Overall Astronomy

Which statement is true?

• A.  Earth rotates around the sun and revolves on its axis.

• A.  The sun revolves around Earth over a 24-hour time period.

• A.  Earth rotates on its axis, and revolves around the sun.

• A.  Earth revolves around the sun and the moon.

Answer explanation

The correct statement is that Earth rotates on its axis and revolves around the sun. This means it spins in place while also moving in an orbit around the sun, which is the accurate description of Earth's motion.

Tags

NGSS.MS-ESS1-1

What season is letter A?

• Winter

• Summer

• Spring

• Fall

Answer explanation

Letter A corresponds to the season of Summer, which is characterized by warm weather and longer days, making it distinct from Winter, Spring, and Fall.

Tags

NGSS.MS-ESS1-1

When the Northern Hemisphere is pointing towards the sun, what season is the Southern Hemisphere?

• Winter

• Spring

• Fall

• Summer

Answer explanation

When the Northern Hemisphere is tilted towards the sun, it experiences summer. Consequently, the Southern Hemisphere, tilted away from the sun, experiences winter.

Tags

NGSS.MS-ESS1-1

What are the reasons for the seasons?

• Earth's tilt and rotation.

• Earth's rotation and revolution.

• Earth's tilt and revolution.

• Earth's tilt and resolution

Answer explanation

The seasons are caused by Earth's tilt (about 23.5 degrees) and its revolution around the Sun. This tilt leads to varying sunlight intensity and duration throughout the year, creating the different seasons.

Tags

NGSS.MS-ESS1-1

What causes day and night?

• revolution of Earth

• rotation of Earth

• orbit of Earth

• The moon blocks the Sun

Answer explanation

Day and night are caused by the rotation of Earth on its axis. As Earth rotates, different parts face the Sun, creating daylight, while the opposite side experiences night.

Tags

NGSS.MS-ESS1-1

What is earth's revolution?

• When earth orbits around the sun

• When earth bounces

• When the sun spins around the earth

• When the earth spins on it's axis

Answer explanation

Earth's revolution refers to its orbit around the sun, taking approximately 365.25 days to complete one full cycle. This is distinct from spinning on its axis, which causes day and night.

Tags

NGSS.MS-ESS1-1

During an ________, the length of nighttime and daytime are about the same because neither hemisphere is tilted toward the sun.

• equinox

• solstice

• earthquake

• solar eclipse

Answer explanation

During an equinox, the sun is directly above the equator, resulting in nearly equal lengths of day and night. This occurs because neither hemisphere is tilted toward the sun, unlike during a solstice.

Tags

NGSS.MS-ESS1-1

About how long does it take Earth to make one complete rotation on its axis at the equator?

• 12 hours

• 24 hours

• 29.5 days

• 365 days

Answer explanation

Earth takes about 24 hours to complete one rotation on its axis at the equator. This period defines a day, making 24 hours the correct answer, while the other options represent different timeframes.

Why would Florida be warmer on average than other northern locations in the United States?

• Florida is closer to sea level than inland areas

• Sunlight shines more directly on Florida fir more hours each day

• Heat energy is transferred to land because of ocean currents

• Seasonal changes take place later in the year because Florida is close to the equator

Answer explanation

Florida receives more direct sunlight for longer hours due to its proximity to the equator, resulting in warmer average temperatures compared to northern locations.

Tags

NGSS.MS-ESS2-6

Which term describes when the Earth spins on its axis.

• Rotation

• Revolution

• Kepler's Laws

• Precession

Answer explanation

The term 'Rotation' refers to the Earth spinning on its axis, which occurs approximately every 24 hours. 'Revolution' describes the Earth's orbit around the Sun, while 'Kepler's Laws' and 'Precession' relate to different astronomical concepts.