89685 Intermediate Trivia Questions
89685 public questions at this depth. How many can you answer?
Which inventor demonstrated the first public radio transmission across the Atlantic in 1901?
Answer
Guglielmo Marconi
Who invented the modern vacuum cleaner and patented a motorized floor-cleaning machine in 1901?
Answer
Hubert Cecil Booth
In electrostatics, what is the SI unit of electric dipole moment?
Answer
Coulomb-metre
Which physicist discovered the electron in 1897 through cathode-ray experiments?
Answer
J. J. Thomson
In electromagnetism, what is the SI unit of magnetic field strength H?
Answer
Ampere per metre
Which scientist discovered that a compass needle is deflected by an electric current in 1820?
Answer
Hans Christian Ørsted
What device uses a semiconductor junction to emit light when electric current passes through it?
Answer
Light-emitting diode
Which scientist demonstrated in 1752 that lightning is electrical using a kite experiment?
Answer
Benjamin Franklin
Which instrument displays electrical voltage as a waveform over time?
Answer
Oscilloscope
Which material becomes strongly magnetized in an external field and commonly forms permanent magnets?
Answer
Ferromagnetic material
In evolutionary biology, what type of natural selection favors one extreme version of a trait over others?
Answer
Directional selection
Which evolutionary force can make a rare allele become common purely through chance?
Answer
Genetic drift
What evolutionary process transfers DNA directly between unrelated organisms instead of from parent to offspring?
Answer
Horizontal gene transfer
Which hominin species made the 3.66-million-year-old Laetoli footprints in Tanzania?
Answer
Australopithecus afarensis
Which disease-causing organism became resistant to methicillin soon after the antibiotic was introduced in 1959?
Answer
Staphylococcus aureus
What was the name of Blackbeard’s second-in-command aboard Queen Anne’s Revenge?
Answer
Israel Hands
Which pirate discovered the wreck of the Whydah Gally off Cape Cod in 1984?
Answer
Barry Clifford
Which pirate captain was known by the nickname Long Ben?
Answer
Henry Every
In the human brain, which structure regulates vital functions such as breathing and heart rate?
Answer
Medulla oblongata
Which human organelle is known as the powerhouse of the cell?
Answer
Mitochondrion