Lesson 1 Key Question Answers 1. What does Hubble’s law predict about the speed of a galaxy far away from the Milky Way compared to one that is closer? Hubble’s law predicted that galaxies were moving away from earth at a rate proportional to their distance from us. The farther away from the Milky Way a galaxy is‚ the larger the redshift is. The farther away a galaxy is‚ the faster it is moving away. Conversely‚ blueshifted galaxies‚ such as Andromeda‚ are moving closer to the Milky Way.
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Introduction (5:03) 1. What is the name for all the electromagnetic waves that exist? Names of the electromagnetic waves that exist are Gamma Rays‚ X-Rays‚ Ultraviolet Waves‚ Visible Light‚ Microwaves‚ and Radio Waves. 2. What are electromagnetic waves produced from? What two things do they have? Electromagnetic waves are produced by the vibration of charged particles and have electrical and magnetic properties. 3. What is the name for the section of the electromagnetic spectrum that
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The Cosmic Perspective‚ 7e (Bennett et al.) Chapter 22 The Birth of the Universe 22.1 Multiple-Choice Questions 1) To date‚ physicists have investigated the behavior of matter and energy at temperatures as high as those that existed in the universe as far back as ________ after the Big Bang. A) 1 million years B) 300‚000 years C) 300 years D) 3 minutes E) 10-10 second Answer: E 2) How long after the Big Bang was the Planck time‚ before which our current theories are completely unable
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What is the age an origin of our universe? The issue to be discussed in the following paper is the 3 theories of how the universe started‚ the Doppler Effect‚ the age of the universe‚ the origin of the universe‚ red shift/blue shift and dark matter/dark energy. The Doppler Effect is a change in frequency and wave length of a wave. It’s caused by the change in distance between the thing creating the wave and whatever it’s measuring‚ seeing and hearing the wave. The universe was created over 14
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The Big Bang theory is today’s dominant scientific theory about the origin of the universe. It states that the universe was created from an infinitely hot and dense subatomic ball‚ which once exploded not only created energy and matter‚ but space and time itself. This is estimated to have happened around 14 billion years ago. 300‚000 years after the big bang took place the plasma of elementary particles had cooled to 3000K‚ during which atoms began to form as electrons came into orbit around protons
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Project work in Physics Theme: The Big Bang theory (The theory of everything) Subject of studying: The beginning of all the surroundings And the mysteries of our inexplicable and amazing Universe | | |[pic]
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“Suppose you suddenly hear a loud bang… and ask me‚ ‘what made that bang?’ and I reply‚ ‘nothing‚ it just happened.’ You would not accept that.” (Strobel‚ The case for Faith‚ 76) Humans have‚ and always will‚ wonder about the beginning of time. Some creation theories are more widely spread and known than others. A common definition of a ‘theory’ is a proposed explanation whose status is still conjectural‚ in contrast to well-established propositions that are regarded as reporting matters of actual
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second of superluminal expansion. Lacking adequate competition‚ the popular prototype has dominated the metaphysics front for the past two decades even though much of its complications have been left unresolved. With the advent progress in cosmic microwave background detection‚ these unsettled loopholes are begging for answers. A successful model that seeks to replace the Big Bang notion must be ready to explain the past‚ present and future states of the universe in an efficient and unified manner
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bright than the expected from this event the scientists concluded that the universe’s expansion was accelerating. The claim that dark energy exists is support by the Integrated Sachs Wolfe effect. This effect states that “light forms the cosmic microwave background-- radiation present throughout the universe that was created by the Big Bang-- would come more blue in color as it passed through the gravitational fields of lumps of matter.” But many other scientists do not accept that dark energy exists
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However‚ he felt that the radiation was too weak to detect. He predicted that although the radiation would have begun as visible light at the Big Bang‚ it would have shifted down to microwave radiation by the time it reached Earth. He would prove this prediction correct. (Feuerbacher). Sixteen years later in 1964‚ Arno Penzias and Robert Wilson‚ radio astronomers who were attempting to get rid of what they thought was background noise
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