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AP Physics I Special Relativity Review Flashcards | StudBud
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AP Physics I Special Relativity Review
AP Physics I Special Relativity Review
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Review of our final unit - special relativity!
Flashcards
14 cards
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Practice quiz
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Host live
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Questions
14
Answers
1
The alien ship flies horizontally at 0.5c. From Tom Brady's perspective, the aliens onboard...
move in slow motion
move in fast motion
have the same time as him
2
An alien ship flies over a stadium at 0.5c. How long do they measure the 100 yd long field as?
100 yards
86.6 yards
50 yards
115.5 yards
3
Which of the following is true of proper time?
it is measured for an object at rest
it is always larger than dilated time
it's measured by an observer moving w/respect to 2 events
it's measured by an observer at rest w/respect to 2 events
4
Which of the following would be considered a non-inertial reference frame?
An airplane banking, following a curved path
A volleyball that is in freefall toward Earth
A man standing on a chair
A cat running down the stairs at constant speed
5
How fast must a spaceship travel if it is to become 30% as long as its rest length?
0.95c
0.84c
0.91c
0.30c
6
When is the quiz on special relativity?
Saturday 5/25
Friday 5/24
Never! I take no more quizzes because I'm lazy
Friday 5/31
7
Which of the following is FALSE?
In a vacuum, c varies slightly based on light frequency
every inertial reference frame is equally valid
The speed of light is the same for all observers
The laws of physics are the same in all reference frames
8
The center of the Milky Way is 26,000 light years from Earth. Can a human ever get there?
yes, traveling just slightly faster than the speed of light
yes, traveling close to the speed of light it's possible
Even with time dilation, it's not possible within 1 lifetime
No, they'd need to travel at light speed,which is impossible
9
The speed of light...
depends on how fast the observer is moving
will be slower with respect to fast moving objects
is slowest through the vacuum of space
is the same for all observers, regardless of their motion
10
Wilcox's favorite class is:
Period 1
Period 5
Period 4
Period 6
11
The Michelson-Morley experiment confirmed that:
The speed of light is ... something
the speed of light is not possible to measure experimentally
The speed of light is the same for all observers
The speed of light is constant through the ether
12
From the perspective of the aliens, how will they see Tom Brady?
moving in fast motion
moving at a normal rate
as a hero
moving in slow motion
13
The alien ship flies past at 0.5c. From Tom Brady's perspective, the alien ship is:
less width (side to side)
less width and less height
less length (nose to tail)
inferior to him in every way
14
Satellites travel at a very high speed, so we (on Earth) measure satellite clocks to run:
backwards
slow
fast
normal... (by now you know it's not this one)
