Science (Science) | MCQ Quizzes | Category (R/R/A)
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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: 2511
Last Refreshed: 2026-11-03 22:12:14
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. By how much degrees the earth is inclined on its own Axis?
Q1. 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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Q2. How many times the Jupiter is bigger than the Earth by diameter?
Q2. 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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Q3. What is the lower fixed point of fahrenheit scale?
Q3. What is the lower fixed point of fahrenheit scale?
Answer: (B) 32°F
Answer: (B) 32°F
Answer: (B) 32°F
The lower fixed point in Fahrenheit scale is 32 degree and upper fixed point in Fahrenheit scale is 212 degree. The difference between the two is 180, hence number of division is 180.
The lower fixed point in Fahrenheit scale is 32 degree and upper fixed point in Fahrenheit scale is 212 degree. The difference between the two is 180, hence number of division is 180.
The lower fixed point in Fahrenheit scale is 32 degree and upper fixed point in Fahrenheit scale is 212 degree. The difference between the two is 180, hence number of division is 180.
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Q4. Exposure to sunlight helps a person improve his health because of
Q4. Exposure to sunlight helps a person improve his health because of
Answer: (D) The ultraviolet rays convert skin oil into Vitamin D
Answer: (D) The ultraviolet rays convert skin oil into Vitamin D
Answer: (D) The ultraviolet rays convert skin oil into Vitamin D
The ultraviolet rays convert skin oil into Vitamin D
The ultraviolet rays convert skin oil into Vitamin D
The ultraviolet rays convert skin oil into Vitamin D
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Q5. Who discovered the Rings of Saturn?
Q5. 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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Q6. who discovered gravity?
Q6. 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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Q7. Who invented the modern Ballpoint Pen?
Q7. Who invented the modern Ballpoint Pen?
Answer: (A) Biro Brothers
Answer: (A) Biro Brothers
Answer: (A) Biro Brothers
Biro Brothers
Biro Brothers
Biro Brothers
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Q8. The science dealing with X-rays and other high-energy radiation, especially for the diagnosis and treatment of disease.
Q8. The science dealing with X-rays and other high-energy radiation, especially for the diagnosis and treatment of disease.
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: (D) radiology
Answer: (D) radiology
Answer: (D) radiology
Substitute Word: radiology.
Radiology encompasses the medical use of imaging techniques such as X-rays, CT scans, MRI scans, Ultrasound, etc.
Substitute Word: radiology. Radiology encompasses the medical use of imaging techniques such as X-rays, CT scans, MRI scans, Ultrasound, etc.
Substitute Word: radiology. Radiology encompasses the medical use of imaging techniques such as X-rays, CT scans, MRI scans, Ultrasound, etc.
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Q9. Who invented the Aeroplane?
Q9. 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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Q10. The path of Halley's Comet in its orbit around the sun is
Q10. The path of Halley's Comet in its orbit around the sun is
Answer: (C) Elliptical
Answer: (C) Elliptical
Answer: (C) Elliptical
Elliptical
Elliptical
Elliptical
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Q11. What is the audible range of frequencies for normal human ears?
Q11. 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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Q12. The SI unit of electric potential difference is
Q12. 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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Q13. Which planet is also referred to a "Dwarf Planet"?
Q13. Which planet is also referred to a "Dwarf Planet"?
Answer: (D) Pluto
Answer: (D) Pluto
Answer: (D) Pluto
Pluto
Pluto
Pluto
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Q14. The speed of light is maximum in
Q14. The speed of light is maximum in
Answer: (D) Vaccum
Answer: (D) Vaccum
Answer: (D) Vaccum
The speed of light is maximum in a vacuum. Vacuum is the least dense medium with no obstruction to the path of light. Its refractive index is equal to unity, hence, the speed of light is maximum in a vacuum.
The speed of light is maximum in a vacuum. Vacuum is the least dense medium with no obstruction to the path of light. Its refractive index is equal to unity, hence, the speed of light is maximum in a vacuum.
The speed of light is maximum in a vacuum. Vacuum is the least dense medium with no obstruction to the path of light. Its refractive index is equal to unity, hence, the speed of light is maximum in a vacuum.
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Q15. Which is responsible for Earth's magnetic field?
Q15. 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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Q16. Who invented the original Ballpoint Pen?
Q16. 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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Q17. Which of the following do not belong to Solar System?
Q17. 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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Q18. What is the Distance between the Earth and the Moon?
Q18. 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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Q19. What type of lens is used in a magnifying glass?
Q19. 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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Q20. What is baking soda?
Q20. What is baking soda?
Answer: (C) Sodium Bicarbonate
Answer: (C) Sodium Bicarbonate
Answer: (C) Sodium Bicarbonate
Sodium Bicarbonate.
Chemical formula of Baking soda - NaHCO3
Sodium Bicarbonate.
Chemical formula of Baking soda - NaHCO3
Chemical formula of Baking soda - NaHCO3
Sodium Bicarbonate.
Chemical formula of Baking soda - NaHCO3
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