Big Bang Theory

What is the Big Bang Theory?

A theory of how the universe began, describing a rapid expansion from a tiny chunk of energy.

What explains the relationship between energy and mass according to Einstein's formula?

E = mc², indicating that energy and mass are interchangeable.

What is the age of the universe?

13.8 billion years.

Who proposed the Big Bang Theory in 1927?

Belgian scientist Georges Lemaître.

What is the age of the Earth?

4.6 billion years, determined by measuring the age of meteorites.

Who discovered that stars are part of galaxies?

Edwin Hubble.

What is the Doppler effect in relation to waves?

The change in frequency of waves as an object moves towards or away from an observer.

What happens to the frequency of waves when an object approaches the observer?

The wave/frequency increases.

What occurs to wave frequency as an object moves away from an observer?

The frequency/wave decreases.

What is the current average temperature of the universe?

The current average temperature of the universe is approximately 2.735 Kelvin.

Particles of the universe made things like

Planets, galaxies, and stars.