50 Inventions & Discoveries Quiz Questions and Answers
This page lists 50 real questions from the Quizlino Inventions & Discoveries category, each with four options, the correct answer and, where available, a short explanation. They are arranged from easy to hard, so you can start at the level that suits you. The full category contains 220 questions spread across its levels, so what you see here is a sample to study from, not the whole quiz.
- Cover the answer line, read the question and decide on your option first.
- Check the answer, then read the explanation even if you were right.
- Make a note of the questions you missed and come back to them after a few days.
- When you feel ready, play the timed Inventions & Discoveries to test yourself properly.
Inventions & Discoveries: Easy Questions
Warm-up questions that most players can answer.
Q1. Who is credited with inventing the telephone?
Answer: B. Alexander Graham Bell
Explanation: Bell was awarded the first US patent for the telephone in 1876.
Q2. Who developed the first commercially practical light bulb?
Answer: B. Thomas Edison
Explanation: Edison patented a long-lasting practical incandescent bulb in 1879.
Q3. What did the Wright Brothers invent?
Answer: B. The airplane
Explanation: They achieved the first powered flight in 1903.
Q4. Who discovered penicillin?
Answer: B. Alexander Fleming
Explanation: Fleming discovered penicillin in 1928.
Q5. Who is credited with inventing the World Wide Web?
Answer: C. Tim Berners-Lee
Explanation: Berners-Lee created the Web in 1989 while at CERN.
Q6. Which ancient invention revolutionized transport and machinery?
Answer: B. The wheel
Explanation: The wheel, dating back thousands of years, transformed transport.
Q7. Who invented the printing press with movable type in Europe?
Answer: A. Johannes Gutenberg
Explanation: Gutenberg's press, circa 1440, transformed the spread of knowledge.
Q8. Marie Curie won Nobel Prizes for her discoveries related to what?
Answer: B. Radioactivity
Explanation: Curie pioneered research on radioactivity.
Q9. Who developed the first widely used practical steam engine improvements?
Answer: A. James Watt
Explanation: Watt's improvements made steam engines practical for industry.
Q10. Alexander Fleming's discovery of penicillin led to the development of what?
Answer: B. Antibiotics
Explanation: Penicillin was the first widely used antibiotic.
Q11. Who invented the safety pin in 1849?
Answer: A. Walter Hunt
Explanation: Walter Hunt patented the modern safety pin design.
Q12. Which inventor conceived the Analytical Engine, an early mechanical computer concept?
Answer: A. Charles Babbage
Explanation: Babbage designed the Analytical Engine in the 1830s-40s.
Q13. Who invented the safety elevator with a fail-safe brake, enabling skyscrapers?
Answer: A. Elisha Otis
Explanation: Otis's safety brake made tall buildings practical.
Q14. Which scientist discovered X-rays in 1895?
Answer: A. Wilhelm Rontgen
Explanation: Rontgen discovered X-rays and won the first Nobel Prize in Physics.
Q15. Who developed an early practical incandescent light patent in Britain alongside Edison's work?
Answer: A. Joseph Swan
Explanation: Joseph Swan developed an incandescent lamp around the same time as Edison.
Inventions & Discoveries: Medium Questions
A step up in difficulty, for players who know the basics.
Q16. Which scientist developed the germ theory of disease?
Answer: A. Louis Pasteur
Explanation: Pasteur's germ theory transformed medicine and public health.
Q17. Which inventor's 1938 creation, using xerography, revolutionized document copying?
Answer: A. Chester Carlson
Explanation: Chester Carlson invented the process behind the photocopier.
Q18. Who built the Z3, one of the first programmable computers, in 1941?
Answer: A. Konrad Zuse
Explanation: Konrad Zuse's Z3 was an early fully programmable computer.
Q19. Who developed penicillin into a mass-producible drug alongside Fleming's discovery?
Answer: A. Howard Florey and Ernst Chain
Explanation: Florey and Chain turned Fleming's discovery into a usable medicine.
Q20. Who is credited with inventing the transistor in 1947 at Bell Labs?
Answer: A. Bardeen, Brattain, and Shockley
Explanation: This trio shared the Nobel Prize for inventing the transistor.
Q21. Which inventor created an early fax machine concept in the 1840s?
Answer: A. Alexander Bain
Explanation: Alexander Bain devised an early precursor to the fax machine.
Q22. Which chemist developed the industrial process for synthesizing ammonia, vital to fertilizers?
Answer: A. Fritz Haber
Explanation: The Haber process enabled large-scale ammonia production.
Q23. Who invented the integrated circuit, foundational to modern electronics?
Answer: A. Jack Kilby
Explanation: Jack Kilby's integrated circuit revolutionized electronics.
Q24. Which scientist formulated the laws of motion and universal gravitation?
Answer: A. Isaac Newton
Explanation: Newton's Principia laid out the foundational laws of classical physics.
Q25. Whose research led to the commercial lithium-ion battery, launched by Sony in 1991?
Answer: A. John Goodenough
Explanation: Goodenough's research was key to developing practical lithium-ion batteries.
Q26. Who developed the HTTP protocol and HTML, foundations of the modern web?
Answer: A. Tim Berners-Lee
Explanation: Berners-Lee created the core technologies of the World Wide Web.
Q27. Who developed the inactivated polio vaccine in the 1950s?
Answer: A. Jonas Salk
Explanation: Salk's vaccine was a major milestone in fighting polio.
Q28. Which scientist pioneered radiation research and its use in early cancer therapy?
Answer: A. Marie Curie
Explanation: Curie's work laid groundwork for radiation-based treatments.
Q29. Who independently developed the jet engine in the United Kingdom in the 1930s?
Answer: A. Frank Whittle
Explanation: Frank Whittle patented an early practical jet engine design.
Q30. Who discovered insulin's role in treating diabetes?
Answer: A. Frederick Banting
Explanation: Banting's discovery of insulin transformed diabetes treatment.
Inventions & Discoveries: Hard Questions
Challenging questions for confident players.
Q31. Who invented the mechanical calculator known as the Pascaline in the 17th century?
Answer: A. Blaise Pascal
Explanation: Pascal built the Pascaline to assist with his father's tax calculations.
Q32. Who proposed the modern heliocentric model placing the sun at the center of the solar system?
Answer: A. Nicolaus Copernicus
Explanation: Copernicus's heliocentric model reshaped astronomy.
Q33. Who is credited with inventing an early seismograph for detecting earthquakes in ancient China?
Answer: A. Zhang Heng
Explanation: Zhang Heng's device could detect distant earthquakes.
Q34. Which chemist discovered the process of pasteurization?
Answer: A. Louis Pasteur
Explanation: Pasteurization, named for Pasteur, kills harmful microbes in liquids.
Q35. Who built the Turtle, the first submarine used in combat?
Answer: A. David Bushnell
Explanation: Bushnell's Turtle was used during the American Revolutionary War.
Q36. Which ancient scientist discovered the principle of buoyancy?
Answer: A. Archimedes
Explanation: Archimedes' principle explains why objects float or sink.
Q37. Who invented the barometer for measuring atmospheric pressure?
Answer: A. Evangelista Torricelli
Explanation: Torricelli created the first mercury barometer.
Q38. Which brothers achieved the first successful hot air balloon flight?
Answer: A. The Montgolfier brothers
Explanation: The Montgolfier brothers launched the first manned hot air balloon flight.
Q39. Who discovered the planet Neptune through mathematical prediction?
Answer: A. Urbain Le Verrier
Explanation: Le Verrier's calculations predicted Neptune's position before it was observed.
Q40. Who formulated the laws of planetary motion using Tycho Brahe's astronomical data?
Answer: A. Johannes Kepler
Explanation: Kepler used Brahe's precise observations to derive his three laws.
Inventions & Discoveries: Expert Questions
The toughest questions in the category, for true fans of the subject.
Q41. Who invented the microwave oven after noticing radar waves melted a chocolate bar?
Answer: D. Percy Spencer
Explanation: Percy Spencer made the discovery while working on radar in the 1940s.
Q42. Who patented riveted denim jeans in 1873?
Answer: C. Levi Strauss and Jacob Davis
Explanation: The metal rivets made work trousers much stronger.
Q43. Who invented Velcro after studying burrs stuck to his dog's fur?
Answer: B. George de Mestral
Explanation: De Mestral patented Velcro in the 1950s.
Q44. Which company's scientists created the Post-it Note?
Answer: A. 3M
Explanation: Spencer Silver and Art Fry developed it at 3M.
Q45. Who invented the first powered vacuum cleaner that used suction?
Answer: A. Hubert Cecil Booth
Explanation: Booth's 1901 machine was so big it was pulled by horses.
Q46. Who designed an early flushing toilet for Queen Elizabeth I in 1596?
Answer: B. John Harington
Explanation: Harington described his invention in a book.
Q47. Who is traditionally credited with inventing paper in ancient China?
Answer: C. Cai Lun
Explanation: Cai Lun improved papermaking around 105 AD.
Q48. Who invented the Band-Aid adhesive bandage?
Answer: D. Earle Dickson
Explanation: He made them for his wife, who often cut herself cooking.
Q49. Who created the first crossword puzzle in 1913?
Answer: B. Arthur Wynne
Explanation: It appeared in the New York World newspaper.
Q50. Who invented the Rubik's Cube?
Answer: A. Ernล Rubik
Explanation: The Hungarian professor created it in 1974.
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