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Relativity Physics Test 4 Questions And Answers 100% Correct 2025
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Relativity Physics Test 4 Questions And Answers 100% Correct 2025
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Relativity Physics Test 4 Questions And Answers100% Correct 2025
Special Theory of relativity - ANSWER - Developed by Einstein
- It is a theory created by Einstein that describes how time is affected by motion in
space at constant velocity, and how mass and energy are related.
- It describes that 2 observers, in uniform relative motion, perceive time and space
differently.
Time Dilation - ANSWER - It was an idea proposed by Einstein that stated that
time can be stretched depending on the motion between the observer and the
events being observed.
- It occurs whenever we move through space, we to some degree alter our rate of
moving into the future.
- It is also known as "the stretching of time."
- A slowing of time in accordance with the theory of relativity that occurs in a
system in motion relative to an outside observer and that becomes apparent
especially as the speed of the system approaches that of light — called also time
dilatation.
Space-time - ANSWER It is a term made up of two parts: Space and time.
Postulates - ANSWER They are two fundamental assumptions that the theory
of special relativity rests on.
What did the first postulate of special relativity state? - ANSWER - It states that
all the laws on nature are the same in all uniformly moving frames of reference.
, - It can assume our inability to detect a state of uniform motion.
What did the second postulate of special relativity state? - ANSWER - It states
that the speed of light in empty space will always have the same value regardless
of the motion of the source or the motion of the observer.
- It assumes that the speed of light is constant at 300,000 km/s
- The ratio of space to time for light is the same for all who measure it.
The ratio of space to time for light .............................................. - ANSWER
..........is the same for all who measure it.
What was the reasoning behind Albert Einstein's ideas? - ANSWER Einstein
reasoned that all motion is relative and all frames of reference are unpredictable.
An object cannot measure its speed relative to empty space, but only relative to
other objects.
According to Einstein's formula, what is the relationship between mass, energy,
and the speed of light? - ANSWER E = mc^2
What is the speed of light and why is it such an important concept in physics?
What is the formula? - ANSWER The speed of light is 3.00 x 10^8 m/sec.
Nothing travels faster than the speed of light.
Speed of light - ANSWER It is equal to 3.00 x 10^8 meters per second.
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