What is a frame of reference?

coordinates that determine positions + velocities of objects in that frame

When does classical physics fail?

when things are moving very fast (greater than 10% of the speed of light), When objects are very small e.g. subatomic, When gravity is very strong (ie near a black hole)

The Postulates of Special Relativity state:

All the laws of physics are valid in all inertial frames of reference., Light travels at constant speed, regardless of motion of source or observer

If the speed of light is constant...

the time observed will progress at different rates, the lengths of objects will be observed to vary

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Modern physics pre AP 7.1

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1
Who discovered the Special theory of relativity
Keppler
Einstein
Maxwell
newton
2
The speed of light is:
3x10^8 m/s
6x10^34m/s
6x10^24 m/s
3000km/s
3
What is a frame of reference?
set of coordinates that can be used to determine acceleration.
coordinates that determine positions + velocities of objects in that frame
coordinates that can determine time of objects in that frame.
set of coordinates that can determine distance of objects in that frame.
4
When does classical physics fail?
when things are moving very fast (greater than 10% of the speed of light)
When objects are very small e.g. subatomic
when things are moving very slow (less than 10% of the speed of light)
When gravity is very strong (ie near a black hole)
5
Who discovered the laws of gravity?
Newton
keppler
Gallileo
Einstein
6
The Postulates of Special Relativity state:
black holes exist
All the laws of physics are valid in all inertial frames of reference.
Light travels at constant speed, regardless of motion of source or observer
relativity is special
7
What is correct about the speed of light?
it changes depending on what it is traveling in
it depends on the frame of reference
it depends on the observer
it is constant in every medium
8
What is c?
a constant force
the speed of light
velocity
a type of energy
9
If the speed of light is constant...
the time observed will progress at the same rate
the lengths of objects will be observed to remain constant
the time observed will progress at different rates
the lengths of objects will be observed to vary
10
Who discovered that the speed of light is constant iin the inertial reference frame, leading to Einsteins theory?
Maxwell
Rutherford
Gallileo
Michelson and Morley
11
Mass is simply...
a force
a type of light
a form of energy
mass x acceleration

Modern physics pre AP 7.1 Flashcards | StudBud