Exam (elaborations)
Relativity Questions and Answers
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Exam of 2 pages for the course Relativity at Relativity (Relativity)
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RelativityGeneral Relativity - answerThe geometric theory of gravitation developed by Albert
Einstein, incorporating and extending the theory of special relativity to accelerated
frames of reference and introducing the principle that gravitational and inertial forces are
equivalent
Special Relativity - answerDescribes how time and space are affected by motion at a
constant velocity (especially very fast velocities).
Describes how mass and energy are interrelated.
space-time - answerspace and time are part of the same whole
motion is relative - answer- motion of objects is always described as relative to
something else.
speed of light is constant - answerthe speed of light is the same for all observers
regardless the motion of the source or observer
reference frame - answerA perspective from which the position and motion of a system
can be described
first postulate of special relativity - answerthe idea that the laws of physics are the same
and can be stated in their simplest form in all inertial frames of reference
second postulate of special relativity - answerthe speed of light is a constant regardless
of the motion of the source or the observer.
time dilation - answerThe slowing of a clock as its speed approaches the speed of light
as measured by an observer not moving with the clock
length contraction - answerthe contraction of a measured length of an object or a
distance in a frame of reference moving at nearly the speed of light, predicted by the
theory of special relativity.
twin paradox - answerthe moving twin in space is not going to age as fast as the twin on
earth. How fast he moves relative to the speed of light. Gravity affects time.
relative momentum - answermomentum increases "relativisticly" as particles approach
the speed of light
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