M2.2 Cat A Pressure and Buoyancy

What does the symbol 'A' represent in the pressure formula P = F/A?

• Area

• Altitude

• Acceleration

• Amplitude

What is the unit of pressure in the imperial system?

• psi

• Pa

• N/m²

• hPa

What is the equivalent of 1 atm in pascals (Pa)?

• 50,000 Pa

• 101,325 Pa

• 200,000 Pa

• 75,000 Pa

What is the term for the vacuum created in the mercury barometer?

• Torricellian vacuum

• Atmospheric vacuum

• Barometric vacuum

• Absolute vacuum

What does absolute pressure measure?

• Pressure with particles

• Pressure with air

• Pressure of a vacuum

• Pressure with water

What happens when the buoyant force is more than the object weighs?

• The object floats

• The object sinks

• The object stays still

• The object moves sideways

What is neutral buoyancy?

• When an object's weight is equal to the weight of the fluid it displaces

• When an object floats

• When an object sinks

• When an object moves sideways

What is a moment?

• A type of time

• A force applied to make a body turn

• A unit of distance

• A kind of sound

What does a vector quantity have?

• Only direction

• Only magnitude

• Both magnitude and direction

• Neither magnitude nor direction

What is stress?

• A measure of temperature

• A measure of the load applied to a component

• A measure of speed

• A measure of time