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Special Theory of Relativity Questions and Answers with Verified Solutions 100% Correct
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Special Theory of Relativity Questions and Answers with Verified Solutions 100% Correct
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Special Theory of Relativity Questions andAnswers with Verified Solutions 100% Correct
What does the Special theory of Relativity say? - ANSWER Laws of physics are
the same for all observers moving at constant speeds relative to each other.
Speed of light is the same for all observers.
What makes theory of relativity special? - ANSWER It is only valid for observers
moving with constant relative speeds (no acceleration).
What makes the theory of relativity strange? - ANSWER Speed of light is a
constant for all observers.
C = speed of light which is how much? - ANSWER 300,000 km/sec = 648 million
mi/h
Consequences of theory of special relativity - ANSWER Time dilation, length
contraction, breaking simultaneity
What does the theory of relativity describe?
Why is it "special?"
Why is "relativity" used? - ANSWER How motion affects our measurements of
distance and time. Someone moving in a different way would measure different
lengths for objects and different duration of events.
, It is special because it does not include the effects of gravity.
Relativity is used because one of the key ideas of the theory is that all
measurements are made relative to an observer.
What is length contraction? - ANSWER The length of an object depends on
how that object is moving. The faster it moves, shorter its length along along its
direction of motion.
The observed decrease in length of an object which is moving at high speeds. An
observer at rest measures the length of moving objects to be shorter.
Effect is noticeable only at very high speeds, near the speed of light.
What is time dilation? - ANSWER Objects observed in motion are shorter in
their direction of motion and clocks observed in motion tick more slowly.
What provides an example of length contraction and time dilation? - ANSWER
Cosmic rays which originate outside of Earth's atmosphere.
Cosmic rays are mostly made up of what? - ANSWER Protons and helium nuclei
How are muons formed? - ANSWER Collision of cosmic rays with upper
atmospheric nuclei that produce other particles, particularly muons. This can only
be explained by special relativity.
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