College Physics Study Set 7

Physics & Astronomy

Quiz 26 :

Relativity

Quiz 26 :

Relativity

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Doubling the momentum of:
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C

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A mass is bouncing on the end of a spring with a period T when measured by a ground observer.What would the period of oscillation be (as measured by the same observer) if the mass and spring were moving past the ground observer at a speed of 0.80 c?
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D

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The relativistic effect of time dilation has been verified by which of the following?
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B

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According to a postulate of Einstein, which of the following describes the nature of the laws of physics as one observes processes taking place in various inertial frames of reference?
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That the speed of light in a vacuum has the same value for all inertial frames is:
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The speed of light is equal to:
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The significant result of the Michelson-Morley experiment was that it found:
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The period of a pendulum is 2.0 s in a stationary inertial frame of reference.What is its period when measured by an observer moving at a speed of 0.60 c with respect to the inertial frame of reference?
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The observed relativistic length of a super rocket moving by the observer at 0.70 c will be what factor times that of the measured rocket length if it were at rest?
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The period of an oscillating weight on a spring in an inertial frame of reference is 0.80 s.What would be its speed if it were to move by an observer who measures its period as 1.2 s? (c = 3.00 * 108 m/s)
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Einstein's theory of relativity is based in part on which one of the following postulates?
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According to the special theory of relativity, which of the following happens to the size of the time interval between two events occurring in an inertial frame of reference as the frame's velocity with respect to the observer increases?
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A tuning fork has a frequency of 400 Hz and hence a period of 2.50 * 10-3 s.If the tuning fork is in an inertial frame of reference moving by the observer at speed of 0.750 c, what is the frequency of the fork as measured by the observer? (Assume that measurements are strictly by optical means and that the speed of sound waves in air is not pertinent here).
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The Michelson-Morley experiment was designed to make use of ________ to find the motion of the Earth relative to the luminiferous ether.
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I am stationary in a reference system but if my reference system is not an inertial reference system, then, relative to me, a system that is an inertial reference system must:
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The experiment that dispelled the idea that light travels in the ether is called the:
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Which characterizes the main result of the Michelson-Morley experiment?
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According to the special theory of relativity, which of the following happens to the length of an object, measured in the dimension parallel to the motion of its inertial frame of reference, as the velocity of this frame increases with respect to a stationary observer?
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A ground observer measures the period of a pendulum moving as a part of an inertial frame of reference to be 2.30 s as the inertial frame moves by at a velocity of 0.600 c.What would the observed period be of the same pendulum if its inertial frame were at rest with respect to the observer?
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According to the special theory of relativity, if a 30-year old astronaut sent on a space mission is accelerated to speeds close to that of light, and then returns to earth after 20 years as measured on earth, what would be his biological age upon returning?
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