SPECIAL THEORY OF RELATIVITY Flashcards
The idea was introduced and revolutionized by Albert Einstein
Time Travelling
detects changes in position over time, essentially perceiving motion. In physics, a body encompasses any entity, whether macroscopic or microscopic.
Observer
Everything around us is connected
CLASSICAL RELATIVITY
It was first introduced using the concept of Newtonian Mechanics
CLASSICAL RELATIVITY
All motions are relative to a particular frame of reference.
Newtonian Mechanics
is where motion is observed, whether an object is at rest or in motion. All motions are connected within a particular frame of reference.
Inertial Frame of Reference
aligns with the law of inertia and can be either stationary or in uniform motion.
Inertial Frame of Reference
——- believed that the speed of an electromagnetic wave in the form of light must be constant regardless of the identified inertial frame of reference
James Clerk Maxwell
states that the motions of an object are relative to the inertial frame of reference. Hence, things move relative to each other - no absolute rest and motion.
Special Theory of Relativity (STR)
Also known as Galilean Invariance
states that the laws of motion are the same in all inertial frames.
GALILEAN RELATIVITY
Involves bodies experiencing changes in velocity, deviating from constant motion.
Non inertial frame of reference
asserts that the laws of motion apply universally without exceptions. According to this principle, the speed of an object is not constant and will vary depending on the chosen frame of reference.
GALILEAN RELATIVITY
It states that the speed of light in a vacuum must be the same in all inertial reference frames
Einstein’s Postulates: The Constancy of the Speed of Light
is the “slowing down” of a clock as determined by an observer who is in relative motion with respect to that clock.
Time Dilation
states that simultaneity is not absolute but depends on the observer’s frame of reference.
Relativity of Simultaneity
It states that the laws of motion are the same in every inertial frame of reference.
Einstein’s Postulates: The Relativity Principle
is the phenomenon where a clock appears to slow down as observed by an observer who is in relative motion with respect to the clock.
Time Dilation
It tackles that the length of an object is relative to the observer’s inertial frames of reference.
Length Contraction
demonstrates that the length of an object is relative to the observer’s inertial frame of reference, akin to time and simultaneity.
Length Contraction
it tells us that no ordinary matter or entity known to exist in the observable universe can travel faster than 300 million meters per second except light.
Cosmic Speed Limit
It states the equivalence between mass and energy. The product of a large value of the squared speed of light and a small amount of mass corresponds to a tremendous amount of energy released during a nuclear reaction.
Mass-Energy Equivalence
