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Homework exercises on Theories of Matter for a Physical Science course. Also refer to Physics, atoms, molecules, protons, electrons, atomic energy, nucleus, education, distance learning, Ron Kurtus, School for Champions. Copyright © Restrictions
Theories of Matter - Homework Answers
After you have completed the Matter Homework, you can refer to these answers. Although it is better to have known the answer from your reading, the process of writing the correct answer on your homework sheet will help you remember the concepts.
1. Why is the Molecular Theory of Matter sometimes called the Kinetic Theory of Matter?
It states that molecules are in constant movement.
2. What does Brownian motion show?
That matter is made of very small particles such as molecules.
3. How is heat explained?
Heat is the movement of molecules. The total energy of all molecules in an object is measured as the heat of the object.
4. What is the basis of chemistry?
.Filling the outer electron orbit of atoms is the basis of chemistry.
5. What is an element?
The basic unit of chemistry. The same as an atom.
6. Are atoms the smallest known particles?
No.
7. What particles are in the nucleus of an atom?
.Protons and neutrons.
8. What is the solar system model of the atom?
Electrons rotate around the nucleus in orbits, similar to how the planets rotate around the Sun.
9. Is the solar system model the true picture of the atom? Why or why not?
It is a good approximation, but there are newer models that explain things the solar system model doesn't..
10. How does the Atomic Theory explain electricity?
Electricity is the movement of electrons..
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