Physics Flashcards
Advanced Questions in physics
What fundamental force is responsible for the expansion of the universe?
Dark energy
In special relativity, what is the equation that relates energy and mass?
E=mc²
What is the name of the hypothetical particle that mediates gravity in quantum mechanics?
Graviton
The Casimir effect is a quantum phenomenon caused by what?
Vacuum fluctuations of the electromagnetic field
What is the SI unit of magnetic flux?
Weber (Wb)
What is the name of the paradox that suggests information is lost in a black hole?
Black Hole Information Paradox
The Michelson-Morley experiment disproved the existence of what hypothetical medium?
Luminiferous aether
What type of radiation is emitted by black holes according to Stephen Hawking?
Hawking radiation
In a vacuum, all electromagnetic waves travel at what speed?
Speed of light (3.00×10⁸ m/s)
What principle states that no two identical fermions can occupy the same quantum state?
Pauli exclusion principle
What is the effect called when a wave’s frequency changes due to relative motion?
Doppler effect
What law states that the total entropy of a closed system never decreases?
Second law of thermodynamics
The Large Hadron Collider (LHC) is designed to study what fundamental particles?
Subatomic particles (quarks, Higgs boson, etc.)
What is the lowest possible temperature in the universe, measured in Kelvin?
0 K (absolute zero)
The photoelectric effect provided evidence for what property of light?
Particle nature of light (photon theory)
Which type of nuclear reaction powers the Sun?
Nuclear fusion
In general relativity, what is a geodesic?
The shortest path between two points in curved spacetime
What type of energy transformation occurs in a hydroelectric dam?
Gravitational potential energy to kinetic energy to electrical energy
What is the Heisenberg uncertainty principle’s formula?
ΔxΔp≥ℏ/4π
What type of mirror creates a virtual, upright, and magnified image when the object is within the focal point?
Concave mirror
What is the name of the phenomenon where light bends due to gravity?
Gravitational lensing
What is the SI unit of inductance?
Henry (H)
The Schrödinger equation describes the behavior of what type of particles?
Quantum particles (wavefunctions of particles)
What quantum number determines an electron’s orbital shape?
Azimuthal quantum number (l)
