1.
How long did the August 2017 "American eclipse" last?
Correct Answer
A. 02m40s
Explanation
The correct answer is 02m40s, which means that the August 2017 "American eclipse" lasted for 2 minutes and 40 seconds.
2.
Was the August 2017 eclipse a total or partial eclipse?
Correct Answer
A. It was a total eclipse
Explanation
The August 2017 eclipse was a total eclipse. A total eclipse occurs when the moon completely blocks the sun, creating a brief period of darkness. In this case, the moon's shadow completely covered the sun's disk, resulting in a total eclipse.
3.
How long can a solar eclipse last for?
Correct Answer
B. A maximum of 7 minutes
Explanation
Solar eclipses can last for a maximum of 7 minutes. During a solar eclipse, the Moon passes between the Earth and the Sun, casting a shadow on the Earth. The duration of a solar eclipse depends on various factors, including the alignment of the Sun, Moon, and Earth. The maximum duration of a solar eclipse is typically around 7 minutes, although most eclipses last for a shorter duration. This limited duration is due to the relative sizes and distances of the Sun, Moon, and Earth, which determine the length of time the Moon can completely block the Sun's light.
4.
How do animals react during periods of the total eclipse?
Correct Answer
B. They act confused and prepare to sleep.
Explanation
During periods of a total eclipse, animals may become confused due to the sudden darkness and disruption in their natural environment. The sudden change in light can disrupt their internal clocks and cause confusion in their behavior. Additionally, some animals may also prepare to sleep during this time as they perceive the darkness as a signal for nighttime. Therefore, the correct answer is that animals act confused and prepare to sleep during periods of a total eclipse.
5.
During a solar eclipse, do temperatures become colder or warmer?
Correct Answer
D. They cool down considerably.
Explanation
During a solar eclipse, temperatures often decrease as the moon blocks sunlight. This phenomenon results in a temporary reduction in heat on Earth's surface. As the sun's rays are partially or fully obscured, less energy reaches the ground, causing a cooling effect. This temperature drop can be noticeable and significant, contributing to cooler conditions during the eclipse event.
6.
How long does it take for daylight to be restored after a solar eclipse?
Correct Answer
A. Up to an hour
Explanation
During a solar eclipse, the Moon passes between the Sun and the Earth, causing a temporary blockage of sunlight. After the eclipse, it takes some time for the Moon to completely move out of the Sun's path, allowing daylight to be fully restored. This process can take up to an hour, as the Moon slowly continues its orbit and moves away from the Sun, gradually revealing more and more sunlight. Therefore, it can be expected that it takes up to an hour for daylight to be restored after a solar eclipse.
7.
When do annular eclipses happen?
Correct Answer
B. When the moon is too far from Earth
Explanation
Annular eclipses occur when the moon is too far from Earth. In this type of eclipse, the moon appears smaller than the sun, causing a ring of sunlight to be visible around the edges of the moon. This happens because the moon's orbit around Earth is elliptical, and when it is at its farthest point from Earth, it does not completely cover the sun during an eclipse.
8.
What could happen to you if you look directly into the sun during a total eclipse?
Correct Answer
B. You could become completely blind.
Explanation
Looking directly into the sun during a total eclipse can cause severe damage to the eyes, including the retina. The intense brightness of the sun can overwhelm the retina, leading to a condition called solar retinopathy. This can result in permanent vision loss or blindness. Therefore, if someone looks directly at the sun during a total eclipse without proper eye protection, they are at risk of becoming completely blind.
9.
How many people were affected by darkness during the total eclipse of August 2017?
Correct Answer
A. 12 millions people.
Explanation
During the total eclipse of August 2017, approximately 12 million people were affected by darkness.
10.
How is the outer realm of the sun called?
Correct Answer
A. Corona
Explanation
The outer realm of the sun is called the corona. The corona is the outermost part of the sun's atmosphere and is visible during a total solar eclipse as a faint, white halo around the darkened sun. It is composed of extremely hot plasma and is much hotter than the sun's surface. The corona is also responsible for the emission of solar winds, which are streams of charged particles that flow into space.