Solids, Liquids and Gases - Density and Pressure Flashcards
1
Q
what is the relationship between density, mass and volume?
A
density = mass/volume
2
Q
how would you investigate density using direct measurements of mass and volume?
A
- the density of an object can be found by measuring the mass and volume
- for a regular object use a ruler to measure the lengths needed to determine the volume
- for an irregular object submerge it in a eureka can and measure the displaced volume.
- measure the mass using a measuring balance.
3
Q
what is the relationship between pressure, force and area?
A
pressure = force/area
4
Q
where does pressure in liquids/gases act?
A
pressure in liquids/gases acts equally in all directions as long as the liquid is not moving
5
Q
what is the equation for pressure difference?
A
pressure difference = density x g x height
