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. |
For a satellite executing an elliptical orbit around a planet, its minimum potential energy is at the perigee. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
If the kinetic energy of a satellite is halved, its orbital radius becomes _____ |
| A. | 1/2 times |
| B. | 2 times |
| C. | 4 times |
| D. | infinity |
| Answer» C. 4 times | |
| 3. |
Assume that a satellite executes perfectly circular orbits around a perfectly circular sphere. The work done by the satellite in 1 complete revolution is _____ |
| A. | (1/2) x (G x m x M)/(R+h) |
| B. | (G x m x M)/(R+h) |
| C. | (1/2) x (G x m x M)/(R+h) |
| D. | 0 |
| Answer» E. | |
| 4. |
For a satellite with an elliptical orbit and not a circular orbit, the potential energy varies with time. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 5. |
For a satellite with an elliptical orbit and not a circular orbit, the kinetic energy varies with time. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 6. |
A satellite revolves around the earth in a circular orbit with a velocity v . What is the total energy of the satellite? Let m be the mass of the satellite. |
| A. | (m*v<sup>2</sup>)/2 |
| B. | (m*v<sup>2</sup>)/2 |
| C. | (3*m*v<sup>2</sup>)/2 |
| D. | (m*v<sup>2</sup>) |
| Answer» B. (m*v<sup>2</sup>)/2 | |
| 7. |
A satellite of mass m is in a circular orbit of radius 1.5R around the earth of radius R. How much energy is required to move it to an orbit of radius 2R? |
| A. | -(G*M*m)/12R |
| B. | (G*M*m)/12R |
| C. | -(G*M*m)/4R |
| D. | (G*M*m)/4R |
| Answer» B. (G*M*m)/12R | |
| 8. |
What is the total energy possessed by a satellite of mass m orbiting above the earth of mass M and radius R at a height h ? |
| A. | [(G*M*m)/2*(R+h)] |
| B. | -[(G*M*m)/2*(R+h)] |
| C. | [(G*M*m)/(R+h)] |
| D. | -[(G*M*m)/(R+h)] |
| Answer» C. [(G*M*m)/(R+h)] | |
| 9. |
What is the magnitude of the ratio of KE and PE of a satellite revolving around a planet in a circular orbit of radius R ? |
| A. | 1:4 |
| B. | 1:2 |
| C. | 2:1 |
| D. | 3:2 |
| Answer» C. 2:1 | |