# Einsteins Theory quiz

Which concept of special relativity is best understood by the thought experiment of a light clock?

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Halfway through his trip Antoine realized he forgot some things and had to radio back to Earth with additional shipping requests. How long does it take that message to reach Earth?

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Antoine is a molecular exo-biologist on his way to a planet orbiting a star that is exactly 7 light years away from Earth to begin studying the suitability of the planet to support human life. He is eager to begin work as he says goodbye to his family and boards the spaceship for the long journey ahead…

After Antoine arrives at his destination he is anxious to get started but needs the additional supplies he ordered half way through his voyage before he can begin. What is the earliest he can expect the additional supplies to arrive?

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Parker and Stan perform a simple experiment timing how long it takes a ball to drop while riding on a roller coaster and notice different results than when they perform the same experiments in the lab. What is the likely reason?

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What of the following are challenges to deep space exploration at high velocity caused by relativistic considerations?

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Clock A and Clock B are synchronized and then Clock B is placed on a spaceship departing Earth at 80% the speed of light while Clock A stays on Earth. When the ship returns 10 years later and the clocks are compared, what is found?

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Dan and Dave who are identical twins. Dan left on a trip to a different solar system in the year 3172 and returned in 3197. Dave remained at home on Earth. When reunited one twin is visibly older than the other. Which twin is older and what is the most logical reason?

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Jim stands at the front of a space ship moving at 90% of the speed of light and fires a laser gun forward. Jim’s ship is moving past Steve who sees the ship moving at 90% of the speed of light away from him. Steve now sees Jim turn around and fire the gun backwards. From Steve’s point of view the laser light leaving the gun moves at.

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Determine why corrections are needed for the internal clocks of GPS satellites.

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What did Einstein’s 1905 paper titled “On the Electrodynamics of Moving Bodies” introduce?

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Antoine is a molecular exo-biologist on his way to a planet orbiting a star that is exactly 7 light years away from Earth to begin studying the suitability of the planet to support human life. He is eager to begin work as he says goodbye to his family and boards the spaceship for the long journey ahead.
When Antoine arrives at his destination he wants to send a message back to Earth to let everyone know he’s okay. If Antoine’s message is sent via tight-beam laser communication, how long will it take Antoine’s family to receive the message after he sends it?

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Gloria is in a spaceship moving with constant velocity 50% of the speed of light and detects Andy’s spaceship in the distance. What has to be true of Andy’s spaceship if Andy is in an equivalent reference frame to Gloria?

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Davis and Troy both see a ball thrown into the air from different vantage points. Davis sees the ball ascend straight up into the sky while Troy sees the ball move diagonally up and to the left. Which of the following is true?

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Gloria is in a spaceship moving with constant velocity 50% of the speed of light and detects Andy’s spaceship in the distance. If Andy and Gloria are indeed in equivalent reference frames, which of the following must be true?

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In our everyday lives how often do we encounter effects of time dilation?

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Clock A and Clock B are synchronized and then Clock B is placed on a spaceship departing Earth at 80% the speed of light while Clock A stays on Earth. Of the two clocks which clock shows the correct time?

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Jim stands at the front of a space ship moving at 90% of the speed of light and fires a laser gun forward. Jim’s ship is moving past Steve who sees the ship moving at 90% of the speed of light away from him. From Jim’s point of view the laser light leaving the gun moves at:

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Jim stands at the front of a space ship moving at 90% of the speed of light and fires a laser gun forward. Jim’s ship is moving past Steve who sees the ship moving at 90% of the speed of light away from him. From Steve’s point of view the laser light leaving the gun moves at:

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Dan and Dave who are identical twins. Dan left on a trip to a different solar system in the year 3172 and returned in 3197. Dave remained at home on Earth. Dan and Dave compare notes on how far Dan travelled. Dan’s notes are from his reference frame and Dave’s notes are based on keeping track of his brother’s journey from Earth. If Dan believes he travelled around 3 light years how far does Dave think his twin has travelled?

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Antoine is a molecular exo-biologist on his way to a planet orbiting a star that is exactly 7 light years away from Earth to begin studying the suitability of the planet to support human life. He is eager to begin work as he says goodbye to his family and boards the spaceship for the long journey ahead.
Antoine is expecting additional supplies after he arrives at his destination. If his supplies were shipped out 3 months after he left Earth how long will he have to wait before his supplies arrive? Assume the ship his supplies are on has the same cruising speed as Antoine’s own vessel.

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What portion of a routine airplane flight can be considered a nonaccelerating frame of reference?

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Antoine is a molecular exo-biologist on his way to a planet orbiting a star that is exactly 7 light years away from Earth to begin studying the suitability of the planet to support human life. He is eager to begin work as he says goodbye to his family and boards the spaceship for the long journey ahead…
If Antoine’s ship has a cruising speed of 80% the speed of light which of the following is true about Antoine’s trip to the star?

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Dan and Dave who are identical twins. Dan left on a trip to a different solar system in the year 3172 and returned in 3197. Dave remained at home on Earth. If Dan and Dave no longer appear to be the same age then which twin is the correct age?

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Why would making a phone call to future explorers or colonists on the planet Mars be difficult?

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Antoine is a molecular exo-biologist on his way to a planet orbiting a star that is exactly 7 light years away from Earth to begin studying the suitability of the planet to support human life. He is eager to begin work as he says goodbye to his family and boards the spaceship for the long journey ahead. What can we say about the distance Antoine traveled in his rest frame?

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