Chapter-3 Motions of the earth

Explanation:

The term "orbital inclination" can also apply to a satellite's trajectory towards a planet's equator, most frequently the Earth. The inclination of a spacecraft circling another planet, like Mars, will be equal to that planet's equator. Moons that are a planet's natural satellites will also have their inclination recorded against the equatorial line of the planet. For instance, the slope of Crapo, a moon of Jupiter, is 51.4°the earth's axis is inclined by a 66.5° angle with respect to its circular path.

Explanation:

Rotation is the term used to describe how the Earth spins on its centre. Revolution is the term used to describe the Earth's orbital journey around the Sun. An item rotates when it moves around its own centre. However, a revolution is the full rotation of something, such as a different item or centre. When an item rotates, it does so around an internal centre.

Explanation:

A solar year is the length of time it takes for our globe Earth to circle the Sun, or roughly 365.25 days. The number of days in a fiscal year is typically rounded up to 365, or a full year. Every four years or so, we add one day to our schedule to make up for the lost half-day; this is referred to as a leap year. If you were to add up all of the days on a calendar from January to December in a typical year, you would arrive at 365 days. However, every four years or so, February has 29 days rather than 28. There are 366 days in a year, then. It is referred to as a leap year.

Explanation:

The quantity of sunshine each day is the primary distinction between the summer and winter solstices. There are roughly 24 hours of sunshine on the summer solstice and only about 12 hours on the winter solstice. In addition, the summer equinox is milder than the winter one.

Summer Solstice: This occurs when summertime in the Northern Hemisphere and wintertime in the Southern Hemisphere. The Summer Solstice is the name given to the Earth's location on June 21 at that time.

Winter Solstice: This is the time of year when the Northern Hemisphere experiences winter and the Southern Hemisphere experiences summer. The location of the Earth at that moment, on December 22, is known as the Winter Solstice.

Explanation:

A solar equinox occurs when the Sun passes the equator of the Earth, that is, when it is exactly above the equator as opposed to north or south of the equator. The Sun looks to emerge "due east" and set "due west" on the equinox day. Around the dates of 20 March and 23 September of each year, this takes place. A true equinox occurs when the plane of the Earth's equator passes through the geometric centre of the Sun's disk, to be more precise. In other words, this is the point in time when the axis of revolution of the Earth is immediately perpendicular to the line connecting the Sun and Earth, tilting neither towards nor away from the Sun.

Explanation:

The Northern Hemisphere experiences Summer Solstice when the North Pole is tilted towards the Sun, the Southern Hemisphere experiences Winter and Summer Solstices at distinct periods. When the South Hemisphere is inclined towards the Sun, these circumstances are inverted. The Earth is split into two regions and is constantly rotating. Summer is experienced on the side of the Earth that faces the Sun, while winter is felt on the opposite side. As a result, the winter and Summer Solstices occur in the Southern Hemisphere at a distinct period than they do in the Northern Hemisphere.

Explanation:

Due to the Earth's inclination on its own plane, the Poles have six months of day and six months of darkness. This tilt maintains one pole facing the Sun and the other pointing away from it for six consecutive months. This is the underlying cause of the problem. Due to the tilt of the earth's equator, the poles have roughly six months of day and six months of darkness. Each side is tilted towards and away from the sun for roughly six months due to this shift.

Explanation:

The Correct answer is (ii) Revolution. The motion of the earth's core is referred to as rotation. The revolution is the amount of time the planet needs to make one rotation around the Sun. Earth rotates once every year at a pace of roughly 68,000 miles per hour. The ellipse, which is a circular form, is how the planet orbits the sun. The Orbit is the name given to this motion route.

Explanation:

The correct answer is (i) 21st March. December's Fix Only times a year do the tropics receive direct sunlight. The 21st of March and the 23rd of September are two of these days.

Explanation:

The correct answer is (iii) Australia. The northern hemisphere experiences winter in December, while the southern hemisphere experiences summer. Australia is in the southern hemisphere, so in December it is summer there. Christmas, which is observed on December 25, comes during Australia's warmer months.

Explanation:

The correct answer is (ii) Revolution. The earth's rotation is what causes the seasonal cycle. The seasons shift as a result of the earth's revolution, also known as rotation around the Sun. The orbit of the planet describes its precise route of motion. The trajectory does not follow a circle.

Explanation:

A leap year has 366 days.

Reason - There are 365 days in a typical year if you add up all the days on a calendar from January to December. But every four years or so, February has 29 days as opposed to 28. There are 366 days in a year, then. It is referred to as a leap year.

Explanation:

The daily motion of the Earth is rotation.

Reason - Rotation is the name for the daily rotation of the Earth's axis. As seen from the North Pole, the Earth rotates in an easterly or anticlockwise direction. A day is the unit of time during which the Earth revolves once every roughly 24 hours with regard to the Sun.

Explanation:

The Earth travels around the Sun in an elliptical orbit.

Reason - Every 365.25 days, the Earth orbits the Sun in an elliptical, or circular, path. While orbiting the Sun, the Earth itself spins. The Earth rotates on its axis entirely in about 24 hours, or one day. Each portion of the Earth moves towards and away from the Sun's light because of rotation.

Explanation:

The Sun’s rays fall vertically on the Tropic of Cancer on 21st June.

Reason - On June 21st, the sun's beams fall vertically on the tropic of cancer (23.5 degrees North latitude), while on December 21st, they fall vertically on the tropic of Capricorn. (23.5 degree south latitude). Sunlight never descends vertically outside of the tropics. Sun is over the cancer tropics on June 21.

Explanation:

Days are shorter during the winter season.

Reason - Since our shadows are lower in the winter, we are moving closer to the light and the days are growing shorter. Since our shadows are lengthier in the summer, we are moving farther away from the light and the days are lengthening. The Earth spins at an angle of 23.5 degrees with respect to its centre.