Phy Sci Q3 Lesson 1

This refers to the study of how the Universe began, how it continues to exist, and how it will end.

• Astronomy

• Cosmology

• Astrology

• Cosmetology

What is the term referred to the process that creates new atomic nucleus from primarily protons and neutrons?

• Nuclear Fusion

• Nuclear Reaction

• Nuclear Synthesis

• Nucleosynthesis

It is a theory that explains that the universe started as a very dense and hot ”singularity ‘ which eventually cooled and began to form different particles?

• Big Bang Theory

• Cosmic Inflation Theory

• Oscillating Theory

• Steady State Theory

What is formed when there is a fusion of a proton and neutron in Big Bang nucleosynthesis?

• Deuterium

• Hydrogen

• Protium

• Tritium

What is the term referred to form an element that has the same atomic number of the original element but with different atomic mass or mass number?

• Elements

• Heavy Elements

• Isotopes

• Light Elements

Which of the following light elements were formed in the big bang nucleosynthesis?

• H, He, Be, C

• He, H, Be, Li

• Li, H, He, Na

• Fe, H, He ,Be

This refers to the expansion of the universe.

• Recombination

• Cosmic Inflation

• Cosmic Microwave Background

• Redshift

It refers to the displacement of the spectrum of an astronomical object toward longer wavelengths.

• Cosmic Microwave Background

• Electromagnetic Radiation

• Doppler Effect

• Redshift

How much Hydrogen does the universe's ordinary matter contain?

• 24%

• 42%

• 47%

• 74%

How much Helium does the universe's ordinary matter contain?

• 24%

• 42%

• 47%

• 74%