What phenomenon ejects electrons from a metal when light shines on it?
Answer
Photoelectric effect
89724 Intermediate Trivia Questions
89724 public questions at this depth. How many can you answer?
What phenomenon causes a changing magnetic field to induce an electric current in a conductor?
Answer
Electromagnetic induction
What rule says that the total current entering an electrical junction equals the total current leaving it?
Answer
Kirchhoff’s current law
Who first generated and detected radio waves experimentally in the 1880s?
Answer
Heinrich Hertz
Which evolutionary scientist coined the term “dinosaur” in 1842?
Answer
Richard Owen
In evolution, what is the name for a reproductive barrier that acts before fertilization?
Answer
Prezygotic isolation
Which type of speciation occurs when a physical barrier splits one population into separate evolutionary groups?
Answer
Allopatric speciation
What company did Thomas Edison form in 1878 to promote his phonograph?
Answer
Edison Speaking Phonograph Company
What newspaper did Thomas Edison publish while working as a teenage telegraph operator?
Answer
The Grand Trunk Herald
On what date did a fire destroy much of Thomas Edison’s West Orange laboratory complex?
Answer
December 9, 1914
What was Thomas Edison’s first major commercial success as an inventor?
Answer
Stock ticker
What term names the one-way current discovered in an Edison vacuum lamp?
Answer
Edison effect
What was Thomas Edison’s first job in the railroad industry?
Answer
Newsboy
What water-lifting machine did Leonardo da Vinci study using a rotating helical screw?
Answer
Archimedes’ screw
What cooling device did Leonardo da Vinci design with rotating blades to move air?
Answer
Mechanical fan
Which scientist won the 1932 Nobel Prize in Physics for creating quantum mechanics?
Answer
Werner Heisenberg
Which instrument earned Gerd Binnig and Heinrich Rohrer the 1986 Nobel Prize in Physics?
Answer
Scanning tunneling microscope
Which genetic phenomenon earned Barbara McClintock the 1983 Nobel Prize in Physiology or Medicine?
Answer
Transposable elements
What phenomenon earned the 2015 Nobel Prize in Physics for Takaaki Kajita and Arthur B. McDonald?
Answer
Neutrino oscillations
What growth factor was central to Rita Levi-Montalcini’s 1986 Nobel Prize in Physiology or Medicine?
Answer
Nerve growth factor
Which African wind farm, opened in 2018, is Kenya’s largest wind-power project?
Answer
Lake Turkana Wind Power
Which solar park in India has a planned capacity of about 2.25 gigawatts?
Answer
Bhadla Solar Park
Which tidal barrage in France began generating electricity in 1966 and was then the world's largest tidal power station?
Answer
Rance Tidal Power Station
Who became the first woman to perform a spacewalk during the Soviet Salyut 7 mission in 1984?
Answer
Svetlana Savitskaya