What was a major limitation of early telescopes used by astronomers?

Astronomy and Satellite Concepts

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Physics
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9th - 10th Grade
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Hard

Patricia Brown
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
They could not be pointed at the moon.
They could only be used during the day.
They were too expensive to produce.
They had to peer through Earth's atmosphere.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What was the first artificial satellite launched into orbit?
Apollo 11
Sputnik 1
Voyager 1
Hubble Space Telescope
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which orbit is closest to Earth and allows satellites to travel around the planet in about two hours?
Low-earth orbit
Medium-earth orbit
Polar orbit
Geostationary orbit
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why do objects in low-earth orbit experience weightlessness?
Because there is no gravity in space.
Because they are in constant freefall.
Because they are too far from Earth.
Because they are moving too slowly.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a significant advantage of geostationary orbit for satellites?
They provide high bandwidth with little time lag.
They remain above the same point on Earth.
They are the cheapest to launch.
They can image Earth's surface very effectively.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a major concern with the increasing number of objects in low-earth orbit?
They might block sunlight from reaching Earth.
They could cause space debris and collisions.
They are too far to communicate with Earth.
They might fall back to Earth too quickly.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which type of orbit is typically used for navigation and communication satellites?
Medium-earth orbit
Geostationary orbit
Polar orbit
Low-earth orbit
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