Science (Science) | MCQ Quizzes | Category (S/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: 59
Total Views: 2415
Last Refreshed: 2026-09-18 21:24:00
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 original Ballpoint Pen?
Q1. 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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Q2. What is the normal temperature of human body?
Q2. What is the normal temperature of human body?
Answer: (A) 37°C
Answer: (A) 37°C
Answer: (A) 37°C
Normal body temperature is considered to be 37°C (98.6°F); however, a wide variation is seen. Among normal individuals, mean daily temperature can differ by 0.5°C (0.9°F), and daily variations can be as much as 0.25 to 0.5°C.
Normal body temperature is considered to be 37°C (98.6°F); however, a wide variation is seen. Among normal individuals, mean daily temperature can differ by 0.5°C (0.9°F), and daily variations can be as much as 0.25 to 0.5°C.
Normal body temperature is considered to be 37°C (98.6°F); however, a wide variation is seen. Among normal individuals, mean daily temperature can differ by 0.5°C (0.9°F), and daily variations can be as much as 0.25 to 0.5°C.
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Q3. Who invented the Aeroplane?
Q3. 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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Q4. The moon is an example of which type of object?
Q4. The moon is an example of which type of object?
Answer: (D) Non Luminous
Answer: (D) Non Luminous
Answer: (D) Non Luminous
Non Luminous
Moon is non-luminous. It do not produce light, it shines by reflecting the sunlight falling on it.
Non Luminous Moon is non-luminous. It do not produce light, it shines by reflecting the sunlight falling on it.
Non Luminous Moon is non-luminous. It do not produce light, it shines by reflecting the sunlight falling on it.
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Q5. What is the scientific field dedicated to the study of heavenly bodies, celestial objects, and phenomena originating beyond Earth's atmosphere?
Q5. 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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Q6. Which is responsible for Earth's magnetic field?
Q6. Which is responsible for Earth's magnetic field?
Answer: (B) Outer Core
Answer: (B) Outer Core
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.
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.
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.
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Q7. Who discovered the Rings of Saturn?
Q7. Who discovered the Rings of Saturn?
Answer: (C) Galileo Galilei
Answer: (C) Galileo Galilei
Answer: (C) Galileo Galilei
Galileo Galilei becomes the first to observe Saturn's rings with his 20-power telescope in 1610. He thought the rings were "handles" or large moons on either side of the planet.
Galileo Galilei becomes the first to observe Saturn's rings with his 20-power telescope in 1610. He thought the rings were "handles" or large moons on either side of the planet.
Galileo Galilei becomes the first to observe Saturn's rings with his 20-power telescope in 1610. He thought the rings were "handles" or large moons on either side of the planet.
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Q8. Which among the following elements is a liquid at room temperature?
Q8. 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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Q9. Beyond what distance a normal eye can see objects clearly?
Q9. Beyond what distance a normal eye can see objects clearly?
Answer: (C) 25 cm
Answer: (C) 25 cm
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.
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.
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.
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Q10. Which of the following do not belong to Solar System?
Q10. Which of the following do not belong to Solar System?
Planet, Nebulae, Astroid and Comet
Planet, Nebulae, Astroid and Comet
Planet, Nebulae, Astroid and Comet
Answer: (B) Nebulae
Answer: (B) Nebulae
Answer: (B) Nebulae
Nebulae
Nebulae
Nebulae
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Q11. Tectona grandis Linn is the scientific name of -
Q11. Tectona grandis Linn is the scientific name of -
Answer: (C) Teak
Answer: (C) Teak
Answer: (C) Teak
Teak
Teak
Teak
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Q12. Who was the first woman to win the Nobel Prize in Physics?
Q12. 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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Q13. The earth makes one complete rotation on it's axis in
Q13. The earth makes one complete rotation on it's axis in
Answer: (C) 23 hours 56 minutes
Answer: (C) 23 hours 56 minutes
Answer: (C) 23 hours 56 minutes
23 hours 56 minutes
23 hours 56 minutes
23 hours 56 minutes
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Q14. Which comet does appear after 76 years
Q14. 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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Q15. What is the audible range of frequencies for normal human ears?
Q15. 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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Q16. Which are the main gases present in Sun?
Q16. Which are the main gases present in Sun?
Answer: (A) Hydrogen and Helium
Answer: (A) Hydrogen and Helium
Answer: (A) Hydrogen and Helium
hydrogen (about 70%) and helium (about 28%).
hydrogen (about 70%) and helium (about 28%).
hydrogen (about 70%) and helium (about 28%).
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Q17. Why the sky appears blue?
Q17. Why the sky appears blue?
Answer: (C) Dispersion of light
Answer: (C) Dispersion of light
Answer: (C) Dispersion of light
Blue colour of the sky is due to dispersion or scattering of light. The two most common types of matter present in the atmosphere are gaseous nitrogen and oxygen. These particles are most effective in scattering the higher frequency and shorter wavelength portions of the visible light spectrum.
Blue colour of the sky is due to dispersion or scattering of light. The two most common types of matter present in the atmosphere are gaseous nitrogen and oxygen. These particles are most effective in scattering the higher frequency and shorter wavelength portions of the visible light spectrum.
Blue colour of the sky is due to dispersion or scattering of light. The two most common types of matter present in the atmosphere are gaseous nitrogen and oxygen. These particles are most effective in scattering the higher frequency and shorter wavelength portions of the visible light spectrum.
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Q18. Which one of the following is not a member of outer planets
Q18. Which one of the following is not a member of outer planets
Answer: (B) Mars
Answer: (B) Mars
Answer: (B) Mars
Mars
Mars
Mars
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Q19. The SI unit of electric potential difference is
Q19. The SI unit of electric potential difference is
Answer: (B) Voltage
Answer: (B) Voltage
Answer: (B) Voltage
The SI unit of electric Potential difference is VOLTAGE.
The SI unit of electric Potential difference is VOLTAGE.
The SI unit of electric Potential difference is VOLTAGE.
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Q20. Identify the normally radioactive material in the following list.
Q20. Identify the normally radioactive material in the following list.
Answer: (A) Plutonium
Answer: (A) Plutonium
Answer: (A) Plutonium
Plutonium is the only radioactive element in the list.
Plutonium is a radioactive, silvery-gray, metallic element with the symbol Pu and atomic number 94. It has a high surface tension and viscosity compared to other metals, and tarnishes when exposed to air. Plutonium is created in a reactor when uranium atoms absorb neutrons, and is a by-product of nuclear power plants. It is the main fuel in fast neutron reactors, and more than one-third of the energy produced in most nuclear power plants comes from plutonium. Plutonium has five common isotopes, each with a different half-life, which is the time it takes to lose half of its radioactivity
Plutonium is the only radioactive element in the list. Plutonium is a radioactive, silvery-gray, metallic element with the symbol Pu and atomic number 94. It has a high surface tension and viscosity compared to other metals, and tarnishes when exposed to air. Plutonium is created in a reactor when uranium atoms absorb neutrons, and is a by-product of nuclear power plants. It is the main fuel in fast neutron reactors, and more than one-third of the energy produced in most nuclear power plants comes from plutonium. Plutonium has five common isotopes, each with a different half-life, which is the time it takes to lose half of its radioactivity
Plutonium is the only radioactive element in the list. Plutonium is a radioactive, silvery-gray, metallic element with the symbol Pu and atomic number 94. It has a high surface tension and viscosity compared to other metals, and tarnishes when exposed to air. Plutonium is created in a reactor when uranium atoms absorb neutrons, and is a by-product of nuclear power plants. It is the main fuel in fast neutron reactors, and more than one-third of the energy produced in most nuclear power plants comes from plutonium. Plutonium has five common isotopes, each with a different half-life, which is the time it takes to lose half of its radioactivity
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