Length contraction (AQA A-Level Physics): Quizzes
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Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What is length contraction in special relativity?
What is length contraction in special relativity?
Objects appear shorter in motion direction
In which type of frames does length contraction occur?
In which type of frames does length contraction occur?
Inertial frames only
What is the proper length of an object?
What is the proper length of an object?
Length measured when at rest relative to it
Which formula represents length contraction?
Which formula represents length contraction?
Which dimensions are affected by length contraction?
Which dimensions are affected by length contraction?
Only length in direction of motion
What happens to contracted length as velocity approaches ?
What happens to contracted length as velocity approaches ?
decreases towards zero
In the muon experiment, what is the contracted length at with km?
In the muon experiment, what is the contracted length at with km?
180 m
In the muon experiment, how many half-lives pass during travel through 180 m?
In the muon experiment, how many half-lives pass during travel through 180 m?
0.4
What is the expected count rate at detector 2 in the muon experiment (counts per second)?
What is the expected count rate at detector 2 in the muon experiment (counts per second)?
76
When calculating in special relativity, what should you avoid?
When calculating in special relativity, what should you avoid?
Applying both effects simultaneously