MCQOPTIONS
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MCQOPTIONS
This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Physics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Find the ratio of potential energy if an object is raised to thrice of its height and its mass is tripled. |
| A. | 1:1 |
| B. | 1:4 |
| C. | 1:9 |
| D. | 1:3 |
| Answer» D. 1:3 | |
| 2. |
The potential energy of an object cannot be increased by internal forces. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
The potential energy of an object of constant mass and fixed reference is determined by its _____ |
| A. | mass |
| B. | gravitational acceleration |
| C. | position |
| D. | velocity |
| Answer» D. velocity | |
| 4. |
Consider 2 balls A and B of the same mass. The potential energy of ball A is thrice that of ball B. How high is ball A compared to ball B? |
| A. | Same height as ball B |
| B. | Twice as high height as ball B |
| C. | Thrice as high height as ball B |
| D. | Four times as high height as ball B |
| Answer» D. Four times as high height as ball B | |
| 5. |
Since the potential energy of an object depends on the acceleration due to gravity and since the acceleration due to gravity decreases as altitude increases, we can conclude that the potential energy of an object decreases as altitude increases. |
| A. | True |
| B. | False |
| Answer» C. | |
| 6. |
An object is thrown from the ground with a velocity of 5 m/s. If the object has a mass of 2kg, what will be its potential energy at the top-most point of its trajectory? (Assume g = 10 m/s2) |
| A. | 5 J |
| B. | 15 J |
| C. | 25 J |
| D. | 50 J |
| Answer» D. 50 J | |
| 7. |
A 10kg object is raised to a height of 20m. What is the magnitude of its potential energy? (Assume g = 10 m/s2) |
| A. | 500 J |
| B. | 1000 J |
| C. | 1500 J |
| D. | 2000 J |
| Answer» E. | |
| 8. |
An object of mass 5kg is taken from a height of 10 m to a height of 30 m. What is the increment in its potential energy? (Assume g = 10m/s2) |
| A. | 500 J |
| B. | 1000 J |
| C. | 1500 J |
| D. | 2000 J |
| Answer» C. 1500 J | |
| 9. |
The potential energy of an object maximises as its velocity increases. |
| A. | True |
| B. | False |
| Answer» C. | |