Ch-07: Properties of Matter

Ch-07: Properties of Matter 

After studying this unit, the students will be able to:

• State kinetic molecular model of matter (solid, liquid and gas forms).
• Describe briefly the fourth state of matter, i.e plasma.
• Define the term density.
• Compare the densities of a few solids, liquids and gases.
• Define the term pressure (as a force acting normally on unit area).
• Explain how pressure varies with force and area in the context of everyday examples.
• Explain that the atmosphere exerts a pressure.
• Describe how the height of a liquid column may be used to measure the atmospheric pressure.
• Describe that atmospheric pressure decreases with the increase in height above the Earth's surface.
• Explain that changes in atmospheric pressure in a region may indicate a change in the weather.
• State Pascal's law.
• Apply and demonstrate the use with examples of Pascal\'s law.
• State relation for pressure beneath a liquid surface to depth and to density.
• State Archimedes principle.
• Determine the density of an object using Archimedes principle.
• State the uphtrust exerted by a liquid on a body.
• State principle of floatation
• State Hooke's law and explain elastic limit.

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