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Pressure
Question | Answer |
---|---|
What is pressure caused by? | Force |
How can pressure on an object be increased? | (i) Increase the size of the force (ii) Decrease the size of the area that the force is acting on |
Define pressure. | pressure = force/area |
What is the unit of pressure? | Pascal (Pa) |
What does pressure in a liquid depend on? | Depth |
What happens to atmospheric pressure as height increases? | It decreases |
What is used to measure pressure? | A pressure gauge |
What is used to measure atmospheric pressure? | A barometer |
What are meteorologists? | Scientists who study and forecast the weather |
What kind of weather is present in areas of low pressure? | Wet and windy |
What kind of weather is present in areas of high pressure? | Dry and settled |
What are every day applications of pressure? | (i) flight (ii) hydraulics (iii) water supply system (iv) medicine |