0 of 9 Questions completed
Questions:
You have already completed the quiz before. Hence you can not start it again.
Quiz is loading…
You must sign in or sign up to start the quiz.
You must first complete the following:
0 of 9 Questions answered correctly
Your time:
Time has elapsed
You have reached 0 of 0 point(s), (0)
Earned Point(s): 0 of 0, (0)
0 Essay(s) Pending (Possible Point(s): 0)
Average score |
|
Your score |
|
Pos. | Name | Entered on | Points | Result |
---|---|---|---|---|
Table is loading | ||||
No data available | ||||
The acceleration due to gravity on Earth’s surface is 9.8 m s-2. Suppose the radius of Earth was reduced to a quarter of its present value while its mass remained the same. What would be the new value of the acceleration due to gravity on the surface in m s-2?
What is the gravitational force exerted on the Earth by the Moon?
What is the orbital period of an Earth satellite having an orbital radius one third that of the Moon?
A satellite, initially in a low Earth orbit, is moved to a new orbit where the gravitational force acting on it is one quarter of its original value. The satellite’s period in its new orbit is closest to –
Two satellites of masses M1 and M2 have escape velocities V1 and V2 from the surface of a planet of radius R, with acceleration due to gravity g. Which of the following is true?
A satellite of mass 50kg moves from Point A where the gravitational potential due to Earth is -20MJkg-1 to another Point B where the gravitational potential is -60MJKg^-1. What is the direction when the satellite moves from A to B and the change in potential energy?
A satellite orbits a planet of mass m at a distance d from its centre of mass. If the mass of the planet were to decrease by 50%, the slope of the satellite’s Gravitational Potential Energy curve at the same distance will become
The mass of the Earth is 5.98 x 1024 kg. The radius of the Earth is 6378.1 km. The Mass of Mars is 6.42 x 1023 kg. The radius of Mars is 3397.2 km. The ratio of the acceleration due to gravity at the surface of Mars to that on earth is
The weight of a one tonne space craft on Earth is 9800 N and the weight of the same space craft on Mars is 3800N. What is the acceleration due to gravity on Mars?