Einstein’s second postulate tells us that the speed of light

is a constant in all frames of reference

To an observer at rest, anobject traveling at very high speeds appears to be

shorter in the direction of travel

When we move around through space just a little bit, we are moving

mostly through time and only a little bit through space

we see the spaceship clock as running slow.

Einstein stated that the laws of physics are

the same in all uniformly moving frames of reference

studbud

Duplicate of Relativity

16 termsStudBud Administration21 plays

Imported from external platform

Flashcards16 cardsFPractice quizPHost liveL

Questions 16

Answers

1
read the next screen
B. 80 km/h
C. 60 km/h
A. 100km/h
D. 40 km/h
2
Einstein’s second postulate tells us that the speed of light
slows in a transparent medium
changes depending on the time of day
is a constant in all frames of reference
depends on one’s frame of reference
3
Special theory of relativity states all laws of nature are the same in reference frames that
C. move at constant speeds
A. accelerate
B. vibrate
D. oscillate
4
When you approach a light source, the wavelength of emitted light appears
A. longer
C. the same
B. shorter
5
To an observer at rest, anobject traveling at very high speeds appears to be
longer in all directions
shorter in the direction of travel
shorter in the direction perpendicular to travel
shrunken uniformly
6
When we move around through space just a little bit, we are moving
only through space
mostly through time and only a little bit through space
mostly through space and only a little bit through time
through time only
7
Read the question on the next screen
D
C
A
B
8
Compared to earth time, there is a physical slowing of time when you travel at
D. none of the above
A. relativistic speeds
B. everyday low speeds
C. both of the above
9
If you travel at speeds close to speed of light, compared with your friends on earth, you are
longer
no younger nor no older
younger
older
10
Read next screen.
we see the spaceship clock as running just the same.
we see the spaceship clock as running slow.
we see the spaceship clock as running fast.
11
What Einstein discovered about space and time is that they
are parts of one whole
are separate entities
follow an inverse-square law
are special to space travelers
12
When we speak of time dilation, we mean that time
stretches with speed
is related to space
is a constant at all speeds
compresses with speed
13
No matter how fast the source of light is moving, light always
has the same period
travels in the same direction
has the same colour
has the same speed
14
Einstein reasoned that:
there's no one spot relative to which motion can be measured
all motion is relative
all of the above
a spaceship must measure its speed relative to other objects
15
Einstein stated that the laws of physics are
common sense applied to microscopic and macroscopic things
different depending on the situation
the same in all uniformly moving frames of reference
the same in all frames of reference
16
If you are moving in a high-speed spaceship relative to the earth, you would
be able to do much more in an hour than ever before
notice all your clocks have slowed down
none of the above
notice your pulse slowing down

Duplicate of Relativity Flashcards | StudBud