Motion of a Satellite ( Orbital Velocity, Time Period and Energy of Satellite ) NEET Questions

Physics - Gravitation

Motion of a Satellite ( Orbital Velocity, Time Period and Energy of Satellite ) MCQ Questions


13.
A satellite is projected vertically upwards from Earth's surface with a velocity equal to the orbital velocity. The maximum height reached is:

NEET - 2017

A.
Equal to Earth's radius
B.
Half of Earth's radius
C.
Double Earth's radius
D.
One-fourth of Earth's radius
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ANSWER :
A. Equal to Earth's radius
14.
The orbital velocity of a satellite near Earth's surface is approximately:
A.
5 km/s
B.
11.2 km/s
C.
7.9 km/s
D.
15 km/s
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ANSWER :
C. 7.9 km/s
15.
A satellite in a higher orbit will have:
A.
The same velocity as a lower orbit
B.
Higher orbital velocity
C.
Lower orbital velocity
D.
Zero velocity
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ANSWER :
C. Lower orbital velocity
16.
Which of the following is true for a geostationary satellite?
A.
It orbits with the same angular speed as the Earth
B.
It orbits the Earth once a day
C.
It is stationary relative to a point on the Earth's surface
D.
All of the above
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ANSWER :
D. All of the above
17.
The kinetic energy of a satellite in orbit is:
A.
Equal to its potential energy
B.
Half of its potential energy
C.
Twice its potential energy
D.
Zero
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ANSWER :
B. Half of its potential energy
18.
The total energy of a satellite in a stable circular orbit is:
A.
Always positive
B.
Always negative
C.
Zero
D.
Can be positive or negative
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ANSWER :
B. Always negative