# Shared Flashcard Set

## Details

PHYS 225 Final Review
UIUC PHYS 225
18
Physics
02/26/2018

Term
 If you're moving:Do you age slower or faster?Are you shorter or longer?
Definition
 Age SLOWERAre SHORTER (along direction of motion)
Term
 I'm firing light from a moving object. How fast is the light traveling?
Definition
 LIGHT ALWAYS TRAVELS @ C
Term
 Say you have two watches in bread problem. Which clock reads an earlier time, and by how much?
Definition
 Front clock reads earlier by vx/c^2x is distance in rest frame.
Term
 L'/L
Definition
 [image]
Term
 t'/t
Definition
 1--------------------[image] one over [image]
Term
 [2 3][-6 -7][4 5][-8 -9]
Definition
 [2(-6) + 3(-8) | 2(-7) + 3(-9)][4(-6) + 5(-9) | 4(-7) + 5(-9)]
Term
 relativistic doppler shift
Definition
 fsource = fobserved (expression on EQN sheet)
Term
 Contravariant
Definition
 [image][image]
Term
 Covariant
Definition
 [image][image]
Term
 (delta tau)^2 < 0(delta tau)^2 > 0
Definition
 delta tau < 0 -> spacelikedelta tau > 0 -> timelike
Term
 Four velocity
Definition
 (ct,x,y,z)/tau
Term
 Acceleration from a force
Definition
 a = F/(m*gamma^3)
Term
 Kinetic Energy
Definition
 [image]
Term
 dL -> explain using metric
Definition
 [image]Remember - dL > dr and is going to be longer. Use schwartzschild to solve
Term
 time t
Definition
 [image]
Term
 Curved Geometry, s and r
Definition
 s = R(theta)r = Rsin(theta)
Term
 Green's Theorem
Definition
 [image]
Term
 Prove a E and B field is physically impossible
Definition
 [image][image]
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