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s4w2: special relativity, simultaneity, dilation and contractions

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Last updated 10 months ago
13 Nsɛmmisa
Hyɛ no nsow a efi ɔkyerɛwfo no hɔ:

There is only about 16 minutes of video in this flipped classroom. But its hard stuff. find other sources to try to work through it until you feel like you aren't entirely lost.

There is only about 16 minutes of video in this flipped classroom. But its hard stuff. find other sources to try to work through it until you feel like you aren't entirely lost.

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Asemmisa {{asɛmmisaAhyɛnsode}}
1.

What is the primary purpose of Lorentz transformations in special relativity?

Asemmisa {{asɛmmisaAhyɛnsode}}
2.

According to Einstein's special relativity, what is true about the speed of light in a vacuum?

Asemmisa {{asɛmmisaAhyɛnsode}}
3.

What happens to time for an object moving at high speeds relative to an observer? a) Time passes more quickly for the moving object b) Time passes more slowly for the moving object c) Time passes at the same rate for both the object and observer d) Time stops completely for the moving object

Asemmisa {{asɛmmisaAhyɛnsode}}
4.

Match the term with its definition:

Draggable itemarrow_right_altCorresponding Item

Change in measured length due to motion

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Spacetime

a non-accelerating coordinate system used by an observer to measure the position, motion, and physical properties of objects relative to their viewpoint

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Time dilation

Change in time due to relative speed

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Length contraction

Four-dimensional continuum of space and time

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Worldline

a unique path that an object traces through 4-dimensional spacetime, representing its complete history of spatial positions over time

arrow_right_alt

inertial frame of reference

Asemmisa {{asɛmmisaAhyɛnsode}}
5.

Time dilation describes the concept that the passage of time is not the same universally, the faster you are moving, the slower time is moving for you compared to something else. Where else do you see this?

Asemmisa {{asɛmmisaAhyɛnsode}}
6.

Just watch the first two explainers (college and above goes into weird places)

do you have any questions on the light clock idea?

Asemmisa {{asɛmmisaAhyɛnsode}}
7.

Now watch the video on Simultaneity Do you have any questions.

Asemmisa {{asɛmmisaAhyɛnsode}}
8.

If any of you said no to the last question - I don't believe you. Try again.

Asemmisa {{asɛmmisaAhyɛnsode}}
9.

Is this sort of like thunder and lightning? they happen at the same time, but you see one before you hear the other one? Why or why not?

Asemmisa {{asɛmmisaAhyɛnsode}}
10.

The farther apart two simultaneous events (from one stationary frame of reference) are in space

Asemmisa {{asɛmmisaAhyɛnsode}}
11.

We watched part of this in class, I didn't realize it wasn't included in the FC. I have added it.

watch the whole thing this time, do you have any questions?

Asemmisa {{asɛmmisaAhyɛnsode}}
12.

Part of the problem with understanding simultaneity, understanding time is important. it explains some of the same concepts, but links to the g

arage paradox.

Asemmisa {{asɛmmisaAhyɛnsode}}
13.
  • how time dilation works

  • how length contraction works

  • why two events may not be considered simultaneous to a one abserver but not to another

  • why non-simultaneity is not like the thunder/lightening comparison

  • time is wacky and way less normal that everyone thinks.

  • I've got this

  • I'm fuzzy

  • so confused