Science Quiz: Entities at the Edge of Physics
The Quiz: Entities at the Edge of Physics
Entities at the Edge of Physics
1/5
The __ is the name for the condition in which spacetime suffers a catastrophic breakdown. Scientists say they can be understood only by a theory of quantum gravity, but no such complete theory exists yet. Fill in the blanks.
2/5
The first observational evidence that __ exist in nature was provided by a monumental discovery in 1967. A matchbox-sized piece of this object is expected to weigh around three billion tonnes. The Milky Way alone is expected to have a billion of them. Fill in the blanks.
3/5
The QGP is a state of matter that cosmologists expect filled our universe in the first hundred microseconds of its life at a temperature of around 1 trillion K. In these conditions, the subatomic particles that make up matter are forced to break up into their smallest constituents. What does QGP stand for?
4/5
A __ is the result of a short-lived and random change in the energy of a point in empty space. They cause pairs of subatomic particles to be created and annihilated almost instantaneously — a process Stephen Hawking used to prove black holes can evaporate. Fill in the blanks.
5/5
A __ is so named because it’s a hypothetical region of spacetime from which energy can escape but cannot enter. While the concept appears in certain theories of quantum gravity, they haven’t actually been found. Fill in the blanks.
Published – April 26, 2025 01:55 pm IST
Reference : https://www.thehindu.com/sci-tech/science/the-science-quiz-entities-that-lie-at-the-edge-of-physics/article69493779.ece
