Question

name: date: directions: complete all four parts of this assignment. read each question carefully and answer in the space provided. use full sentences when asked, and include sketches or diagrams where required. make sure your work is neat and complete. part 1. define the following terms based off the notes ● solstice: ● equinox: ● spring tide: ● neap tide: part 2. answer the following short answer questions in complete sentences. 1. what causes day and night on earth? what causes seasons on earth? 2. when it is summer in the northern hemisphere, what season is it in the southern hemisphere? why? 3. how do the phases of the moon affect the tides? 4. how does barycenter affect the tides?

Explanation:

• Solstice: The solstice is when the sun reaches its most northerly or southerly excursion relative to the celestial equator. It marks the longest and shortest days of the year (summer and winter solstices respectively).
• Equinox: An equinox occurs when the sun is directly above the equator, resulting in nearly equal day - and - night lengths globally. There are spring (vernal) and autumn (autumnal) equinoxes.
• Spring Tide: Spring tides occur when the gravitational forces of the sun and moon align, either during a new moon or full moon. This alignment causes higher high - tides and lower low - tides.
• Neap Tide: Neap tides happen when the sun and moon are at right angles to each other, typically during the first and third quarter moon phases. They result in lower high - tides and higher low - tides compared to spring tides.
• Day and night: Day and night on Earth are caused by the planet's rotation on its axis. One complete rotation takes about 24 hours.
• Seasons: Seasons on Earth are caused by the tilt of the Earth's axis (about 23.5 degrees) as it orbits the sun. This tilt causes different parts of the Earth to receive varying amounts of sunlight throughout the year.
• Northern and Southern Hemisphere seasons: When it is summer in the Northern Hemisphere, it is winter in the Southern Hemisphere. This is because of the Earth's tilt and its position in its orbit around the sun. The hemisphere tilted towards the sun experiences summer, while the other experiences winter.
• Moon phases and tides: During new and full moons, the sun, moon, and Earth are aligned, leading to spring tides with higher high - tides and lower low - tides. During the first and third quarter moons, the sun and moon are at right angles, causing neap tides with less extreme tidal ranges.
• Barycenter and tides: The barycenter is the center of mass between the Earth and the moon. Its position affects the distribution of gravitational forces, influencing the timing and height of tides.

Answer:

• Solstice: The point in the Earth's orbit when the sun reaches its greatest distance from the celestial equator, leading to the longest (summer) or shortest (winter) day of the year.
• Equinox: The time when the sun is directly above the equator, resulting in nearly equal day and night lengths worldwide.
• Spring Tide: A tide that occurs when the sun, moon, and Earth are aligned (new or full moon), causing higher high - tides and lower low - tides.
• Neap Tide: A tide that occurs when the sun and moon are at right angles (first and third quarter moon), resulting in lower high - tides and higher low - tides.
• 1. Day and night are caused by the Earth's rotation on its axis. Seasons are caused by the tilt of the Earth's axis as it orbits the sun.
• 2. When it is summer in the Northern Hemisphere, it is winter in the Southern Hemisphere because of the Earth's tilt and its position in its orbit around the sun.
• 3. During new and full moons, spring tides occur due to the alignment of the sun, moon, and Earth, leading to more extreme tides. During first and third quarter moons, neap tides occur as the sun and moon are at right angles, resulting in less extreme tides.
• 4. The barycenter, the center of mass between the Earth and the moon, affects the distribution of gravitational forces, which in turn influences the timing and height of tides.