alleryStart learning →How is pressure defined in terms of force and area?
AForce multiplied by area
BForce divided by area
CArea divided by force
DForce divided by volume
Answer & Solution
Correct answer: B. Force divided by area
1. Pressure is defined as force divided by area, where the force acts perpendicular to that area.
2. Multiplying force by area, or dividing area by force, both give the wrong physical quantity.
3. Dividing force by volume gives a different quantity entirely, not pressure.
4. So force divided by area is correct.
_Source: OpenStax Physics (CC BY 4.0), Ch 12 "Thermodynamics", section 12.2 First law of Thermodynamics: Thermal Energy and Work_
Keep practising Thermodynamics
Browse all Thermodynamics questions for GCE O-Level (Singapore), or explore more Physics topics.
Related questions
What condition would be required for a heat engine to reach 100 percent thermal efficiencyIn the heat pump described, which component raises the temperature and pressure of the worA coal power station transfers 3.0 x 10^12 J by heat from burning coal and releases 1.5 x A coal power station operates at 40.0 percent efficiency and takes in 1.20 x 10^12 J by heA heat engine takes in 6.0 kJ of heat and produces 4.8 kJ of waste heat. What is its efficA heat engine is given 120 J of heat and releases 20 J of heat to the environment. How mucWhat is a cyclical process, as used to describe heat engines?What does a heat engine do?