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Merch
Quizzes
FAQ
About
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Blog
Universe & Physics
According to quantum field theory, what mediates the electromagnetic force?
Gluons
Higgs bosons
Gravitons
Photons
None
What does the cosmological constant represent in Einstein's field equations?
Gravitational pull of stars
Energy density of empty space (vacuum energy)
Mass of black holes
Speed of cosmic expansion
None
What causes time dilation in special relativity?
Acceleration in zero gravity
Relative motion between observers at high speeds
Changes in gravitational potential
Atmospheric interference
None
What is the current best estimate for the age of the universe?
7.2 billion years
13.8 billion years
9.7 billion years
20.4 billion years
None
What is the Planck length thought to represent?
The wavelength of cosmic radiation
The radius of a proton
The smallest meaningful length in physics
The length of a light pulse
None
What is the theoretical limit beyond which no information can escape a black hole?
The event horizon
The singularity core
The accretion disk
The Hawking boundary
None
Which cosmic event is thought to have produced the first elements in the universe?
Supernova explosions
Neutron star collisions
Big Bang nucleosynthesis
Cosmic inflation
None
What is the primary evidence for the existence of dark matter?
Fluctuations in background neutrino levels
Radiation detected from distant galaxies
Gravitational effects on visible matter and galaxy rotation curves
Magnetic fields in galaxy clusters
None
What phenomenon occurs when light moves away from a gravitational field?
Photon splitting
Doppler compression
Gravitational redshift
Lensing reflection
None
Which force is considered the weakest but has infinite range?
Weak nuclear force
Electromagnetic force
Gravitational force
Strong nuclear force
None
Time's up
