7th Grade Astrolabe Quizzes, Questions & Answers

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Surveying the Sky: The Alidade Instrument Explained

Precision is the difference between being safely on course and being hopelessly lost at sea. Having an alidade instrument explained reveals the genius of simple geometry used to sight distant peaks and stars with lethal...

Questions: 20 | Attempts: 10 | Last updated: Feb 25, 2026

Sample Question 1
What is the primary function of an alidade in astronomy and surveying?

To measure the distance to the Sun

To provide a sighting line for measuring angles

To calculate the weight of a star

To change the color of a telescope lens

To measure the speed of wind

Sample Question 2
An alidade is used to measure "altitude," which in astronomy means the height of an object in degrees above the horizon.

True

False

Sample Question 3
What is the altitude of an object that is sitting exactly on the horizon?

90 degrees

45 degrees

0 degrees

180 degrees

-10 degrees

7th Grade Astrolabe Quizzes, Questions & Answers

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