Eclipses
Physics ⇒ Earth and Space Physics
Eclipses starts at 7 and continues till grade 12.
QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Eclipses.
How you perform is determined by your score and the time you take.
When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.
See sample questions for grade 12
Calculate the maximum possible duration of totality during a total solar eclipse for an observer on Earth.
Describe the alignment of the Sun, Earth, and Moon during a lunar eclipse.
Describe the difference between a partial and a total solar eclipse.
Describe the role of the ecliptic in the occurrence of eclipses.
During a penumbral lunar eclipse, the Moon passes through which part of Earth's shadow?
During a total lunar eclipse, what color does the Moon typically appear and why?
Explain why it is dangerous to look directly at a solar eclipse without proper eye protection.
Explain why solar eclipses do not occur every new moon.
Explain why the apparent sizes of the Sun and Moon are nearly the same when viewed from Earth.
Explain why the shadow of the Moon during a solar eclipse is much smaller than the shadow of the Earth during a lunar eclipse.
If the diameter of the Moon is 3,474 km and its distance from Earth during a total solar eclipse is 384,400 km, calculate its angular diameter in arcminutes. (Use the formula: angular diameter (radians) = diameter/distance, then convert to arcminutes.)
If the Earth's shadow at the distance of the Moon is about 9,200 km in diameter, and the Moon's diameter is 3,474 km, will the Moon fit entirely within Earth's umbra during a total lunar eclipse?
If the Moon's orbital plane were not tilted relative to the Earth's orbital plane, how often would solar and lunar eclipses occur?
