Science (Science) | MCQ Quizzes | Category (R/R/A)
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2025-08-02 07:24:21
Category UID: 9
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Category Name: Science
Category Full Name: Science
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Total Quizzes: 59
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Last Refreshed: 2025-08-02 07:24:21
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. The weight of an object on the moon is equal to ___ of its weight on the earth.
Q1. The weight of an object on the moon is equal to ___ of its weight on the earth.
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.
Q2. The science concerned with the properties of sound.
Q2. The science concerned with the properties of sound.
What is one word substitution of the phrase?
Answer: (B) Acoustics
Substitute Word: Acoustics. Acoustics deals with the generation, propagation, reception, and control of sound waves.
Q3. What type of lens is used in a magnifying glass?
Q3. What type of lens is used in a magnifying glass?
Answer: (B) Convex
Convex
Q4. Beyond what distance a normal eye can see objects clearly?
Q4. Beyond what distance a normal eye can see objects clearly?
Answer: (C) 25 cm
For a clear vision, the image must be on the retina. The image distance is therefore fixed for clear vision and it equals the distance of retina from eye lens. It is about 25 cm for a grown up person. A person can theoretically have clear vision of an object situated at any large distance from the eye.
Q5. Which planet of the Solar System is the brightest planet?
Q5. Which planet of the Solar System is the brightest planet?
Answer: (C) Venus
Venus can often be seen within a few hours after sunset or before sunrise as the brightest object in the sky (other than the moon). It looks like a very bright star. Venus is the brightest planet in the Solar System.
Q6. The period of one revolution of the Sun around the center of galaxy is called?
Q6. The period of one revolution of the Sun around the center of galaxy is called?
Answer: (D) Cosmic Year
The galactic year, also known as a cosmic year, is the duration of time required for the Sun to orbit once around the center of the Milky Way Galaxy. One galactic year is approximately 230 million Earth years.
Q7. When is National Science Day celebrated?
Q7. When is National Science Day celebrated?
Answer: (D) 28 February
National Science Day is celebrated in India on February 28th each year to mark the discovery of the Raman effect by Indian physicist Sir C. V. Raman on 28 February 1928.
28 February,
National Science Day is celebrated in India on February 28th each year to mark the discovery of the Raman effect by Indian physicist Sir C. V. Raman on 28 February 1928.
Q8. Who invented the Fountain Pen?
Q8. Who invented the Fountain Pen?
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.
Q9. The Science which studies the crust of the earth.
Q9. The Science which studies the crust of the earth.
What is one word substitution of the phrase?
Answer: (D) geology
Substitute Word: geology. Geology is a broad term that encompasses the study of Earth's solid, liquid, and gaseous parts, as well as the processes that shape them. It includes the study of rocks, minerals, fossils, and the history of the planet.
Q10. Indian Institute of science is situated at-
Q10. Indian Institute of science is situated at-
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.
Q11. Which are the main gases present in Sun?
Q11. Which are the main gases present in Sun?
Answer: (A) Hydrogen and Helium
hydrogen (about 70%) and helium (about 28%).
Q12. who discovered gravity?
Q12. who discovered gravity?
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.
Q13. Which planet in our solar system is less dense than water?
Q13. Which planet in our solar system is less dense than water?
Answer: (D) Saturn
Saturn
Q14. What is the scientific field dedicated to the study of heavenly bodies, celestial objects, and phenomena originating beyond Earth's atmosphere?
Q14. What is the scientific field dedicated to the study of heavenly bodies, celestial objects, and phenomena originating beyond Earth's atmosphere?
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.
Q15. Who invented the Aeroplane?
Q15. Who invented the Aeroplane?
Answer: (D) 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.
Q16. Which planet is also referred to a "Dwarf Planet"?
Q16. Which planet is also referred to a "Dwarf Planet"?
Answer: (D) Pluto
Pluto
Q17. Which blood vessel carries blood back to the heart?
Q17. Which blood vessel carries blood back to the heart?
Answer: (C) Vein
Vein
Q18. Tectona grandis Linn is the scientific name of -
Q18. Tectona grandis Linn is the scientific name of -
Answer: (C) Teak
Teak
Q19. Who was the first Nobel Prize winner in Physics?
Q19. Who was the first Nobel Prize winner in Physics?
Answer: (A) Wilhelm Rontgen
Wilhelm Röntgen, on 8 November 1895, produced and detected electromagnetic radiation in a wavelength range known as X-rays or Röntgen rays and got the first Nobel Prize in Physics in 1901.
Wilhelm Conrad Rontgen
Wilhelm Röntgen, on 8 November 1895, produced and detected electromagnetic radiation in a wavelength range known as X-rays or Röntgen rays and got the first Nobel Prize in Physics in 1901.
Q20. Which is responsible for Earth's magnetic field?
Q20. Which is responsible for Earth's magnetic field?
Answer: (B) Outer Core
Outer Core The magnetic field is generated by electric currents due to the motion of convection currents of a mixture of molten iron and nickel in Earth's outer core: these convection currents are caused by heat escaping from the core, a natural process called a geodynamo.