happens to the potential energy when one proton and one electron are brought close together? |
| A. | The potential energy gets increased |
| B. | The potential energy gets converted into kinetic energy |
| C. | The potential energy gets remains the same |
| D. | The potential energy gets decreased |
| Answer» E. | |
| 4. |
When the velocity of an aeroplane is doubled, the momentum ___________ |
| A. | Remains unchanged |
| B. | Is conserved |
| C. | Becomes zero |
| D. | Increases uniformly |
| Answer» C. Becomes zero | |
| 5. |
When the momentum of a body is doubled, its kinetic energy ___________ |
| A. | Remains the same |
| B. | Drops to zero |
| C. | Becomes four times its initial kinetic energy |
| D. | Becomes ten times its kinetic energy |
| Answer» B. Drops to zero | |
| 6. |
When a spring is compressed or stretched, the potential energy of the spring ___________ |
| A. | Decreases |
| B. | Stays constant |
| C. | Increases |
| D. | Becomes zero |
| Answer» D. Becomes zero | |
| 7. |
The earth moving around the sun in a circular orbit is acted upon by a force and hence work must be done on the earth by the force. |
| A. | True |
| B. | False |
| Answer» C. | |