Objectives

• After studying this unit, you should be able to
• define temperature.
• make conversions between the Fahrenheit and Celsius scales.
• describe molecular motion at absolute zero.
• define the British thermal unit.
• describe heat flow between substances of different temperatures.
• explain the transfer of heat by conduction, convection, and radiation.
• discuss sensible heat, latent heat, and specific heat.
• state atmospheric pressure at sea level and explain why it varies at different elevations.
• describe two types of barometers.

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