MCQOPTIONS
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MCQOPTIONS
This section includes 3 Mcqs, each offering curated multiple-choice questions to sharpen your Physics Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What is the increase in potential energy storage when the compression distance is doubled in a spring obeying Hooke’s law? |
| A. | No increase |
| B. | 100% increase |
| C. | Cannot be determined |
| D. | 4 times |
| Answer» E. | |
| 2. |
Assume a spring extend by “d” due to some load. Let “F” be the spring force and “k’ the spring constant. Then, the potential energy stored is _____ |
| A. | 2d/F2 |
| B. | F2/2k |
| C. | 2k/T2 |
| D. | F2/2d |
| Answer» C. 2k/T2 | |
| 3. |
How much should a spring of indefinite length be compressed to have a potential energy equivalent to a ball of mass 6 kg raised to a height of 120 m above the ground? Let the spring have a stiffness of k = 100 N/m and assume g = 10 m/s2. |
| A. | 6m |
| B. | 12m |
| C. | 20m |
| D. | 144m |
| Answer» C. 20m | |