GENERAL PHYSICS Q1

It is a process of element formation that happened after the expansion of the universe.

• Big Bang Nucleosynthesis

• Stellar Nucleosynthesis

• fusion

• nucleosynthesis

A type of chemical reaction where three helium nuclei are converted into carbon.

• tri-alpha process

• alpha ladder process

• proton-proton chain

• CNO cycle

The element’s identity is determined by the number of _____ present on it.

• neutron

• Proton

• Atomic mass

• valence electron

All heavy elements are formed inside the star's core. Which is not a heavy element?

• Iron (Fe)

• Helium (He)

• Silicon (Si)

• Oxygen (O)

Among are the evidences that support the Big Bang theory, EXCEPT for

• explosion of stars

• Cosmic Microwave Background Radiation

• Redshift

• abundance of light elements

When a proton and neutron collide and combine through nuclear fusion, an ______ forms.

• atomic nucleotide

• atomic nuclear

• atomic nuclei

• atomic synthesis

These are atoms of the same element, having the same number of protons but different number of neutrons.

(a)  

Stars that are bigger than our sun is called ______ stars.

• Giant

• Large

• Massive

• Humungous

Stars undergo different cycles. Which is the correct sequence of the life cycle of red giant stars?

• A. Planetary nebula, white dwarf, red giant, black dwarf

• B. main-sequence, protostar, red giant, white dwarf, black dwarf

• C. protostar, main-sequence, white dwarf, red giant, planetary nebula

• D. main-sequence, red giant, planetary nebula, white dwarf, black dwarf

In which life cycle of the stars does heavier elements are usually formed?

• main-sequence

• red giant

• super red giant

• nebula