Physical Science Review

What is the most widely accepted scientific theory about the origin of the universe? It is supported by multiple lines of evidence.

• Big Bang Theory

• Theory of Evolution

• Creation Theory

• Star Formation Theory

Two protons and two neutrons are released during the decay process.

• Alpha

• Beta

• Gamma

• Fusion

A neutron becomes a proton, and an electron is emitted resulting in a new element with the same mass.

• Alpha

• Beta

• Gamma

• Fusion

Refers to the process by which heavier elements are formed within a star during the star's formation and evolution.

• star formation theory

• big bang nucleosynthesis

• stellar nucleosynthesis

• supernova

All of the following were formed during the primordial or big bang nucleosynthesis EXCEPT:

• hydrogen

• helium

• lithium

• magnesium

Elements that are heavier than Iron (Z = 26) are primarily produced when giant stars explode in:

• Photon

• Supernova

• Nova

• Blackhole

Which of the following statements is TRUE about water?

• It is a polar molecule

• It is a non-polar molecule

• It is both polar and non-polar

• It has no polarity

Which of the following will be the solvent if a non-polar substance dissolves in an unknown liquid?

• Non-polar

• Polar

• Water

• All of the above

Which of the following shapes is most likely to be the form of a non-polar molecule?

• linear

• Bent

• trigonal planar

• trigonal Pyramidal

Which of the following is an example of a non-polar molecule?

• CO2

• H2O

• NH3

• BCl3