Earth-Moon-Sun System Flashcards

The central, darker part of a shadow where light is totally blocked.

The lighter part of a shadow where light is partly blocked.

An occurrence during which the Moon's shadow appears on Earth's surface.

<p>An occurrence during which the Moon moves into Earth's shadow.</p> Signup and view all the answers

<p>The periodic rise and fall of the ocean's surface caused by the gravitational force between Earth and the Moon, and between Earth and the Sun.</p> Signup and view all the answers

<p>The path an object follows as it moves around another object.</p> Signup and view all the answers

<p>The orbit of one object around another object.</p> Signup and view all the answers

<p>The spin of an object around its axis.</p> Signup and view all the answers

<p>When Earth's rotation axis is tilted directly toward or away from the Sun.</p> Signup and view all the answers

<p>When Earth's rotation axis is tilted neither toward nor away from the Sun.</p> Signup and view all the answers

<p>The portion of the Moon or a planet reflecting light as seen from Earth.</p> Signup and view all the answers

<p>Phases of the Moon during which more of the Moon's near side is lit each night.</p> Signup and view all the answers

<p>Phases of the Moon during which less of the Moon's near side is lit each night.</p> Signup and view all the answers

<p>Earth's revolution and rotation.</p> Signup and view all the answers

<p>The Sun's diameter is more than 100 times greater than Earth's diameter and its mass is more than 300,000 times greater.</p> Signup and view all the answers

<p>The pull of the Sun's gravity causes Earth to revolve around the Sun.</p> Signup and view all the answers

<p>It is tilted, always points in the same direction, and the tilt remains consistent.</p> Signup and view all the answers

<p>Regions near the poles receive less energy than regions near the equator.</p> Signup and view all the answers

<p>The tilt of Earth's rotation axis and Earth's motion around the Sun.</p> Signup and view all the answers

<p>Receives more energy from the Sun, temperatures increase, longer daylight hours, Spring and Summer occur.</p> Signup and view all the answers

<p>Receives less solar energy, temperatures decrease, shorter daylight hours, Fall and Winter occur.</p> Signup and view all the answers

<p>Solstice is when Earth's axis is most tilted toward or away from the Sun, equinox is when the axis is neither tilted toward nor away.</p> Signup and view all the answers

<p>The Moon is a solid object about 1.2% of Earth's mass and 27% of Earth's diameter.</p> Signup and view all the answers

<p>Both take 27.3 days and occur simultaneously.</p> Signup and view all the answers

<p>The gravitational pull of Earth on the Moon.</p> Signup and view all the answers

<p>The Moon rotates once on its axis and revolves around Earth in the same amount of time, 29.5 days.</p> Signup and view all the answers

<p>Half of the Moon is always lit up by the Sun.</p> Signup and view all the answers

<p>The sequence of phases that takes 29.5 days to complete.</p> Signup and view all the answers

<p>The right side of the Moon is lit up.</p> Signup and view all the answers

<p>The left side of the Moon is lit up.</p> Signup and view all the answers

<p>In umbra, the light source cannot be seen; in penumbra, it can be partially seen.</p> Signup and view all the answers

<p>The Moon casts a shadow on Earth's surface.</p> Signup and view all the answers

<p>A total solar eclipse is visible within the umbra; a partial solar eclipse is visible in the penumbra.</p> Signup and view all the answers

<p>Solar eclipses only occur during a new moon when Earth and the Sun are on opposite sides of the Moon.</p> Signup and view all the answers

<p>The Earth casts a shadow on the Moon.</p> Signup and view all the answers

<p>A lunar eclipse occurs only during a full moon; total eclipses block the Moon entirely.</p> Signup and view all the answers

<p>Lunar eclipses only occur during a full moon phase, not every month due to orbital tilt.</p> Signup and view all the answers

<p>A solar eclipse occurs when the Moon blocks the Sun; a lunar eclipse occurs when the Earth casts its shadow on the Moon.</p> Signup and view all the answers

<p>The Moon's gravity causes Earth's oceans to rise and fall.</p> Signup and view all the answers

<p>Differences in the strength of the Moon's gravity on opposite sides of Earth.</p> Signup and view all the answers

<p>High tides occur at the tidal bulges.</p> Signup and view all the answers

<p>The Sun's effect on tides is half that of the Moon's due to its distance.</p> Signup and view all the answers

<p>Spring tides occur when the Sun, Earth, and Moon are aligned.</p> Signup and view all the answers

<p>Neap tides occur when the Sun and Moon form a right angle with Earth.</p> Signup and view all the answers