Question

The confidence in the Big Bang theory is based on theoretical predictions using well-tested laws of physics. Although the Big Bang itself cannot be directly observed, the laws of physics are applied to deduce the universe's past conditions. These laws impose strict constraints on the initial conditions necessary for the universe to evolve into its present state. One crucial piece of evidence supporting the theory is the Cosmic Microwave Background, a fossil radiation predicted to exist before its discovery. Astronomical instruments, sensitive to various signals like radio waves and infrared light, are employed to detect this evidence. Telescopes act as time machines, allowing scientists to observe distant objects as they appeared millions or billions of years ago, providing insights into the early universe.

What is the Big Bang theory primarily based on?

A. Direct observations of the event
B. Theoretical predictions using laws of physics
C. Religious scriptures
D. Ancient artifacts

Answer 1

The correct answer is option B. Theoretical predictions using laws of physics

Step-by-step explanation:

The Big Bang theory is primarily based on theoretical predictions using laws of physics. Although the Big Bang event itself cannot be directly observed, the laws of physics are applied to deduce the universe's past conditions. These laws impose strict constraints on the initial conditions necessary for the universe to evolve into its present state. One crucial piece of evidence supporting the theory is the Cosmic Microwave Background (CMB), a fossil radiation predicted to exist before its discovery.

Astronomical instruments, sensitive to various signals like radio waves and infrared light, are employed to detect this evidence. Telescopes act as time machines, allowing scientists to observe distant objects as they appeared millions or billions of years ago, providing insights into the early universe.