Dwarf Planets and Exoplanet Detection Quiz

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MasterfulTaylor
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How can we detect exoplanets indirectly?

By measuring a star's position in the sky

What process allows nuclear energy to escape the sun?

Gravitational equilibrium

What prevents the pressure buildup in a contracting gas cloud during star formation?

Conversion of thermal energy into infrared and radio photons

What causes solar flares on the Sun?

<p>Twisting of magnetic field lines</p> Signup and view all the answers

What characteristic defines a star being on the main sequence?

<p>It is fusing hydrogen into helium in its core</p> Signup and view all the answers

How can we measure exoplanets' atmospheric properties?

<p>By observing gaps, waves, and ripples in dusty gas disks around stars</p> Signup and view all the answers

What is a common characteristic of comets in the Oort cloud?

<p>They have random tilts and eccentricities.</p> Signup and view all the answers

Why do asteroids beyond Jupiter's orbit appear to be few?

<p>Ice forms outside the solar system, affecting asteroid distribution.</p> Signup and view all the answers

What distinguishes the tail of a comet?

<p>The plasma tail is driven by sunlight and solar wind.</p> Signup and view all the answers

Where do most observed asteroids reside in the solar system?

<p>In the asteroid belt between Mars and Jupiter.</p> Signup and view all the answers

What stops Pluto from being classified as a planet?

<p>Its small size compared to other celestial bodies.</p> Signup and view all the answers

What plays a role in shaping comets' tails?

<p>Plasma tail pushed by sunlight, dust tail pushed by photons.</p> Signup and view all the answers

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