Sun, Moon & Eclipses
Questions and Answers
- 1.
The moon revolves around the Earth every________ days?
- A.
23.7
- B.
27.3
- C.
32.7
- D.
27.5
Correct Answer
B. 27.3Explanation
The correct answer is 27.3. The moon takes approximately 27.3 days to complete one revolution around the Earth. This period is known as the sidereal month. It is slightly shorter than the length of a calendar month because during this time, the Earth has also moved in its orbit around the Sun. The moon's revolution around the Earth is responsible for the phases of the moon that we observe from Earth.Rate this question:
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- 2.
The __________ is made up of 70% hydrogen and 28% helium.
- A.
Moon
- B.
Mars
- C.
Earth
- D.
Sun
Correct Answer
D. SunExplanation
The Sun is made up of 70% hydrogen and 28% helium. This composition is due to the nuclear fusion reactions that occur in its core, where hydrogen atoms combine to form helium, releasing a tremendous amount of energy in the process. These reactions are what power the Sun and generate its heat and light.Rate this question:
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- 3.
What was the name of first spacecraft launched by NASA?
- A.
Mariner 2
- B.
Aryabhata
- C.
Pioneer 1
- D.
Sputnik
Correct Answer
C. Pioneer 1Explanation
Pioneer 1 was the name of the first spacecraft launched by NASA. It was launched on October 11, 1958, with the goal of reaching the Moon. However, due to a malfunction in the upper stage of the rocket, Pioneer 1 did not achieve its intended trajectory and instead reached a maximum altitude of 113,854 kilometers before falling back to Earth. Although it did not achieve its objective, Pioneer 1 paved the way for future space exploration missions.Rate this question:
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- 4.
The temperature at the centre of the Sun reaches about _____ degree Celsius?
- A.
15 billion
- B.
15 thousands
- C.
20 thousands
- D.
25 billion
Correct Answer
A. 15 billionExplanation
The temperature at the center of the Sun reaches about 15 billion degrees Celsius. This extremely high temperature is due to the intense gravitational pressure and nuclear fusion reactions happening in the core of the Sun. These reactions release a tremendous amount of energy and heat, causing the center of the Sun to be incredibly hot.Rate this question:
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- 5.
There are _________ planets that exist in our solar system
- A.
9
- B.
8
- C.
11
- D.
7
Correct Answer
B. 8Explanation
There are 8 planets that exist in our solar system. This is based on the definition of a planet, which includes the eight celestial bodies that orbit the Sun, namely Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. Pluto, which was previously considered the ninth planet, was reclassified as a dwarf planet in 2006. Therefore, the correct answer is 8.Rate this question:
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- 6.
The Moon Appears same size of the sun because,
- A.
It is far from Earth than the Sun
- B.
It is much closer to earth than the Sun
- C.
It is closer to sun than earth
- D.
Sun is closer to the Earth
Correct Answer
B. It is much closer to earth than the SunExplanation
The Moon appears the same size as the Sun because it is much closer to Earth than the Sun. Although the Sun is much larger than the Moon, its distance from Earth makes it appear smaller in the sky. The Moon's proximity to Earth allows it to appear larger and cover the Sun during a solar eclipse, creating the illusion that they are the same size.Rate this question:
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- 7.
The Sun made up of ________________ gas (about 70%)
- A.
Helium
- B.
Oxygen
- C.
Hydrogen
- D.
Nitrogen
Correct Answer
C. HydrogenExplanation
The Sun is primarily made up of hydrogen gas, which accounts for about 70% of its composition. Hydrogen is the most abundant element in the universe and is crucial for the Sun's energy production through nuclear fusion. This process involves the conversion of hydrogen atoms into helium, which releases vast amounts of energy in the form of light and heat. Therefore, the high concentration of hydrogen in the Sun is essential for its role as a powerful source of energy.Rate this question:
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- 8.
The Sun emits huge amount of energy in the form of _____________________.
- A.
Air and Light
- B.
Light and Heat
- C.
Heat and Gas
- D.
Heat and Sound
Correct Answer
B. Light and HeatExplanation
The Sun emits a tremendous amount of energy in the form of light and heat. The light energy radiated by the Sun allows us to see and provides energy for photosynthesis, while the heat energy warms our planet and sustains life.Rate this question:
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- 9.
The energy that we get from the Sun is known as __________________.
- A.
Solar Energy
- B.
Sound Energy
- C.
Hydro Energy
- D.
Gravitational Energy
Correct Answer
A. Solar EnergyExplanation
Solar energy refers to the energy that we receive from the Sun. It is a renewable and abundant source of energy that can be harnessed through various technologies such as solar panels and solar thermal systems. Solar energy is converted into electricity or used for heating and lighting purposes. It plays a crucial role in reducing our dependence on fossil fuels and mitigating climate change.Rate this question:
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- 10.
How old the Sun is ___________.
- A.
Nearly 4.6 Trillion
- B.
Nearly 1.1 Billion
- C.
Nearly 4.6 Billion
- D.
Nearly 6.4 Billion
Correct Answer
C. Nearly 4.6 BillionExplanation
The age of the Sun is estimated to be nearly 4.6 billion years. This estimation is based on scientific evidence, such as the age of the oldest rocks on Earth and the ages of meteorites. By studying the radioactive decay of certain elements and the composition of these rocks and meteorites, scientists have determined that the Sun and the rest of the solar system formed around the same time. Therefore, the age of the Sun is believed to be approximately 4.6 billion years.Rate this question:
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- 11.
Which is the Natural Satellite of the Earth?
- A.
Moon
- B.
Sun
- C.
Mars
- D.
Jupiter
Correct Answer
A. MoonExplanation
The natural satellite of the Earth is the Moon. It is the only celestial body that orbits around our planet. The Moon has been a subject of fascination for humans for centuries and plays a significant role in various aspects of Earth, such as tides and the stability of our planet's rotation.Rate this question:
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- 12.
The side of the Moon facing Earth receives no sunlight and hence, cannot be seen from the Earth. This phase is called _________________
- A.
Gibbous Moon
- B.
New Moon
- C.
Crescent Moon
- D.
Half Moon
Correct Answer
B. New MoonExplanation
During a New Moon phase, the side of the Moon facing Earth is not illuminated by sunlight, making it appear dark. This is because the Moon is positioned between the Earth and the Sun, causing the Sun's light to be blocked from reaching the side of the Moon facing us. As a result, the New Moon phase is characterized by the Moon being invisible or not visible from Earth.Rate this question:
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- 13.
A small portion of the illuminated side facing earth is called____________
- A.
Half Moon
- B.
Crescent Moon
- C.
New Moon
- D.
Gibbous Moon
Correct Answer
B. Crescent MoonExplanation
A small portion of the illuminated side facing earth is called the crescent moon. This phase occurs when less than half of the moon is illuminated and visible from earth. The crescent shape is formed by the shadow of the earth partially covering the moon, creating a curved shape resembling a crescent.Rate this question:
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- 14.
Half portion of the illuminated side of the Moon facing towards the Earth is called__________
- A.
Half Moon
- B.
New Moon
- C.
Gibbous Moon
- D.
Crescent Moon
Correct Answer
A. Half MoonExplanation
The half portion of the illuminated side of the Moon facing towards the Earth is called the Half Moon. This term is used to describe the phase when exactly half of the Moon's visible surface is illuminated by sunlight. During this phase, the Moon appears as a semicircle in the sky.Rate this question:
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- 15.
Large portion of the illuminated side of Moon is facing towards the Earth is called _____________
- A.
Half Moon
- B.
Gibbous Moon
- C.
New Moon
- D.
Crescent Moon
Correct Answer
B. Gibbous MoonExplanation
A gibbous moon occurs when more than half, but less than a full, portion of the illuminated side of the moon is visible from Earth. This means that a large portion of the illuminated side of the moon is facing towards the Earth. The term "gibbous" comes from the Latin word "gibbosus," meaning humpbacked, which describes the shape of the moon during this phase.Rate this question:
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- 16.
Entire portion of the illuminated side of the Moon faces towards the Earth, we can see the ____________
- A.
Large Portion of the Moon
- B.
Half portion of the Moon
- C.
Perfectly Round Moon
- D.
Small portion of the Moon
Correct Answer
C. Perfectly Round MoonExplanation
When the entire portion of the illuminated side of the Moon faces towards the Earth, it appears as a perfectly round moon. This occurs during a full moon phase when the Sun, Earth, and Moon are aligned in a straight line. The sunlight fully illuminates the side of the Moon facing the Earth, making it appear as a complete circle.Rate this question:
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- 17.
The time period between two full moon is about ____________
- A.
Two Month
- B.
29.5days
- C.
20days
- D.
40days
Correct Answer
A. Two MonthExplanation
The time period between two full moons is approximately two months. This is because the lunar cycle, which is the time it takes for the moon to go through all of its phases, including full moon, is about 29.5 days. Since there are 12 months in a year, it follows that the time period between two full moons is approximately two months.Rate this question:
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- 18.
Percentage of Hydrogen present in the Sun________
Correct Answer
70Explanation
The answer to the question is 70 because the percentage of hydrogen present in the Sun is approximately 70%. Hydrogen is the most abundant element in the Sun, making up about 70% of its total mass. This is due to the Sun's composition and the nuclear fusion reactions that occur in its core, where hydrogen atoms combine to form helium and release energy.Rate this question:
- 19.
Gravity on the moon as compared to the Earth________
Correct Answer
1/6th, 1/6, six times less on the Moon than the EarthExplanation
The gravity on the moon is 1/6th or 1/6 of the gravity on Earth. This means that the gravitational force exerted by the moon on an object is six times less than the gravitational force exerted by the Earth on the same object.Rate this question:
- 20.
________ is the first spacecraft to land on the Moon
Correct Answer
Apollo 11Explanation
Apollo 11 is the first spacecraft to land on the Moon. This historic mission took place in 1969 and was led by astronauts Neil Armstrong, Buzz Aldrin, and Michael Collins. The Apollo 11 spacecraft successfully landed on the lunar surface on July 20, 1969, with Neil Armstrong becoming the first person to set foot on the Moon. This monumental achievement marked a significant milestone in human space exploration and is considered one of the greatest accomplishments in history.Rate this question:
- 21.
What are the Phases of Moon
- A.
Full Moon
- B.
New Moon
- C.
Half Moon
- D.
Crescent Moon
- E.
All of the above
Correct Answer
E. All of the aboveExplanation
The phases of the moon refer to the different shapes of the moon as seen from Earth throughout its monthly orbit. The full moon occurs when the moon is fully illuminated and appears as a complete circle. The new moon occurs when the moon is not visible from Earth because it is between the Earth and the sun. The half moon, also known as the first quarter or third quarter moon, occurs when half of the moon is visible from Earth. The crescent moon occurs when a small, curved portion of the moon is visible. Therefore, all of the given options represent different phases of the moon.Rate this question:
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- 22.
When large portion of illuminated side of the moon is facing towards the Earth, we can see a large potion of the Moon from the Earth.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
When a large portion of the illuminated side of the moon is facing towards the Earth, it means that the moon is in a phase called "full moon." During a full moon, the entire face of the moon that is visible from Earth is lit up by the sun, making it appear as a complete circle. Therefore, it is true that when a large portion of the illuminated side of the moon is facing towards the Earth, we can see a large portion of the moon from the Earth.Rate this question:
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- 23.
What are two types of eclipses________
Correct Answer
Solar and Lunar, Solar Lunar, Lunar and Solar, Solar Eclipse and Lunar EclipseExplanation
The correct answer is Solar and Lunar. This is because there are two main types of eclipses: solar eclipses and lunar eclipses. A solar eclipse occurs when the Moon passes between the Sun and the Earth, blocking the sunlight and casting a shadow on the Earth. On the other hand, a lunar eclipse occurs when the Earth passes between the Sun and the Moon, causing the Earth's shadow to fall on the Moon. Therefore, the answer options Solar and Lunar, Solar Lunar, Lunar and Solar, and Solar Eclipse and Lunar Eclipse all refer to the two types of eclipses.Rate this question:
- 24.
Which one do you like?
- A.
Option 1
- B.
Option 2
- C.
Option 3
- D.
Option 4
Correct Answer
A. Option 1 -
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Mar 17, 2023Quiz Edited by
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Jul 30, 2020Quiz Created by
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