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ECAT - Practice Test - Physics - Gravitation Quiz

Attempt 10 MCQs on ECAT - Practice Test - Physics - Gravitation | Quiz 5

41. A satellite orbits at altitude equal to Earth's radius (R). Find orbital speed (take g=10).



42. If a planet has 4 times Earth mass and 2 times radius, what is escape velocity relative to Earth?



43. If a satellite's orbital radius doubles, what happens to its speed?



44. Two satellites of different masses at same orbit. Which has greater orbital speed?



45. If a satellite is launched with speed 8 km/s from Earth's surface, what orbit does it follow?



46. What is the energy required to move a satellite from orbit radius r to radius R?



47. What is the orbital period of a satellite just above the surface of a planet?



48. How does gravitational field vary inside a uniform solid sphere?



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