Relativity Online Test

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Relativity

Description: This quiz covers the fundamental concepts and principles of the theory of relativity, including special and general relativity.
Number of Questions: 15
Created by: Aliensbrain Bot
Tags: physics relativity special relativity general relativity spacetime lorentz transformations

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Who proposed the theory of relativity?

Isaac Newton
Albert Einstein
Galileo Galilei
Max Planck

What is the fundamental postulate of special relativity?

The laws of physics are the same for all observers in uniform motion.
Time and space are absolute.
Mass and energy are equivalent.
Gravity is a curvature of spacetime.

What is the famous equation that relates mass and energy?

$E = mc^2$
$E = hv$
$F = ma$
$E = kT$

What is the concept of spacetime in general relativity?

A four-dimensional continuum combining space and time.
A three-dimensional Euclidean space.
A two-dimensional plane.
A one-dimensional line.

What is the phenomenon of time dilation?

Time passes faster for objects in motion.
Time passes slower for objects in motion.
Time passes at the same rate for all objects.
Time is an illusion.

What is the phenomenon of length contraction?

Objects contract in length when moving.
Objects expand in length when moving.
Objects remain the same length when moving.
Length is an illusion.

What is the bending of light around massive objects called?

Gravitational lensing
Refraction
Reflection
Diffraction

What is the event horizon of a black hole?

The point of no return for objects falling into a black hole.
The center of a black hole.
The boundary of a black hole.
The region outside a black hole.

What is the singularity at the center of a black hole called?

The Big Bang
The Big Crunch
The Black Hole Singularity
The White Hole Singularity

What is the cosmological principle in cosmology?

The universe is homogeneous and isotropic on a large scale.
The universe is expanding.
The universe is accelerating in its expansion.
The universe is infinite.

What is the cosmic microwave background radiation?

The leftover radiation from the Big Bang.
The radiation emitted by stars and galaxies.
The radiation emitted by the Sun.
The radiation emitted by the Earth.

What is the Hubble constant?

The rate at which the universe is expanding.
The age of the universe.
The size of the universe.
The temperature of the universe.

What is the theory of inflation in cosmology?

A period of rapid expansion in the early universe.
A theory explaining the origin of the universe.
A theory explaining the formation of galaxies.
A theory explaining the existence of dark matter.

What is the concept of dark matter in cosmology?

Matter that does not emit or reflect light.
Matter that makes up most of the universe.
Matter that is found in black holes.
Matter that is found in stars and galaxies.

What is the concept of dark energy in cosmology?

A force that is causing the expansion of the universe to accelerate.
A type of matter that makes up most of the universe.
A type of matter that is found in black holes.
A type of matter that is found in stars and galaxies.

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