What is the formula for pressure?
Pressure = Force / Area
True or False: Pressure increases when the area over which a force is applied decreases.
True
Fill in the blank: The unit of pressure in the SI system is _____
Pascal (Pa)
What is the pressure exerted by a 10 N force applied over an area of 2 m²?
5 Pa
What is atmospheric pressure at sea level approximately equal to?
101,325 Pa
Multiple choice: Which of the following is NOT a unit of pressure? A) Pascal B) Bar C) Newton D) Atmosphere
C) Newton
True or False: When a gas is compressed, its pressure decreases.
False
What happens to the pressure of a gas if its volume decreases while the temperature remains constant?
The pressure increases.
Fill in the blank: The pressure in a fluid at a certain depth is caused by the weight of the _____ above it.
fluid
What is the relationship between pressure and temperature in gases at constant volume?
Pressure increases with temperature.
Multiple choice: Which equation relates pressure (P), volume (V), and temperature (T) for an ideal gas? A) PV = nRT B) P = F/A C) P = V/T D) P = T/V
A) PV = nRT
True or False: Pressure acts equally in all directions in a fluid.
True
What is hydrostatic pressure?
The pressure exerted by a fluid at rest due to the weight of the fluid above it.
Fill in the blank: The pressure at a depth ‘h’ in a fluid of density ‘ρ’ is given by the formula _____
P = ρgh
What is the effect of altitude on atmospheric pressure?
Atmospheric pressure decreases with increasing altitude.
