Physical Science '25 Review Part 3

It is the philosophy which states that nature is composed of atom and void.

• atom  

• Ex nihilo

• Proton  

• atomism

He was a Greek philosopher who disregarded Leucippus’ and Democritus’ ideas on the existence of atoms

• Thomson

• Plato 

• Aristotle       

• Dalton 

He proposed that everything in the universe is composed of four elements: earth, fire, water, and air.

• Thomson

• Plato 

• Aristotle       

• Dalton 

A philosophy practiced throughout Egypt and Eurasia which aimed to purify and perfect materials through transmutation.

• Atomism

• Alchemy      

• Ex Nihilo

• Cosmology

Radioactivity did become a blessing to the scientific community. A lot of experiments that contributed to our understanding of the structure of the atom highly depended on rays and principles of radioactivity.

• True

• False

The discovery of the neutron answered the question of how protons clump together in the nucleus. They serve as buffer particles.

• True

• False

Democritus and Leucippus were the first Greek scholars who believed in atomism and pioneered the study of the composition of and changes in matter.

• True

• False

The protons and neutrons are found at the nucleus which is located outside of the atom.

• True

• False

Changes in substances result when atoms collide with each other in the void.

• True

• False

The Greeks’ concept of atoms and even Aristotle’s arguments were rediscovered and revived after being proven to be true.

• True

• False