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Pressure is the force per unit area of a surface, so the particles are exerting a pressure on the container. Pressure in a fluid causes a force at right angles (normal) to any surface. The pressure at a certain surface can be calculated using:
Questions and model answers on 1.9 Pressure for the CIE IGCSE Physics syllabus, written by the Physics experts at Save My Exams.
When measuring pressure, people often don't want to know the total pressure (which includes atmospheric pressure). People typically want to know the difference in some pressure from atmospheric pressure. The reason is that atmospheric pressure doesn't change much and it's almost always present.
Define pressure. Explain the relationship between pressure and force. Calculate force given pressure and area. You have no doubt heard the word pressure being used in relation to blood (high or low blood pressure) and in relation to the weather (high- and low-pressure weather systems).
Measurements of pressure are important in daily life as well as in science and engineering applications. In this section, we discuss different ways that pressure can be reported and measured. Gauge Pressure vs. Absolute Pressure.
Pressure Questions. 1) Define pressure. 2) Define 1 pascal. 3) What are the different types of pressure? 4) What are the factors that affect pressure? 5) What is absolute pressure?
This Question of Pressures: With John Tidmarsh, David Steel, Arthur Davidson, Philip Goodhart.
