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?
electromagnetic force
gravitational force
strong nuclear force
weak nuclear force
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Which of the following is an example of a satellite?
moon orbiting Earth
planets orbiting the Sun
earth orbiting the Sun
all of the above
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What shape are the orbits of planets around the Sun often closest to?
circular
hyperbolic
parabolic
elliptical
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Which of the following factors determine the orbital speed of a satellite?
all of the above
gravitational constant
distance between the two objects
mass of the central object
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The orbital period is defined as:
the time it takes for an object to complete one full orbit
the time it takes for an object to complete half an orbit
the time it takes for an object to complete two full orbits
the time it takes for an object to escape the orbit
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Geostationary satellites are designed to orbit Earth:
directly above the equator
in a figure-eight pattern
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
25,000 km
42,227 km
35,786 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.
2.4 km s−1
5.3 km s−1
3.0 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.
5,800 s
5,000 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.
7.7 km s−1
7.0 km s−1
9.1 km s−1
8.5 km s−1
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