5bDensity and pressure

Syllabus objectives

• 5.3know and use the relationship between density, mass and volume: massdensity volume= V m=ρ
• 5.4practical: investigate density using direct measurements of mass and volumePractical
• 5.5know and use the relationship between pressure, force and area: forcepressure area= A Fp =
• 5.6understand how the pressure at a point in a gas or liquid at rest acts equally in all directions
• 5.7know and use the relationship for pressure difference: pressure difference = height × density × gravitational field strength p = h × ρ × g