What do we mean by time dilation in relativity?
A. It is the idea that time seems to run slower in reference frames moving relative to you, but time really is the same for everyone.
B. It is the idea that relativity makes time dilate, or expand, for people who study it.
C. It is a hallucinogenic effect experienced by people who take too much of something.
D. It is the idea that time really runs slower in reference frames moving relative to you.
Answer:D
What do we mean by time dilation in relativity?
A. It is the idea that time seems to run slower in reference frames moving relative to you, but time really is the same for everyone. B. It is the idea that relativity makes time dilate, or expand, for people who study it. C. It is a hallucinogenic effect experienced by people who take too much of something. D. It is the idea that time really runs slower in reference frames moving relative to you.