In the Bohr model, an electron's quantum jump emits or absorbs what kind of radiation?
Answer
electromagnetic radiation
96484 Intermediate Trivia Questions
96484 public questions at this depth. How many can you answer?
Which foundation created a 1933 fund that Bohr used to help refugee academics?
Answer
Rockefeller Foundation
Which 1923 discovery convinced many physicists that light was composed of photons?
Answer
Compton scattering
Which British laboratory did Bohr visit in 1911 to meet J. J. Thomson?
Answer
Cavendish Laboratory
Which physicist worked in Copenhagen as Bohr's lecturer-assistant from 1926 to 1927?
Answer
Werner Heisenberg
What theory did Bohr, Kramers and Slater advance in 1924?
Answer
BKS theory
Which journal published Bohr's three famous atomic-theory papers in 1913?
Answer
Philosophical Magazine
Which foundation supported Bohr's 1911 trip to England?
Answer
Carlsberg Foundation
Which school did Niels Bohr attend starting at age seven?
Answer
Gammelholm Latin School
What is the oldest named geologic period in Martian history?
Answer
Noachian
What are the seasonal dark streaks observed on some Martian slopes called?
Answer
Recurring slope lineae
What Martian dark feature was the first surface feature of another planet seen through a telescope?
Answer
Syrtis Major Planum
Which NASA spacecraft mapped Mars from 1997 until contact was lost in 2006?
Answer
Mars Global Surveyor
Which large plain is the landing region of China's Zhurong rover?
Answer
Utopia Planitia
Which Chinese mission delivered the Zhurong rover to Mars?
Answer
Tianwen-1
Which NASA mission used the first sky crane landing system on Mars?
Answer
Mars Science Laboratory
Which Mars orbiter carries the HiRISE camera?
Answer
Mars Reconnaissance Orbiter
What is the name of the NASA orbiter launched in 2005 with the HiRISE camera?
Answer
Mars Reconnaissance Orbiter
What is the broad smooth plain covering much of Mars's northern lowlands?
Answer
Vastitas Borealis
Which NASA rover landed in Gusev crater in 2004?
Answer
Spirit
What was the landing site of NASA's Viking 1 lander?
Answer
Chryse Planitia
Which spacecraft made the first successful flyby of Mars in 1965?
Answer
Mariner 4
Which experimental physicist in The Big Bang Theory is played by Sara Gilbert?
Answer
Leslie Winkle
Which episode features Penny giving Sheldon Leonard Nimoy's signed napkin?
Answer
The Bath Item Gift Hypothesis
What is the opening theme of The Big Bang Theory called?
Answer
Big Bang Theory Theme
What is Howard Wolowitz's astronaut nickname?
Answer
Froot Loops
What is the first name of Penny's father?
Answer
Wyatt
Which main male character in The Big Bang Theory lacks a Ph.D.?
Answer
Howard Wolowitz
What scientific field does Bernadette study in graduate school?
Answer
Microbiology
What is Amy Farrah Fowler's academic field?
Answer
Neurobiology
Which space station does Howard visit as a payload specialist?
Answer
International Space Station
At what age did Sheldon enter college?
Answer
11
What is Sheldon's stated IQ?
Answer
187
What is the point in Earth's orbit when it is closest to the Sun called?
Answer
Perihelion
What spacecraft carried the Huygens probe to Saturn?
Answer
Cassini
Which Mars rover landed in Jezero crater in 2021?
Answer
Perseverance