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11th Grade Microlensing Quizzes , Questions & Answers

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Spikes in the Data: Detecting Small Exoplanets Quiz

A tiny spike in a sea of light. If a planet is orbiting a "lens" star, it creates an extra little flash of light that reveals its existence. This detecting small exoplanets quiz focuses on finding the tiny signals...

Questions: 20 | Attempts: 11 | Last updated: Feb 20, 2026

Sample Question 1
Why is detecting small exoplanets significantly more difficult than finding gas giants using the transit method?

Small planets move faster

Small planets have higher gravity

Small planets block a much smaller fraction of starlight

Small planets only orbit dim stars

Small planets do not reflect any light

Sample Question 2
To achieve successful earth size planet detection, a telescope must be able to detect a brightness change of approximately 1 part in 10,000.

True

False

Sample Question 3
What characterizes tiny planet signals in a raw light curve?

Large, obvious gaps in data

Sharp, vertical spikes

Fluctuations that are often smaller than the star's natural jitter

Brightness increases

Sudden changes in the star's color

11th Grade Microlensing Quizzes , Questions & Answers

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