Question

Define pressure. What is the relation between pressure, force and area? State the units in which pressure is measured. Write the factors on which atmospheric pressure depends.​

Answer 1

Common symbols

p, P

SI unit

Pascal [Pa]

In SI base units

1 N/m2, 1 kg/(m·s2), or 1 J/m3

Derivations from

other quantities

p = F / A

Dimension

M L−1 T−2

Answer 2

Answer:

Force applied per unit area is known as pressure

Pressure ∝ force

Pressure ∝ 1/area

Pressure can be measured in Pascal(S.I. unit) or erg (1 Pa = 10⁷erg) or in bar

(1 Pa = 1/100000 bar)

Pressure depends upon the altitudes as the pressure of gas changes with a change in density. It also depends on the temperature as the gas compresses or expands with a change in temperature resulting in a change in pressure.

hope it helps :)