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Asteroid belt between mars and jupiter Meteors shooting stars tiny dust particles or grains less than a centimeter in size occur when asteroid crosses earths orbit Meteorite a piece of meteor that survives atmospheric entry Jupiter less dense but 300x the size of earth small ring system Great red spot giant storm larger than earth that has lasted for 300 years Jupiter's moons more 50 moons Io, europa, ganymede, callisto Terrestrial planets Mercury, Ve...

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• 17 páginas •
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subido 2026

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ASTRO • ASTRO

ASTRO 101 EXAM 1. QUESTIONS WITH 100% CORRECT ANSWERS

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Local Group The group of about 40 galaxies to which the Milky Way Galaxy belongs. Galaxy Clusters A collection of a few dozen or more galaxies bound together by gravity; smaller collections of galaxies are simply called groups. Superclusters The largest known structures in the universe, consisting of many clusters of galaxies, groups of galaxies, and individual galaxies. Observable Universe The portion of the entire universe that can be seen from Earth, at least in principle. ...

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• 25 páginas •
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subido 2026

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ASTRO • ASTRO

ASTRO 101 EXAM 1. QUESTIONS WITH 100% CORRECT ANSWERS

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Two Laws of Thermal Radiation 1) (Stefan-Boltzmann law) Each square meter of a hotter object's surface emits more light at all wavelengths 2) (Wien's Law) Hotter objects emit photos with higher average energy. Magnification the ratio of an object's image size to its real size; can blur images if too high or too low Resolution of a telescope amount of detail a telescope allows us to see; the smallest angle over which we can tell that two dots (or two stars) are distinct ...

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ASTRO • ASTRO

ASTRO 101 EXAM 1. QUESTIONS WITH 100% CORRECT ANSWERS.

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The amount of light that a telescope gathers is proportional to the square of its objective diameter. The two kinds of electromagnetic radiation that can easily be observed through the Earth's atmosphere are visible (optical) and radio. Emission spectrum is best described by which of the following? Only a few, separate colors A star's surface temperature is most accurately determined from: its color We can determine the chemical composition of an object most accurate...

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ASTRO • ASTRO

ASTRO 101 EXAM 1. QUESTIONS WITH 100% CORRECT ANSWERS

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What happens when the earth blocks the sun's light from the moon lunar eclipse What phase is the moon in during a total lunar eclipse? Red moon lunar eclipse, must be a full moon, this eclipse is visible to the entire night side of earth Compared to the direction the sun rotates, most of the planets and their moons rotate in the same direction Density math problem Object A has density p1, object has the same shape and dimensions, but is 3x as massive. Object b ...

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ASTRO • ASTRO

ASTRO 101 EXAM 1. QUESTIONS WITH 100% CORRECT ANSWERS

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Two stars have the same temperature, but one has twice the diameter as the other. Which star is more luminous? What is not true about the motions of the Moon? Newton's law of gravity stats that the force of attraction between two objects F is related to how the distance between them, where d is their separation? According to Kepler's third law, the square of an object's period of revolution around the Sun is proportional to what power of its distance to the Sun? ...

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Astronomy • Astronomy

ASTRO 101 EXAM. QUESTIONS WITH 100% CORRECT ANSWERS.

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In this diagram of an accretion disk, there are two particles of dust labeled "A" and "B". A is closer to the black hole, while B is further away. How do their orbital times (time to travel around the black hole) compare? A takes less time to orbit the black hole than B. How does material move inward through the accretion disc? Bits of material collide with each other, losing speed but creating heat that then radiates away. As they lose speed, they fall inward. Imagine ...

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ASTRO 101 • ASTRO 101

FIRST ASTRO 101 EXAM. QUESTIONS WITH 100% CORRECT ANSWERS.

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Photon a particle of light with wavelength and frequency and thus energy Electromagnetic spectrum the range of wavelengths or frequencies over which electromagnetic radiation extends. Gamma rays Electromagnetic waves with the shortest wavelengths and highest frequencies Radio waves Electromagnetic waves with the longest wavelengths and lowest frequencies Emission spectrum a spectrum of the electromagnetic radiation emitted by a source. a gas is heated up to show this ...

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First Astro 101 • First Astro 101

AQA GCSE CHEMISTRY PAPER 1 AND 2 EXAMS. QUESTIONS WITH 100% CORRECT ANSWERS COVERING ALL TOPICS.

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THE PACKAGE CONSISTS OF EXAMS COVERING ALL TOPICS IN AQA CHEMISTRY.

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AQA CHEMISTRY PAPER 1 EXAM. QUESTIONS WITH 100% CORRECT ANSWERS. • Examen
AQA CHEMISTRY PAPER 2 EXAM. QUESTIONS WITH 100% CORRECT ANSWERS • Examen
AQA CHEMISTRY PAPER 2 EXAM. QUESTIONS WITH 100% CORRECT ANSWERS. • Examen
AQA CHEMISTRY PAPER 2 EXAM. QUESTIONS WITH 100% CORRECT ANSWERS. • Examen
AQA CHEMISTRY PAPER 2 EXAM. QUESTIONS WITH 100% CORRECT ANSWERS. • Examen

AQA CHEMISTRY PAPER 2 EXAM. QUESTIONS WITH 100% CORRECT ANSWERS.

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Why do ionic compounds conduct electricity when molten or dissolved? Because the ions are free to move and carry charge. What is covalent bonding? Sharing of electrons between two non-metal atoms. Do covalent compounds conduct electricity? Why? No, because they don't have free charged particles. What is metallic bonding? Positive metal ions surrounded by a sea of delocalized electrons. Why are metals good conductors of electricity? Because the delocalized electrons in...

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subido 2025