1.
What did Martin Ryle create?
Correct Answer
B. Radio Telescope
Explanation
Martin Ryle created the Radio Telescope. A radio telescope is a specialized instrument used in the field of radio astronomy to detect and study celestial objects by collecting and analyzing radio waves emitted by them. Martin Ryle was a British radio astronomer who made significant contributions to the development of radio astronomy, including the design and construction of the first radio telescopes. His work revolutionized our understanding of the universe and paved the way for further advancements in the field.
2.
What type of stars did Henrietta Leavitt discover?
Correct Answer
B. Variable stars
Explanation
Henrietta Leavitt discovered variable stars. This is evident from her work as a Harvard "computer" in the early 20th century, where she analyzed photographic plates of stars and found a correlation between the period and luminosity of certain variable stars, known as Cepheid variables. Her discovery revolutionized the field of astronomy, as it provided a way to measure distances to faraway galaxies and contributed to the development of the concept of the expanding universe.
3.
Ralph Alpher was a big supporter of which theory.
Correct Answer
B. Big Bang Theory
Explanation
Ralph Alpher was a big supporter of the Big Bang Theory. This theory proposes that the universe originated from a singularity and has been expanding ever since. Alpher made significant contributions to the development of this theory, including his work on the primordial nucleosynthesis, which explained the abundance of light elements in the universe. His research provided strong evidence in support of the Big Bang Theory and helped shape our understanding of the origins and evolution of the universe.
4.
What did Walter Baade find out that supported the Big Bang Theory?
Correct Answer
A. Found out that the universe was double the size and age compared to what was originally thought.
Explanation
Walter Baade found out that the universe was double the size and age compared to what was originally thought. This discovery supported the Big Bang Theory because it provided evidence for the expansion of the universe. The theory suggests that the universe began from a singularity and has been expanding ever since. Baade's findings of a larger and older universe align with this idea of expansion, providing further support for the Big Bang Theory.
5.
What does the Big Bang theory say the universe did first?
Correct Answer
A. Cooled and expanded
Explanation
The Big Bang theory states that the universe initially started as an extremely hot and dense point, and then rapidly expanded and cooled down over time. This expansion caused the universe to become less dense and allowed for the formation of matter and galaxies. Therefore, the correct answer is "Cooled and expanded."
6.
What is a Pulsar?
Correct Answer
C. Neutron star
Explanation
A pulsar is a highly magnetized, rotating neutron star that emits beams of electromagnetic radiation out of its magnetic poles. As the star rotates, these beams of radiation are observed as regular pulses of light, hence the name "pulsar". Neutron stars are formed from the remnants of massive stars that have undergone a supernova explosion, and they are incredibly dense, with a mass greater than that of the sun packed into a sphere with a radius of only a few kilometers.
7.
What did William Fowler win the Nobel Prize for?
Correct Answer
C. Studying nuclear reaction that lead to the present elemental composition.
Explanation
William Fowler won the Nobel Prize for studying nuclear reactions that led to the present elemental composition. This means that his research focused on understanding how nuclear reactions occur and how they contribute to the formation of different elements in the universe. His work likely involved studying the processes that take place inside stars and the role that nuclear reactions play in the synthesis of elements. This research is important because it helps us understand the origins and composition of the universe.
8.
What was Christian Doppler's Theory?
Correct Answer
D. Apparant chage of freqency of a wave emitted by a moving source.
Explanation
Christian Doppler's theory is about the apparent change in frequency of a wave emitted by a moving source. This theory, known as the Doppler effect, states that when a wave source moves towards an observer, the frequency of the wave appears higher, and when the source moves away, the frequency appears lower. This phenomenon is observed in various situations, such as the sound of a passing ambulance or the redshift of light from distant galaxies. Doppler's theory revolutionized our understanding of wave behavior and has applications in various fields, including astronomy and medical imaging.
9.
Who did Milton Humason work with for many years?
Correct Answer
C. Edwin Hubble
Explanation
Milton Humason worked with Edwin Hubble for many years.
10.
What did James Peebles work on along with Robert Dicke?
Correct Answer
A. Discovery of the Cosmic Microwave Background
Explanation
James Peebles worked on the discovery of the Cosmic Microwave Background along with Robert Dicke. The Cosmic Microwave Background is a form of radiation that is believed to be leftover from the early stages of the universe. Peebles and Dicke played a crucial role in the development of the theory and the experimental confirmation of this important cosmological phenomenon.
11.
Lemaitre was pleased by the discovery of galactic redshifts that showed that galaxies were....
Correct Answer
B. Moving away from the Earth
Explanation
The discovery of galactic redshifts indicated that galaxies were moving away from the Earth. This is because redshift is a phenomenon where the light from distant objects is shifted towards longer wavelengths, indicating that the object is moving away. This discovery supported the idea of an expanding universe, which was a key component of Lemaitre's Big Bang theory.
12.
What experiment was Ernest Marsden famous for?
Correct Answer
C. Gold Foil.
Explanation
Ernest Marsden was famous for the gold foil experiment. In this experiment, Marsden, along with his mentor Ernest Rutherford, bombarded a thin sheet of gold foil with alpha particles. The unexpected results of this experiment led to the discovery of the atomic nucleus and the development of the Rutherford model of the atom.
13.
William and Margaret Huggins...
Correct Answer
B. Worked with spectroscopy
Explanation
William and Margaret Huggins are known for their work with spectroscopy. Spectroscopy is the study of the interaction between matter and electromagnetic radiation. The Huggins used spectroscopy to study celestial objects, such as stars and nebulae, and made significant contributions to our understanding of their composition and structure. Their work laid the foundation for modern astrophysics and helped pave the way for future discoveries in the field.
14.
What are two things that Stephen Hawking is known for working on?
Correct Answer
A. Black holes and Quantum gravity
Explanation
Stephen Hawking is known for his groundbreaking work on black holes and quantum gravity. He made significant contributions to our understanding of black holes, including the concept of Hawking radiation. Additionally, he worked on developing a theory of quantum gravity, which aims to reconcile the principles of quantum mechanics with the theory of general relativity. Hawking's work in these areas has had a profound impact on the field of theoretical physics and has shaped our understanding of the universe.
15.
What was Albert Einstein's new theory about?
Correct Answer
D. Relativistic Motion
Explanation
Albert Einstein's new theory was about Relativistic Motion. Relativistic Motion is the concept that describes how objects in motion can have their measurements of time, length, and mass affected by their relative velocity. Einstein's theory of relativity revolutionized the understanding of space, time, and gravity, proposing that the laws of physics are the same for all observers regardless of their relative motion. This theory had a profound impact on the fields of physics and cosmology, leading to groundbreaking discoveries and advancements in our understanding of the universe.
16.
What are the four projects George f. smoot working on?
Correct Answer
A. Berkeley Center for Cosmology pHysics,Dark Energy Probes,Galactic Emission Mapping or (GEM),CMB data analysis.
17.
Who did Arno and Robert share the nobel prize with?
Correct Answer
C. Pyotr Leonidovich Kapitsa
Explanation
Arno and Robert shared the Nobel prize with Pyotr Leonidovich Kapitsa.
18.
In 1922 what did Alexander Friedman Disover?
Correct Answer
B. The expanding-universe solution
Explanation
Alexander Friedman discovered the expanding-universe solution. This refers to his work in 1922, where he derived a set of equations known as the Friedman equations, which described the expansion of the universe. These equations were based on Einstein's theory of general relativity and provided a mathematical framework for understanding the expansion of the universe. Friedman's discovery was a significant contribution to the field of cosmology and laid the foundation for our current understanding of the expanding universe.
19.
George Gamow made a number of contributions to many feilds, what feild didn't he make a contribution to?
Correct Answer
D. Radiation
Explanation
George Gamow made contributions to the fields of radioactivity, cosmology, and nuclear physics. However, he did not make any significant contributions to the field of radiation.
20.
Williamina Fleming is known for:
Correct Answer
C. Discovering the Horsehead Nebula.
Explanation
Williamina Fleming is known for discovering the Horsehead Nebula. The Doppler Effect is a phenomenon related to the change in frequency or wavelength of a wave as observed by an observer moving relative to the source of the wave. Discovering CMB Radiation is credited to Arno Penzias and Robert Wilson. There is no information or evidence to suggest that Williamina Fleming assisted Albert Einstein.
21.
Marie and Pierre discovered two radioactive elements. What are they?
Correct Answer
B. Polonium and Radium
Explanation
Marie and Pierre Curie are famous for their discovery of two radioactive elements, polonium and radium. These elements were discovered through their groundbreaking research on radioactivity, for which they were awarded the Nobel Prize in Physics in 1903. Polonium and radium have since been used in various applications, including in medicine and industry.
22.
How many process(es) did Hans Bethe believe there were to the source of energy of stars?
Correct Answer
B. Two.
Explanation
Hans Bethe believed that there were two processes involved in the source of energy for stars.
23.
What did robert dicke first discover?
Correct Answer
A. The radio telescope
Explanation
Robert Dicke first discovered the radio telescope.
24.
When Arno and Bob found the CBR where did they find it?1)2)3)4)
Correct Answer
D. EVERY WHERE
Explanation
Arno and Bob found the CBR everywhere. This suggests that the CBR is present in various locations, including around stars, in nebulas, and in between galaxies and stars. The answer "EVERY WHERE" implies that the CBR is a pervasive phenomenon that can be observed throughout the universe.
25.
Why was Solon Bailey forced to move his Observatory.
Correct Answer
C. The weather conditions made it difficult for them
Explanation
Solon Bailey was forced to move his Observatory because the weather conditions made it difficult for the workers. The adverse weather conditions may have affected the visibility of the stars and hindered their observations. Therefore, Bailey had to relocate the Observatory to a place with more favorable weather conditions in order to continue his astronomical studies effectively.