Scientists Practice Questions
19 free Scientists practice questions for the Static GK. Tap an option to answer — you get instant feedback, the correct answer, and a detailed explanation for every question.
Who proposed the theory of relativity?
- A Isaac Newton
- B Albert Einstein
- C Galileo Galilei
- D Niels Bohr
Correct answer: Albert Einstein
Albert Einstein proposed the theory of relativity, which revolutionized physics. It explains the relationship between space, time, and gravity.
Which scientist formulated the laws of motion?
- A Galileo Galilei
- B Isaac Newton
- C Albert Einstein
- D Nikola Tesla
Correct answer: Isaac Newton
Isaac Newton formulated the three laws of motion, forming the basis of classical mechanics. These laws describe how objects move.
Who discovered penicillin?
- A Louis Pasteur
- B Frederick Banting
- C Joseph Lister
- D Alexander Fleming
Correct answer: Alexander Fleming
Alexander Fleming discovered penicillin in 1928. It became the first widely used antibiotic.
Which scientist is known for the discovery of radioactivity?
- A Marie Curie
- B Albert Einstein
- C Ernest Rutherford
- D Max Planck
Correct answer: Marie Curie
Marie Curie discovered radioactivity and conducted pioneering research on it. She was the first woman to win a Nobel Prize.
Who developed the theory of evolution by natural selection?
- A Gregor Mendel
- B Herbert Spencer
- C Carl Linnaeus
- D Charles Darwin
Correct answer: Charles Darwin
Charles Darwin proposed the theory of evolution by natural selection. His work explained how species adapt over time.
Who is known as the father of genetics?
- A Gregor Mendel
- B Charles Darwin
- C James Watson
- D Francis Crick
Correct answer: Gregor Mendel
Gregor Mendel is called the father of genetics. His experiments with pea plants revealed basic inheritance patterns.
Which scientist discovered the electron?
- A Ernest Rutherford
- B Niels Bohr
- C James Chadwick
- D J.J. Thomson
Correct answer: J.J. Thomson
J.J. Thomson discovered the electron in 1897. His work contributed to understanding atomic structure.
Who discovered the nucleus of the atom?
- A Niels Bohr
- B J.J. Thomson
- C Erwin Schrödinger
- D Ernest Rutherford
Correct answer: Ernest Rutherford
Ernest Rutherford discovered the atomic nucleus through his gold foil experiment. This changed the model of the atom.
Which scientist is known for inventing the telephone?
- A Thomas Alva Edison
- B Philo Taylor Farnsworth
- C Guglielmo Marconi
- D Alexander Graham Bell
Correct answer: Alexander Graham Bell
Alexander Graham Bell is credited with inventing the telephone. It revolutionized global communication.
Who invented the electric light bulb?
- A Nikola Tesla
- B Michael Faraday
- C James Watt
- D Thomas Edison
Correct answer: Thomas Edison
Thomas Edison is credited with inventing the practical electric light bulb. It transformed modern living.
Which scientist contributed to the development of electromagnetism?
- A Isaac Newton
- B Charles Darwin
- C Michael Faraday
- D Galileo Galilei
Correct answer: Michael Faraday
Michael Faraday made key contributions to electromagnetism and electromagnetic induction. His work led to electric generators.
Who developed the periodic table?
- A Dmitri Mendeleev
- B John Dalton
- C Antoine Lavoisier
- D Niels Bohr
Correct answer: Dmitri Mendeleev
Dmitri Mendeleev created the periodic table, organizing elements by properties. He predicted elements that were later discovered.
Which scientist is known for the uncertainty principle?
- A Niels Bohr
- B Max Planck
- C Werner Heisenberg
- D Erwin Schrödinger
Correct answer: Werner Heisenberg
Werner Heisenberg proposed the uncertainty principle. It states that certain pairs of physical properties cannot be precisely known simultaneously.
Who is known for the laws of planetary motion?
- A Galileo Galilei
- B Isaac Newton
- C Johannes Kepler
- D Nicolaus Copernicus
Correct answer: Johannes Kepler
Johannes Kepler formulated the laws of planetary motion. They describe how planets orbit the sun.
Which scientist proposed the heliocentric model of the solar system?
- A Ptolemy
- B Galileo
- C Copernicus
- D Aristarchus
Correct answer: Copernicus
Nicolaus Copernicus proposed the heliocentric model, placing the Sun at the center of the solar system. This challenged earlier beliefs.
Who is known for discovering X-rays?
- A Wilhelm Röntgen
- B Marie Curie
- C Louis Pasteur
- D Albert Einstein
Correct answer: Wilhelm Röntgen
Wilhelm Röntgen discovered X-rays in 1895. This discovery revolutionized medical imaging.
Which scientist is associated with the theory of quantum mechanics?
- A Max Planck
- B Isaac Newton
- C Charles Darwin
- D James Watt
Correct answer: Max Planck
Max Planck is considered the father of quantum theory. His work introduced the concept of energy quanta.
Who developed the first successful vaccine?
- A Edward Jenner
- B Louis Pasteur
- C Alexander Fleming
- D Robert Koch
Correct answer: Edward Jenner
Edward Jenner developed the first successful vaccine for smallpox. His work laid the foundation for immunology.
Which scientist is known for the discovery of DNA structure along with Watson?
- A Francis Crick
- B Gregor Mendel
- C Louis Pasteur
- D Niels Bohr
Correct answer: Francis Crick
Francis Crick, along with James Watson, discovered the double-helix structure of DNA. This was a major breakthrough in biology.