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(AST)Moon,Sun,Earth
| Question | Answer |
|---|---|
| What does NCQGF help do? | remember the moon phases (new moon, crescent, quarter, gibbous, full moon) reverse to get the upper half. |
| Is waxing on the bottom and waning on the top? | yes |
| What causes the phases of the Moon? | the direction that sunlight hits the Moon our angle/perspective from Earth |
| The Moon changes shape. True or False? | no |
| Does time and perspective change? | yes |
| What also causes the phases of the Moon? | the positions of the Moon, Earth, and Sun |
| The Moon revolves around Earth and rotates on its axis about once every... | 27.3 days |
| What affects how often we see solar and lunar eclipses? | the Moon's orbit tilted at 5 degrees |
| Do eclipses happen when the "Earth-Sun plane" crosses with the Moon's orbit at a node? | yes |
| What are the 2 types of eclipses? | solar and lunar |
| How does a solar eclipse happen? | when the Moon's shadow is directed on Earth |
| How does a lunar eclipse happen? | if the Moon passes into the Earth's shadow |
| Can a solar and lunar eclipse be total/partial based on if we're in the umbra or penumbra? | yes |
| What is the corona? | the Sun's glowing atmosphere made of hot gas and plasma |
| What does the sky look like on a lunar eclipse? | a red moon |
| Do red wavelengths from sunlight making it through the atmosphere make the moon red? | yes |
| When does a total lunar eclipse happen? | every 2 years |
| Why don't eclipses happen every month? | the Moon's orbit, which is relative to the Earth's orbit around the Sun, is faraway and tilted by 5 degrees. |
| Does the Moon pass above or below the Earth? | yes |
| If the orbital plane of the Moon weren't tilted, would the Earth be under a total solar eclipse every new moon and a lunar eclipse every full moon? | yes |
| What is tidal locking? | refers to a body with the same rotational period as its orbital period around something |
| What does a tidally locked object do, such as the Moon? | rotates around its axis exactly once during its orbit around a planet or star |
| Why do we see the same side of the Moon from Earth? | The Moon rotates once on its axis each time it orbits Earth |
| What are tides? | the ride and fall of the ocean's water every 12.5 hours, caused by different parts of the Earth that the Moon pulls |
| What are Earth's tides caused by? | the Moon/gravity |
| How does the Moon's gravitational pull affect the tides? | enlargens, bulges, or protrudes them |
| Is the Moon's influence on Earth's tides stronger than the Sun because it's closer? | yes |
| How does the Moon pulls water toward the point on Earth's surface that's closest? | gravity |
| How many tides happen a day? | 2 high and 2 low |
| When the Moon, Earth, and Sun are lined up twice a month (in a new or full moon), what do the Sun and Moon's gravity produce? | spring tides (the highest tides) |
| When the gravity of the Sun and Moon are at a right angle to each other twice a month (in a first or last quarter moon), what dothey produce? | neap tides (lower tides) |