A satellite in a circular orbit is constantly:
a) Gaining speed
b) Slowing down
c) Moving at a constant speed
d) Changing direction
The velocity of a satellite in orbit depends on:
a) The satellite’s mass
b) The gravitational pull of the Earth
c) The satellite’s radius from the center of the Earth
d) The satellite’s surface area
The orbital speed of a satellite in low Earth orbit is:
a) Constant
b) Decreasing with time
c) Increasing with altitude
d) Dependent on its mass
Which of the following factors does not affect the orbital period of a satellite?
a) Gravitational pull
b) The mass of the satellite
c) The radius of the orbit
d) The altitude of the satellite
The escape velocity for a satellite to leave Earth’s gravitational field is:
a) Independent of the satellite’s mass
b) The same for all satellites
c) Lower for satellites in higher orbits
d) Directly proportional to the satellite’s speed
Which type of orbit do most communication satellites follow?
a) Geostationary orbit
b) Low Earth orbit
c) Polar orbit
d) Elliptical orbit
In a geostationary orbit, a satellite:
a) Orbits at a fixed speed around Earth
b) Remains over the same point on Earth’s surface
c) Orbits at high altitudes
d) Travels at a faster speed than a satellite in low Earth orbit
A satellite in a circular orbit moves:
a) With uniform speed but changing velocity
b) With changing speed but uniform velocity
c) With constant speed and velocity
d) At increasing speed and decreasing velocity
The gravitational force on a satellite is:
a) Zero at high altitudes
b) Proportional to the square of its speed
c) Inversely proportional to the square of its distance from Earth’s center
d) Proportional to the cube of the radius
If a satellite’s altitude is doubled, the force acting on it is:
a) Halved
b) Doubled
c) Quadrupled
d) Reduced to a quarter
The orbital period of a satellite in a circular orbit is:
a) Independent of the satellite’s mass
b) Directly proportional to its altitude
c) Inversely proportional to its velocity
d) Affected by the satellite’s mass
The satellite’s velocity in orbit is:
a) Constant
b) Variable
c) Zero
d) Decreases as the altitude increases
A satellite is said to be in “free fall” because:
a) It is moving at the speed of light
b) It is not affected by gravity
c) It is constantly accelerating towards Earth
d) It experiences the same acceleration as the surrounding space
The acceleration due to gravity at a satellite’s altitude is:
a) The same as at Earth’s surface
b) Decreased with altitude
c) Increased with altitude
d) Zero at all altitudes
What is the relationship between the orbital period and the radius of a satellite’s orbit?
a) The orbital period is directly proportional to the radius
b) The orbital period is inversely proportional to the radius
c) The orbital period does not depend on the radius
d) The orbital period is proportional to the square root of the radius
The escape velocity of a satellite is:
a) The speed needed to stay in orbit
b) The speed required to break free from Earth’s gravity
c) Dependent on the satellite’s mass
d) Equal to the orbital velocity at any altitude
The orbital velocity of a satellite in a circular orbit is determined by:
a) The satellite’s altitude
b) The satellite’s mass
c) The mass of the Earth
d) The gravitational constant
A satellite’s orbital period increases as:
a) Its velocity increases
b) Its altitude decreases
c) Its altitude increases
d) Its mass decreases
Which of the following is true for satellites in low Earth orbit (LEO)?
a) They have a very long orbital period
b) They experience significant air resistance
c) They orbit at a distance of more than 35,786 km
d) They are always in geostationary orbit
The force of gravity on a satellite in orbit:
a) Acts outward from the Earth
b) Provides the centripetal force to keep it in orbit
c) Is zero at all altitudes
d) Only acts when the satellite is in low Earth orbit
In the context of satellites, which of the following does not affect their orbital motion?
a) Mass of the satellite
b) The gravitational pull of the Earth
c) The distance from Earth’s center
d) The velocity of the satellite
Which of the following is required for a satellite to maintain a stable orbit?
a) A strong initial velocity
b) The satellite’s mass
c) Zero acceleration
d) A constant upward force
The speed of a satellite in a circular orbit is determined by:
a) Its orbital radius
b) Its altitude
c) The mass of the satellite
d) The mass of the Earth and its orbital radius
In which orbit do satellites used for weather monitoring typically operate?
a) Low Earth orbit
b) Geosynchronous orbit
c) Medium Earth orbit
d) Polar orbit
If a satellite’s altitude is doubled, its orbital velocity is:
a) Halved
b) Doubled
c) Unchanged
d) Reduced by a factor of four
A satellite’s orbital period increases as its:
a) Altitude decreases
b) Velocity increases
c) Distance from the Earth increases
d) Mass increases
Which of the following orbits is commonly used for communication satellites?
a) Low Earth orbit
b) Medium Earth orbit
c) Geostationary orbit
d) Elliptical orbit
For a satellite to escape Earth’s gravitational field, it must achieve:
a) Orbital velocity
b) Escape velocity
c) Terminal velocity
d) Geostationary velocity
