Questions about the Universe

Questions and Answers about the UNIVERSE
1. The maximum evolution of the Universe is:
The maximum evolution of the Universe is man, that is, intellect, the reflective, inventive and creative capacity of man.
2. Man before the Universe is:
A) finished and perfect matter.
B) the only one capable of listening to it.
C) something very insignificant.
D) the reflection of degenerated matter.
E) just a chance accident.
Man before the Universe is the only one capable of understanding and changing the laws of the Universe.
3. The biggest cosmological problem is:
A) solve the origin and shape of the Universe.
B) outline the geometry of black holes.
C) explain the enigma of living beings in other systems.
D) quantify the stars of the Milky Way.
E) know the mechanics of quasars.
The greatest cosmological problem is to resolve the origin and form of the Universe, since they are aspects that transcend philosophy and history.
4. Due to thermonuclear reactions, stars:
A) they become white dwarfs.
B) they emit electromagnetic radiation.
C) develop differential rotation.
D) they adopt spheroidal shapes.
E) decay heavy isotopes.
Due to thermonuclear reactions, stars emit electromagnetic radiation, neutrinos and plasma.
When hydrogen atoms and nuclei come together, energy is emitted and new chemical elements of greater atomic weight are formed.

RPTA.: B

5. The classification of galaxies into irregular, elliptical and spiral was made by:
The classification of galaxies into irregular, elliptical and spiral was made by Edwin Hubble, who also discovered the recession of galaxies.
6. When the core of a superstar is completely compressed until it disappears, it transforms into a:
When the core of a superstar is completely compressed until it disappears, it transforms into a black hole.
Under certain conditions, gravitation can overcome the resistance of the neutron structure. In that case there is nothing that can oppose the collapse. The star can contract to zero volume and surface gravity increase towards infinity.
7. Check the correct thing about the pulsars:
A) They are small spheres with a powerful gravitational field.
B) they are large black holes.
C) are remains of a white dwarf.
D) is a galaxy cluster.
E) they are bodies of large volumetric dimensions.
Pulsars are strongly magnetized neutron stars, with field strengths reaching millions of Tesla. They are superdense spheres with high density, a powerful gravitational field and a very accelerated rotation. It emits energy beam like a lighthouse.
8. The Southern Cross constellation is visible from one of the following countries:
The Southern Cross constellation is visible from Southern Hemisphere countries such as Australia, Chile and Peru, because it is a southern constellation.
9. If the Universe is an expanding “spherical” globe then the following holds true
A) The Universe increases its mass
B) The density of the Universe increases
C) The temperature of the Universe rises
D) The “diameter” of the Universe increases
E) The distance between galaxies decreases
Considering that the Universe is a “spherical” globe with a constant and expanding mass then:
– Increases its volume and diameter
– Decreases its density and temperature
– The space darkens.
10. George Lemaitre and George Gamow developed the Cosmological Theory known as:
C) Inflationary Universe
George Lemaitre and George Gamow developed the Big Bang Theory.
In 1948, the Russian-born American physicist George Gamow modified Lemaître’s theory of the primordial nucleus. Gamow proposed that the Universe was created in a gigantic explosion and that the various elements that are observed today were produced during the first minutes after the Big Bang.
11. What is the Theory of the Stationary Universe based on?
A) In Aristotelian philosophy and the physics of Isaac Newton
B) In Platonic philosophy and Gaussriemannian mathematics
C) In Einstein’s physics and non-Euclidean geometry
D) In ​​Marxist philosophy and Greek mythology
E) In the geometry of archites and Leibnizian physics
The Theory of the Stationary Universe, in Aristotelian philosophy, the physics of Isaac Newton and Euclidean geometry.
12. An entropic universe is characterized by being essentially a Universe
D) refractive and infinite
E) paraboloid and hyperboloid
An entropic universe is characterized by being essentially a closed, finite Universe, with exhaustible internal energy and increasing disorder. It is a Malthusian universe.
13. The orbital dynamics of planets and galaxies is due to the following force:
B) electromagnetic force
D) radiation pressure
The orbital dynamics of planets and galaxies are due to the interaction of universal gravitation with the inertia of cosmic bodies.
14.What are nebulae?
A) They are remains of a low intensity black hole
B) They are irregular galaxies in the environments of the Milky Way
C) They are the emanations of a third generation quasar
D) They are concentrated cosmic gases and dusts
E) They are stellar figures that enhance the night sky
Nebulae are clouds of gas and dust, and there are emission, reflection and dark nebulae. Others are remains of a supernova.
15. The main theory that explains the origin and evolution of the solar system:
C) of the oscillating Universe.
The most important theory that explains the existence of the SPS is the Nebular Theory of Kant and Laplace.
16. The closest star to Earth is:
The closest star to Earth is the Sun and is only 8 light minutes away; that is, 150 million kilometers.
17. The outermost layer of the sun visible during eclipses is the:
The outermost layer of the sun is the corona and is visible during total solar eclipses.
18. The planet with the longest orbital period is:
The planet with the longest orbital period is Neptune due to its distance from the sun and its slow orbit.
19. The most distant orbital point of a planet with respect to the sun is called:
The most distant point of a planet from the sun is called Aphelion.
20. When the moon is between the sun and the earth, it is called:
The position of the moon between the earth and the sun is called conjunction.

RPTA.: B