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Chapter 1 Modern Physics review Flashcards | StudBud
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Chapter 1 Modern Physics review
What is the Relativistic velocity addition for y
What is proper time
Chapter 1 Modern Physics review
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1
What is proper time
Time interval measured by an observer who is accelerating to the event
Time interval measured by an observer
Time interval measured by an observer who is at accelerating
Time interval measured by an observer who is at rest relative to the event
2
What is the Relativistic velocity addition for y
u_y^1=\frac{u_y}{γ\left(1+\frac{u_xv}{c^2}\right)}
u_y^1=\frac{u_y-v}{γ\left(1-\frac{u_xv}{c^2}\right)}
u_y^1=\frac{u_y+v}{γ\left(1-\frac{u_xv}{c^2}\right)}
u_y^1=\frac{u_y}{γ\left(1-\frac{u_xv}{c^2}\right)}
3
What is the Lorentz transformation for z
z^1=z-vt
z^1=z
z^1=z+vt
z^1=\frac{z}{vt}
4
What is the Lorentz–FitzGerald Contraction formula
l=l_0+γ
l=l_0-γ
l=\frac{l_0}{γ}
l=l_0γ
5
What does γ in the time dilation equation (β=\frac{v}{c})
\sqrt{1\divβ^2}
\sqrt{1+β^2}
\sqrt{1\timesβ^2}
\sqrt{1-β^2}
6
What does the Noninvariance of the speed of light in classical physics
The speed of light varies depending on the position of the earth
The speed of light depends on the season that earth is experiencing
The speed of light should depend on the motion of the source/the observer
The speed of light varies on where the moon is
7
What is the classical velocity formula (u^1 is u prime or a different refernce frame)
u=u^"\div v
u=u^"+v
u=u^1\times v
u=u^"-v
8
What is the equation for time dilation
Δt=γ\divΔt_0
Δt=γΔt_0
Δt=γ+Δt_0
Δt=γ-Δt_0
9
For all relative frames, what is the limit of the speed of motion
Speed of the person in the frame
Speed of the rotation of the earth
Speed of light
Speed of the car in the photo
10
What is the Relativistic velocity addition for x
u_x^1=\frac{u_x+v}{1-\frac{u_xv}{c^2}}
u_x^1=\frac{u_x-v}{1-\frac{u_xv}{c^2}}
u_x^1=\frac{u_x-v}{1+\frac{u_xv}{c^2}}
u_x^1=\frac{u_x+v}{1+\frac{u_xv}{c^2}}
11
What is the Lorentz transformation for t
t^1=γ\left(t\div\frac{vx}{c^2}\right)
t^1=γ\left(t\times\frac{vx}{c^2}\right)
t^1=γ\left(t+\frac{vx}{c^2}\right)
t^1=γ\left(t-\frac{vx}{c^2}\right)
12
What is the definition of the inertial frame
A frame of reference that is not moving at all
A frame of reference that is not accelerating
A frame of reference that is decelerating
A frame of reference that is accelerating
13
If Newtons law are valid in one inertial frame, they are also
valid in another reference frame with constant mass
not valid in any other reference frame
valid in another reference frame moving at constant velocity
valid in another reference frame moving at constant acceleration
14
What was the Michelson-Morley experiment
Attempt to find how the nucleus worked
Attempt to see if electrons have wave like properties
Attempt to find the ground state energy level
Attempt to measure speed of light by seeing if an aether wind was there
15
What is proper length
speed of an object measured in the frame in which the object is at rest
length of an object measured in the frame in which the object is at rest
mass of an object measured in the frame in which the object is at rest
length of an object measured in the frame in which the object isn't at rest
16
The length of an object moving relative to an observer is_____(Lorentz–FitzGerald Contraction)
measured to be much longer than its length in the rest frame.
measured to be the same as its length in the rest frame.
measured to be longer than its length in the rest frame.
measured to be shorter than its length in the rest frame.
17
What is the Galilean transformation for x,y, and z
x^1=x-vt,y^1=y,z^1=z-vt,t^1=t
x^1=x,y^1=y,z^1=z,t^1=t
x^1=x-vt,y^1=y-vt,z^1=z,t^1=t
x^1=x-vt,y^1=y,z^1=z,t^1=t
18
What is the Lorentz transformation for y
y^1=y-vt
y^1=y+vt
y^1=yvt
y^1=y
19
What is the first postulate
The laws of physic do not exist in the frames
The law of physics are different in every frame
The laws of physics do not apply to the frames
The law of physics are all the same in every frame
20
There is __________ in classical physics
a preferred inertial frame
no preferred inertial frame
some preferred inertial frame
multiple preferred inertial frame
21
What is the doppler effect formula
f_{obs}=f_{sce}\sqrt{\frac{\left(1β\right)}{\left(1-β\right)}}
f_{obs}=f_{sce}\sqrt{\frac{\left(β\right)}{\left(β\right)}}
f_{obs}=f_{sce}\sqrt{\frac{\left(1+β\right)}{\left(1-β\right)}}
f_{obs}=f_{sce}\sqrt{\frac{\left(1+β\right)}{\left(1+β\right)}}
22
What is the Lorentz transformation for x
x^1=γ\left(x-vt\right)
x^1=γ\left(x+vt\right)
x^1=γ\left(xvt\right)
x^1=γ\left(x\div vt\right)
23
What is the second postulate of relativity
The speed of light is different in every frame
The speed of light is not constant
The speed of light can be changed in each frame
The speed of light is the same in every frame 3\times10^8\frac{m}{s}
