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What two quantities did Edwin Hubble compare to discover the expansion of the Universe?
Edwin Hubble compared the distances to galaxies (based on their brightness) and their redshifts (due to the Doppler effect) to discover the expansion of the Universe. By finding a relationship between these two quantities (dubbed Hubble's Law), he provided evidence that the Universe is expanding.
What did hubble's law prove about the universe?
Hubble's Law demonstrated that the universe is expanding, as it established a linear relationship between the distance of galaxies from Earth and their recessional velocity. This means that the farther away a galaxy is, the faster it is moving away from us, which supports the Big Bang theory. Hubble's findings provided strong evidence that the universe is not static but dynamic, leading to a deeper understanding of cosmic evolution.
Who was the astronomer that discovered the universe was expanding?
Edwin HubbleAnswer2:Hubble did not believe the universe is expanding. The universe is not expanding like the big bang, it is excited like an atom. The electrons jump to a higher level and lower their speed. The lower speed is a lower energy state, the max energy is when v=c.Hubble;s relationship v=HD indicates the distance D from the max energy state, where v = c.Hubble's Constant is dR/Rdt =c/R =H = 300M/150TT = 2E-18 m/s x31E21 = 62km/s/Megaparsec.
What was hubbles theory about the solar system?
Hubble's theory, primarily associated with Edwin Hubble, is often linked to his observations of the expanding universe rather than a specific theory about the solar system itself. He demonstrated that distant galaxies were moving away from us, suggesting that the universe is expanding. This led to the formulation of Hubble's Law, which relates the distance of galaxies to their recessional velocity. While this theory revolutionized our understanding of the universe, it does not specifically address the solar system's structure or dynamics.
Is it true that the further galaxies are away from us the faster they move?
Yes, it is true. This relationship is described by Hubble's law, which states that the velocity at which a galaxy moves away from us is directly proportional to its distance from us. This observation is a key piece of evidence supporting the expanding universe theory.
What made Hubble think the universe was expanding?
Hubble observed that galaxies were moving away from each other, indicating that the universe is expanding. He discovered a relationship between a galaxy's distance from Earth and its velocity, known as Hubble's law, providing evidence for this expansion.
When did Hubble discover that the universe was expanding?
Edwin Hubble discovered that the universe was expanding in 1929 when he observed that distant galaxies were moving away from us, as indicated by their redshift in their spectral lines. This discovery led to the formulation of Hubble's law, which describes the relationship between a galaxy's distance and its velocity of recession.
What two quantities did Edwin Hubble compare to discover the expansion of the Universe?
Edwin Hubble compared the distances to galaxies (based on their brightness) and their redshifts (due to the Doppler effect) to discover the expansion of the Universe. By finding a relationship between these two quantities (dubbed Hubble's Law), he provided evidence that the Universe is expanding.
What does Hubbles law imply?
Hubble's Law implies that the universe is expanding, as it demonstrates a direct relationship between the distance of galaxies from Earth and their recessional velocity. Specifically, the farther away a galaxy is, the faster it appears to be moving away from us, indicating that the fabric of space itself is stretching. This observation supports the Big Bang theory and leads to the conclusion that the universe has been expanding since its inception.
What did hubble's law prove about the universe?
Hubble's Law demonstrated that the universe is expanding, as it established a linear relationship between the distance of galaxies from Earth and their recessional velocity. This means that the farther away a galaxy is, the faster it is moving away from us, which supports the Big Bang theory. Hubble's findings provided strong evidence that the universe is not static but dynamic, leading to a deeper understanding of cosmic evolution.
Explain what Hubble's law states?
Hubble's Law states that the recessional velocity of galaxies is directly proportional to their distance from Earth. This observation implies that the universe is expanding, with more distant galaxies moving away faster than those closer to us. The relationship is often expressed with the equation ( v = H_0 \times d ), where ( v ) is the velocity, ( d ) is the distance, and ( H_0 ) is Hubble's constant. This law provides strong evidence for the Big Bang theory and the overall dynamics of the universe.
what is the Hubble effect?
The Hubble effect, also known as Hubble's Law, describes the observation that galaxies are moving away from us, and their speed is proportional to their distance from Earth. This phenomenon is a key piece of evidence for the expanding universe theory, indicating that the universe has been expanding since the Big Bang. The relationship is expressed mathematically as ( v = H_0 \times d ), where ( v ) is the velocity of a galaxy, ( H_0 ) is the Hubble constant, and ( d ) is the distance to the galaxy. The Hubble effect provides crucial insights into the dynamics and evolution of the cosmos.
What observations helped Hubble to conclude that the universe is expanding?
Hubble observed that distant galaxies were moving away from Earth, which he noted through the redshift of their light spectra. This redshift indicated that the wavelengths of light were stretched, implying these galaxies were receding from us. Hubble also found a linear relationship between the distance of galaxies and their recessional velocity, leading to the conclusion that the universe is expanding uniformly in all directions. This pivotal discovery became known as Hubble's Law.
Are quasars moving towards Earth at very high velocity?
No. Pretty much everything in the Universe is moving away from pretty much everything else in the Universe. This is because the Universe is expanding.
What is it when galaxies move away at a speed proportional to their distance?
This phenomenon is known as Hubble's Law, which describes the relationship between the distance and the velocity at which galaxies are moving away from us. It is a key piece of evidence for the expansion of the universe.
What is the relationship between the velocity of an object and the time it takes to travel a certain distance?
The relationship between the velocity of an object and the time it takes to travel a certain distance is that the higher the velocity, the shorter the time it takes to cover the distance. This is because velocity is the speed of an object in a specific direction, so a higher velocity means the object is moving faster and can cover the distance in less time.
What is the relationship between initial velocity, acceleration, and time in the kinematic equations for distance?
In the kinematic equations for distance, the relationship between initial velocity, acceleration, and time is that the distance traveled is determined by the initial velocity, the acceleration, and the time taken to travel that distance. The equations show how these factors interact to calculate the distance an object moves.
