But What are Physical and chemical properties? 1 Matter is identified or described using two basic properties: physical properties and chemical properties.

2 Melting snow is an example of a physical change. Fireworks are an example of a chemical change. But What are Physical and Chemical changes?

Do You Know ? How the concept of the atom developed 3 2,500 years ago, Democritus suggested that all matter in the universe was made up of tiny, indivisible, solid objects he called atomos.

But What is the relationship between the velocity, wavelength, and frequency? 4 The wave form of energy is characterized by velocity, wavelength, and frequency.

So What are Classical mechanics and Quantum mechanics? 5 The branch of physics that deals with the motions of objects under the influence of forces is called mechanics.

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