What is pressure? What is its Sl unit? How do you increase the pressure by keeping?
(a) Area unchanged and (b) Force unchanged
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it's a 1 mark question (pls answer in 3lines atleast)
Answers
✿What is pressure
• Pressure, in the physical sciences, the perpendicular force per unit area, or the stress at a point within a confined fluid. ... In SI units, pressure is measured in pascals; one pascal equals one newton per square metre. Atmospheric pressure is close to 100,000 pascals.
✿SI Unit of pressure
Pascal (Pa)
• For pressure, the SI system's basic unit is Pascal (Pa), which is N/m² (Newton per square meter, while Newton is kgm/s²). Pascal is a very small pressure unit and for example, the standard atmospheric pressure is 101325 Pa absolute.
✿To increase pressure by keeping
• Pressure is directly proportional to Force and inversely proportional to Area. (a)By keeping area unchanged, we have to apply more Force to apply more pressure. (b)By keeping Force unchanged, we have to decrease the area to increase pressure.