Astronomy 1010

Star correct answers A large, glowing ball of gas/plasma (mostly hydrogen and helium) that generates heat and light through nuclear fusion (the sun included) The Solar System correct answers The system of planets and smaller objects that orbit a star or stars. A Galaxy correct answers Large co...

If the Sun suddenly exploded, how soon after the explosion would we know about it? correct answers a little more than 8 minutes If a star exploded in the Andromeda Galaxy, how long would it take that information to reach Earth? correct answers 2.5 million years Explain how the word theory is u...

celestial sphere correct answers imaginary sphere surrounding Earth to which all objects in the sky were once considered to be attached celestial equator correct answers the projection of Earth's equator onto the celestial sphere celestial pole correct answers projection of Earth's North or ...

8 minutes correct answers HW Question: If the Sun suddenly exploded, how soon after the explosion would we know about it? two million years correct answers HW Question: If a star exploded in the Andromeda Galaxy, how long would it take that information to reach Earth? In everyday languag...

What is the Earth-Sun distance compared to the Earth-Moon distance? correct answers 400x What is the speed of light? correct answers 300,000 km/s What is a light-year? correct answers The distance light travels in one year How long does it take light to travel around the Earth? correct answ...

15 days correct answers If a solar eclipse occurs today, when might you have a chance to see a lunar eclipse? at the southern horizon correct answers If you are at the Earth's equator, where is the south celestial pole? 39 degrees correct answers If you are at a latitude of 39 degrees north, ...

A _____ is a new idea that can be tested by experimentation and evidence; the more experiments and evidence which agree with the idea, the more confidence we have that this idea is a good description of the natural world. If any piece of evidence or experimental result disagrees with the idea, the i...

refraction correct answers The bending of a light wave as it passes at an angle from one medium to another. diffraction correct answers The bending of a light wave as it moves around an obstacle or passes through a narrow opening. interference correct answers The interaction between two light ...

Implications of how the Solar System may have formed correct answers -All planets orbit the Sun in a roughly flat plane -The orbits of the outer planets (those most distant from the Sun) are spaced farther apart from one another than the orbits of the inner planets -All planets orbit the Sun in th...

Astronomy correct answers Patterns among the stars Sun correct answers - An ordinary, middle-aged star, more massive and luminous than some stars but less massive and luminous than others - Only extraordinary because of its importance to us within our solar system Solar System correct answers...

Star correct answers large glowing ball of gas that generates heat and light through nuclear fusion Planet correct answers a moderately large object that orbits a star, it shines by reflected light, planets may be rocky, icy or gaseous in composition Moon (satellite) correct answers an object ...

The Andromeda Galaxy is faintly visible to the naked eye. When you look at the Andromeda Galaxy, the retina of your eye is absorbing light that has traveled through space for ______ to reach you. correct answers about 2 ½ million years Suppose that someone in the Andromeda galaxy had a super-tel...

If you lined up __________ Earths side-by-side, they would fit across the diameter of the Sun. The volume of the Sun is about ____________ times larger than the volume of the Earth. correct answers 109 / 1,300,000 Place the following chemical elements into the correct order of their abundance (fr...

Why is the sky blue? correct answers the air scatters blue light from the Sun What color is the sky on the Moon or the planet Mercury, where there is no air at all? correct answers black Why do the Sun and Moon look redder when they are closer to the horizon (that is, "why are sunsets red")?...