Science (Science) | MCQ Quizzes | Category (R/R/M)
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Science is a rigorous, systematic endeavor that builds and organizes knowledge in the form of testable explanations and predictions about the world.
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Category UID: 9
Label UID: 33
Category Name: Science
Category Full Name: Science
Category Link/Slug: science
Total Quizzes: 53
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Last Refreshed: 2026-06-20 19:00:10
Category Description: Science is a rigorous, systematic endeavor that builds and organizes knowledge in the form of testable explanations and predictions about the world. Modern science is typically divided into three major branches: natural sciences (e.g., physics, chemistry, and biology), which study the physical world; the social sciences (e.g., economics, psychology, and sociology), which study individuals and societies; and the formal sciences (e.g., logic, mathematics, and theoretical computer science), which study formal systems, governed by axioms and rules.
Q1. Who invented the Aeroplane?
Q1. Who invented the Aeroplane?
Answer: (D) Orville Wright and Wilbur Wright
Answer: (D) Orville Wright and Wilbur Wright
Answer: (D) Orville Wright and Wilbur Wright
Orville Wright and Wilbur Wright.
Wright Brothers invented the Aeroplane in the year 1903.
Orville Wright and Wilbur Wright.
Wright Brothers invented the Aeroplane in the year 1903.
Wright Brothers invented the Aeroplane in the year 1903.
Orville Wright and Wilbur Wright.
Wright Brothers invented the Aeroplane in the year 1903.
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Q2. What is the Distance between the Earth and the Moon?
Q2. What is the Distance between the Earth and the Moon?
Answer: (C) 384,400 KM
Answer: (C) 384,400 KM
Answer: (C) 384,400 KM
384,400 KM.
The average distance between Earth and the Moon is 384,400 kilometers (238,855 miles). This is about 30 times the diameter of Earth. The Moon’s orbit around Earth is elliptical, so the distance between the two bodies varies slightly.
The semi-major axis has a value of 384,399 km (238,854 mi). The time-averaged distance between the centers of Earth and the Moon is 385,000.6 km (239,228.3 mi). The actual distance varies over the course of the orbit of the Moon, from 356,500 km (221,500 mi) at the perigee to 406,700 km (252,700 mi) at apogee, resulting in a differential range of 50,200 km (31,200 mi).
384,400 KM. The average distance between Earth and the Moon is 384,400 kilometers (238,855 miles). This is about 30 times the diameter of Earth. The Moon’s orbit around Earth is elliptical, so the distance between the two bodies varies slightly. The semi-major axis has a value of 384,399 km (238,854 mi). The time-averaged distance between the centers of Earth and the Moon is 385,000.6 km (239,228.3 mi). The actual distance varies over the course of the orbit of the Moon, from 356,500 km (221,500 mi) at the perigee to 406,700 km (252,700 mi) at apogee, resulting in a differential range of 50,200 km (31,200 mi).
384,400 KM. The average distance between Earth and the Moon is 384,400 kilometers (238,855 miles). This is about 30 times the diameter of Earth. The Moon’s orbit around Earth is elliptical, so the distance between the two bodies varies slightly. The semi-major axis has a value of 384,399 km (238,854 mi). The time-averaged distance between the centers of Earth and the Moon is 385,000.6 km (239,228.3 mi). The actual distance varies over the course of the orbit of the Moon, from 356,500 km (221,500 mi) at the perigee to 406,700 km (252,700 mi) at apogee, resulting in a differential range of 50,200 km (31,200 mi).
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Q3. Which among the following elements is a liquid at room temperature?
Q3. Which among the following elements is a liquid at room temperature?
Answer: (A) Mercury
Answer: (A) Mercury
Answer: (A) Mercury
Mercury
Mercury
Mercury
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Q4. What is the scientific field dedicated to the study of heavenly bodies, celestial objects, and phenomena originating beyond Earth's atmosphere?
Q4. What is the scientific field dedicated to the study of heavenly bodies, celestial objects, and phenomena originating beyond Earth's atmosphere?
Answer: (D) Astronomy
Answer: (D) Astronomy
Answer: (D) Astronomy
Astronomy is a natural science that involves the scientific study of celestial objects (such as stars, planets, comets, galaxies, and nebulae), the universe as a whole, and the phenomena that originate beyond Earth's atmosphere. It uses principles of mathematics, physics, and chemistry to understand their origin, evolution, physical and chemical properties, and behavior. While cosmology is a branch of astronomy that focuses on the universe's origin, evolution, and large-scale structure, astronomy encompasses the broader study of all extraterrestrial objects and phenomena.
Astronomy is a natural science that involves the scientific study of celestial objects (such as stars, planets, comets, galaxies, and nebulae), the universe as a whole, and the phenomena that originate beyond Earth's atmosphere. It uses principles of mathematics, physics, and chemistry to understand their origin, evolution, physical and chemical properties, and behavior. While cosmology is a branch of astronomy that focuses on the universe's origin, evolution, and large-scale structure, astronomy encompasses the broader study of all extraterrestrial objects and phenomena.
Astronomy is a natural science that involves the scientific study of celestial objects (such as stars, planets, comets, galaxies, and nebulae), the universe as a whole, and the phenomena that originate beyond Earth's atmosphere. It uses principles of mathematics, physics, and chemistry to understand their origin, evolution, physical and chemical properties, and behavior. While cosmology is a branch of astronomy that focuses on the universe's origin, evolution, and large-scale structure, astronomy encompasses the broader study of all extraterrestrial objects and phenomena.
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Q5. Who invented the original Ballpoint Pen?
Q5. Who invented the original Ballpoint Pen?
Answer: (C) John J. Loud
Answer: (C) John J. Loud
Answer: (C) John J. Loud
John Jacob Loud (November 2, 1844 – August 10, 1916) was an American inventor known for designing the first ballpoint pen.
John Jacob Loud (November 2, 1844 – August 10, 1916) was an American inventor known for designing the first ballpoint pen.
John Jacob Loud (November 2, 1844 – August 10, 1916) was an American inventor known for designing the first ballpoint pen.
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Q6. Indian Institute of science is situated at-
Q6. Indian Institute of science is situated at-
Answer: (B) Bangalore
Answer: (B) Bangalore
Answer: (B) Bangalore
The Indian Institute of Science (IISc) is a public, deemed, research university for higher education and research in science, engineering, design, and management. It is located in the southern Indian city of Bangalore, Karnataka.
The Indian Institute of Science (IISc) is a public, deemed, research university for higher education and research in science, engineering, design, and management. It is located in the southern Indian city of Bangalore, Karnataka.
The Indian Institute of Science (IISc) is a public, deemed, research university for higher education and research in science, engineering, design, and management. It is located in the southern Indian city of Bangalore, Karnataka.
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Q7. Which planet in our solar system is less dense than water?
Q7. Which planet in our solar system is less dense than water?
Answer: (D) Saturn
Answer: (D) Saturn
Answer: (D) Saturn
Saturn
Saturn
Saturn
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Q8. What is the audible range of frequencies for normal human ears?
Q8. What is the audible range of frequencies for normal human ears?
Answer: (B) 20 Hz to 20,000 Hz
Answer: (B) 20 Hz to 20,000 Hz
Answer: (B) 20 Hz to 20,000 Hz
The audible range of an average human ear lies between 20 Hz to 20,000 Hz. Humans cannot hear sounds having frequency less than 20 Hz and greater than 20,000 Hz.
The audible range of an average human ear lies between 20 Hz to 20,000 Hz. Humans cannot hear sounds having frequency less than 20 Hz and greater than 20,000 Hz.
The audible range of an average human ear lies between 20 Hz to 20,000 Hz. Humans cannot hear sounds having frequency less than 20 Hz and greater than 20,000 Hz.
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Q9. The weight of an object on the moon is equal to ___ of its weight on the earth.
Q9. The weight of an object on the moon is equal to ___ of its weight on the earth.
Answer: (D) 1/6
Answer: (D) 1/6
Answer: (D) 1/6
1/6th
The moon's gravitational force is only about 16.6 % of Earth's gravity which means an object would weigh six times less on the moon than they do on Earth.
1/6th The moon's gravitational force is only about 16.6 % of Earth's gravity which means an object would weigh six times less on the moon than they do on Earth.
1/6th The moon's gravitational force is only about 16.6 % of Earth's gravity which means an object would weigh six times less on the moon than they do on Earth.
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Q10. How many times the Jupiter is bigger than the Earth by diameter?
Q10. How many times the Jupiter is bigger than the Earth by diameter?
Answer: (D) 11
Answer: (D) 11
Answer: (D) 11
11
With a radius of 43,440.7 miles (69,911 kilometers), Jupiter is 11 times wider than Earth.
11
With a radius of 43,440.7 miles (69,911 kilometers), Jupiter is 11 times wider than Earth.
With a radius of 43,440.7 miles (69,911 kilometers), Jupiter is 11 times wider than Earth.
11
With a radius of 43,440.7 miles (69,911 kilometers), Jupiter is 11 times wider than Earth.
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Q11. The science or philosophy of law?
Q11. The science or philosophy of law?
What is one word substitution of the phrase?
What is one word substitution of the phrase?
What is one word substitution of the phrase?
Answer: (C) jurisprudence
Answer: (C) jurisprudence
Answer: (C) jurisprudence
Substitute Word: jurisprudence.
Substitute Word: jurisprudence.
Substitute Word: jurisprudence.
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Q12. Which Disease is caused due to deficiency of Iron?
Q12. Which Disease is caused due to deficiency of Iron?
Answer: (D) Anaemia
Answer: (D) Anaemia
Answer: (D) Anaemia
Anemia
Anemia
Anemia
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Q13. By how much degrees the earth is inclined on its own Axis?
Q13. By how much degrees the earth is inclined on its own Axis?
Answer: (C) 23.5
Answer: (C) 23.5
Answer: (C) 23.5
23.5
23.5
23.5
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Q14. Which of the following Indian Economist won Nobel Prize in Economic Science?
Q14. Which of the following Indian Economist won Nobel Prize in Economic Science?
Answer: (D) Amartya Sen
Answer: (D) Amartya Sen
Answer: (D) Amartya Sen
Amartya Sen is the only Indian economist to win the Nobel Memorial Prize in Economic Sciences, which he received in 1998. Sen is known for his work on welfare economics, social choice theory, and development economics. He is also known for his interest in the problems of society's poorest members and his work on the causes of famine.
Amartya Sen is the only Indian economist to win the Nobel Memorial Prize in Economic Sciences, which he received in 1998. Sen is known for his work on welfare economics, social choice theory, and development economics. He is also known for his interest in the problems of society's poorest members and his work on the causes of famine.
Amartya Sen is the only Indian economist to win the Nobel Memorial Prize in Economic Sciences, which he received in 1998. Sen is known for his work on welfare economics, social choice theory, and development economics. He is also known for his interest in the problems of society's poorest members and his work on the causes of famine.
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Q15. What type of lens is used in a magnifying glass?
Q15. What type of lens is used in a magnifying glass?
Answer: (B) Convex
Answer: (B) Convex
Answer: (B) Convex
Convex
Convex
Convex
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Q16. Who was the first woman to win the Nobel Prize in Physics?
Q16. Who was the first woman to win the Nobel Prize in Physics?
Answer: (A) Marie Curie
Answer: (A) Marie Curie
Answer: (A) Marie Curie
Marie Salomea Skłodowska–Curie
She was the first woman to win a Nobel Prize, the first person to win a Nobel Prize twice, and the only person to win a Nobel Prize in two scientific fields. Marie won her 1st Nobel Prize in 1903 in Physics with her husband for their pioneering work developing the theory of "radioactivity" - a term she coined. Marie won her 2nd Nobel Prize in 1911 in Chemistry for her discovery of the elements polonium and radium, using techniques she invented for isolating radioactive isotopes.
Marie Salomea Skłodowska–Curie
She was the first woman to win a Nobel Prize, the first person to win a Nobel Prize twice, and the only person to win a Nobel Prize in two scientific fields. Marie won her 1st Nobel Prize in 1903 in Physics with her husband for their pioneering work developing the theory of "radioactivity" - a term she coined. Marie won her 2nd Nobel Prize in 1911 in Chemistry for her discovery of the elements polonium and radium, using techniques she invented for isolating radioactive isotopes.
She was the first woman to win a Nobel Prize, the first person to win a Nobel Prize twice, and the only person to win a Nobel Prize in two scientific fields. Marie won her 1st Nobel Prize in 1903 in Physics with her husband for their pioneering work developing the theory of "radioactivity" - a term she coined. Marie won her 2nd Nobel Prize in 1911 in Chemistry for her discovery of the elements polonium and radium, using techniques she invented for isolating radioactive isotopes.
Marie Salomea Skłodowska–Curie
She was the first woman to win a Nobel Prize, the first person to win a Nobel Prize twice, and the only person to win a Nobel Prize in two scientific fields. Marie won her 1st Nobel Prize in 1903 in Physics with her husband for their pioneering work developing the theory of "radioactivity" - a term she coined. Marie won her 2nd Nobel Prize in 1911 in Chemistry for her discovery of the elements polonium and radium, using techniques she invented for isolating radioactive isotopes.
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Q17. Which comet does appear after 76 years
Q17. Which comet does appear after 76 years
Answer: (A) Halley's comet
Answer: (A) Halley's comet
Answer: (A) Halley's comet
Halley's Comet
Halley's Comet
Halley's Comet
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Q18. What is the distance between the Sun and the Earth?
Q18. What is the distance between the Sun and the Earth?
Answer: (B) 149,597,870 KM
Answer: (B) 149,597,870 KM
Answer: (B) 149,597,870 KM
149,597,870 KM.
The Earth is at 147,100,000 km at perihelion and 152,000,000 km at aphelion.
The Astronomical Unit or AU is based on the average distance of the Earth from the Sun. The AU became a international standard in 2012 and is defined to be exactly 49,597,870.7 km.
149,597,870 KM. The Earth is at 147,100,000 km at perihelion and 152,000,000 km at aphelion. The Astronomical Unit or AU is based on the average distance of the Earth from the Sun. The AU became a international standard in 2012 and is defined to be exactly 49,597,870.7 km.
149,597,870 KM. The Earth is at 147,100,000 km at perihelion and 152,000,000 km at aphelion. The Astronomical Unit or AU is based on the average distance of the Earth from the Sun. The AU became a international standard in 2012 and is defined to be exactly 49,597,870.7 km.
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Q19. who discovered gravity?
Q19. who discovered gravity?
Answer: (D) Isaac Newton
Answer: (D) Isaac Newton
Answer: (D) Isaac Newton
Far more than just discovering the laws of gravity, Sir Isaac Newton was also responsible for working out many of the principles of visible light and the laws of motion, and contributing to calculus.
Far more than just discovering the laws of gravity, Sir Isaac Newton was also responsible for working out many of the principles of visible light and the laws of motion, and contributing to calculus.
Far more than just discovering the laws of gravity, Sir Isaac Newton was also responsible for working out many of the principles of visible light and the laws of motion, and contributing to calculus.
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Q20. Who invented the Fountain Pen?
Q20. Who invented the Fountain Pen?
Answer: (D) Petrache Poenaru
Answer: (D) Petrache Poenaru
Answer: (D) Petrache Poenaru
The Romanian inventor Petrache Poenaru received a French patent on May 25, 1827, for the invention of a fountain pen with a barrel made from a large swan quill.
The Romanian inventor Petrache Poenaru received a French patent on May 25, 1827, for the invention of a fountain pen with a barrel made from a large swan quill.
The Romanian inventor Petrache Poenaru received a French patent on May 25, 1827, for the invention of a fountain pen with a barrel made from a large swan quill.
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