Special Theory of Relativity

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Who formulated the Special Theory of Relativity?
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Albert Einstein formulated the Special Theory of Relativity in 1905.
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What are the two postulates of the Special Theory of Relativity?
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The laws of physics are the same in all inertial frames, and the speed of light is constant in a vacuum.
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What is time dilation according to Special Relativity?
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Time dilation is the concept that time passes more slowly for an observer in motion compared to one at rest.
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What happens to mass as an object approaches the speed of light?
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As an object approaches the speed of light, its mass effectively becomes infinite, requiring infinite energy to move.
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What is the formula for mass-energy equivalence?
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The formula is E=mc², where E is energy, m is mass, and c is the speed of light.
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How does Special Relativity affect our understanding of simultaneity?
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Simultaneity is relative—events that are simultaneous in one frame may not be in another.
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What is length contraction in Special Relativity?
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Length contraction is the phenomenon where an object's length appears shorter when it moves past an observer at high speeds.
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Why can't objects move faster than the speed of light?
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As objects approach light speed, they require infinite energy due to increasing mass, making it physically impossible.
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What experimental evidence supports Special Relativity?
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Key evidence includes the Michelson-Morley experiment, time dilation observable in particle decays, and GPS system accuracy.
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How do clocks behave differently in Special Relativity?
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Moving clocks tick slower compared to stationary ones, a phenomenon known as time dilation.
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What is an inertial frame of reference?
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An inertial frame of reference is one in which an object either is at rest or moves at a constant velocity.
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How does light behave according to Special Relativity?
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Light travels at a constant speed (c) in vacuum, regardless of the observer's motion.
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What is the twin paradox?
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It's a thought experiment where a twin traveling at high speed ages slower than the twin who stays at rest.
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Describe how GPS technology relies on Special Relativity.
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GPS satellites account for time dilation, as they move quickly and are in a different gravitational field compared to Earth's surface.
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What is spacetime according to Special Relativity?
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Spacetime is the four-dimensional continuum where space and time are not separate entities but interwoven.
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