Welcome to the Quiz!
This quiz contains 12 questions from a mix of 1 subtopics.
What is the primary force responsible for maintaining the orbit of a satellite around a larger mass?
weak nuclear force
strong nuclear force
gravitational force
electromagnetic force
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Which of the following is an example of a satellite?
planets orbiting the Sun
all of the above
moon orbiting Earth
earth orbiting the Sun
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What shape are the orbits of planets around the Sun often closest to?
parabolic
elliptical
hyperbolic
circular
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Which of the following factors determine the orbital speed of a satellite?
mass of the central object
distance between the two objects
gravitational constant
all of the above
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The orbital period is defined as:
the time it takes for an object to complete two full orbits
the time it takes for an object to escape the orbit
the time it takes for an object to complete one full orbit
the time it takes for an object to complete half an orbit
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Geostationary satellites are designed to orbit Earth:
in a figure-eight pattern
directly above the equator
in a random pattern
directly above the poles
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Explain how the gravitational force between two objects provides the necessary centripetal force for circular motion.
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Describe the characteristics of geostationary satellites and their applications.
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A geostationary satellite orbits the Earth with a period of 24 hours. Calculate the orbital radius of this satellite. Given: The mass of the Earth is 5.97×1024 kg, and the gravitational constant (G) is 6.67×10−11Nm2kg−2.
30,000 km
42,227 km
35,786 km
25,000 km
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Calculate the velocity of a satellite orbiting Mars at a distance of 9,400 km from the planet's centre. The mass of Mars is 6.42×1023 kg.
5.3 km s−1
3.0 km s−1
2.4 km s−1
2.1 km s−1
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What is the orbital period of a satellite orbiting the Earth at an altitude of 300 km? The Earth's radius is 6,371 km, and its mass is 5.97×1024 kg.
5,000 s
5,800 s
4,800 s
5,400 s
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What is the velocity of a satellite orbiting the Earth at a height of 360 km above the surface? The Earth's mass is 5.97×1024 kg, and its radius is 6,371 km.
7.0 km s−1
7.7 km s−1
9.1 km s−1
8.5 km s−1
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