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RELATIVITY
RELATIVITY
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#physics#relativity#Marxwell#Michelson#Morley#Enstein#theory
Flashcards
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Answers
1
When the speed tends to the light speed (
v → c
), γ tends to 1 (
γ → 1
). TRUE or FALSE?
TRUE
FALSE
2
The speed of light (c) =
3 × 1012 meters/second
3 × 109 kilometers/hour
3 × 108 meters/hour
3 × 108 meters/second
3
Which number postulate said that the speed of light is a constant in all frames of reference?
1
2
4
Does T
0
represent proper time?
False
True
5
What is the correct formula for c?
t0/L
L0/t
t/L
L/t
6
For special theory of relativity, events that are simultaneous in one frame of reference
are simultaneous in all frames of reference.
may or may not be simultaneous in other frames of reference.
are not simultaneous in other frames of reference.
7
What is the proper time?
the time measured in the frame of reference where object is stationary
time measured in the frame of reference where object is in motion
time measured in Earth's frame of reference
the time measured to say the word proper
8
Einstein's first postulate tells us that the laws of physics are:
the same in all inertial reference systems
the same in all frames of reference
common sense applied to microscopic and macroscopic things
different depending on the situation
9
In accordance with time dilation,
Δt'= Δt∕γ
TRUE or FALSE
FALSE
TRUE
10
The stretching out of time due to motion is called time
dilation
motion
stretching
contraction
11
Is t
0
>t
True
False
12
Which of the following is what superman would look like when flying at high speeds?
B
C
D
A
13
Which is the dilation coefficient (γ)?
1/√(1-β )
1/√(1-β2 )
1∕√[1-(v2∕c)]
1∕√[1-(v∕c2)]
