El universo: Estructura y componentes Flashcards
Analizar la estructura y los componentes del universo, identificando los principales cuerpos celestes (galaxias, estrellas, planetas, satélites, asteroides y cometas) y comprendiendo sus características, ubicación e interacción, mediante la observación y el uso de recursos digitales, para fomentar una visión científica del cosmos (20 cards)
What is the structure of the universe primarily composed of?
Galaxies, stars, planets, and dark matter.
Who was the first to use a telescope to observe celestial bodies?
Galileo Galilei.
True or False: Einstein proposed the theory of general relativity.
True.
Fill in the blank: The Milky Way is an example of a _______.
galaxy.
Which theory describes the expansion of the universe?
The Big Bang Theory.
Multiple Choice: What did Einstein’s equation E=mc² express?
Energy is equal to mass times the speed of light squared.
What is the observable universe?
The part of the universe that we can see from Earth, limited by the speed of light.
Fill in the blank: The __________ principle states that the laws of physics are the same in all inertial frames of reference.
principle of relativity.
True or False: The universe is static and unchanging according to Newtonian physics.
False.
Which scientist proposed the heliocentric model of the solar system?
Nicolaus Copernicus.
What are the three main components of the universe?
Ordinary matter, dark matter, and dark energy.
Multiple Choice: What does the term ‘redshift’ refer to?
The increase in wavelength of light from an object moving away from the observer.
What is the significance of the Hubble Space Telescope?
It has provided deep views of the universe, revealing galaxies and cosmic phenomena.
Fill in the blank: Einstein’s theory of __________ explains the gravitational effects of mass on the fabric of space and time.
general relativity.
Who formulated the laws of planetary motion?
Johannes Kepler.
What is a black hole?
A region of space where the gravitational pull is so strong that nothing, not even light, can escape.
Multiple Choice: What is the main evidence for the Big Bang Theory?
Cosmic microwave background radiation.
What role did Galileo play in the Scientific Revolution?
He challenged traditional views of the universe and laid the groundwork for modern astronomy.
What is the role of dark energy in the universe?
It is believed to be responsible for the accelerated expansion of the universe.
True or False: All stars are part of a galaxy.
True.
