Quiz 1 Practice

8/26/09

Quiz 1 Practice

1. If all atoms are made of the same materials, how do they differ? Be sure to include information about the parts of the atom.

2. How would you prove that all matter is made of atoms to someone who had never heard of atoms?

3. If we can’t directly observe atoms, protons, neutrons, electrons, or quarks, how do we know they are there?

4. What common thread(s) do you see in the work of Aristotle, Democritus, AlGhazali and Kanada in trying to decipher the nature of matter?

5. Knowing the composite parts of an atom, what might the LHC help us to discover in the coming decades? Be sure to include info about hadrons.

6. Judge Democritus’ theory of the atom compared to the current accepted atomic model.

Physical Science - Grade 8 - Quiz 1 Practice

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8/26/09

Quiz 1 Practice

7. What does it mean to say electrons are found within the “electron cloud”?

8. Describe the major parts of the atom including their location and charge.

9. Why are the atomic masses of most atoms rounded off to decimal points considering their atomic numbers are whole numbers?

10. Why don’t atoms simply pass through one another if they are mostly empty space?

11. Was Einstein right about quantum mechanics?

12. What factors play into Kanada and Al-Ghazali’s conception of the atom? How might their approach differ from that of professional scientists today?

Physical Science - Grade 8 - Quiz 1 Practice

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