density Flashcards
what is density
the mass of a substance per unit volume
what can density be measured in
kg/m^3 or g/cm^3
what is mass measured in
kg or g
what is the equation for density
p= m/v
what is volume measured in
m^3 or cm^3
what does P stand for
density
what is the method of measuring the density of regularly shaped objects
1.Place the object on a digital balance and note down its mass
- Use either the ruler, Vernier calipers or micrometer to measure the object’s dimensions (width, height, length, radius) – the apparatus will depend on the size of the object
- Repeat these measurements and take an average of these readings before calculating the density
what is the method for measurring the density of an irregularly shaped object
1.place the object on a digital balance and note down its mass
- Fill the eureka can with water up to a point just below the spout
- Place an empty measuring cylinder below its spout
- Carefully lower the object into the eureka can
5.Measure the volume of the displaced water in the measuring cylinder
6.Repeat these measurements and take an average before calculating the density
what apparatus is needed to measure the density of an irregular object
Digital balance
Eureka can / displacement can
A suitable liquid
Measuring cylinder
what apparatus is needed to measure the density of a regular object
Digital balance
ruler/ vernier calipers or micrometer
which state of matter has the lowest density
gas
which state of matter has the most kinetic energy
gas
which state of matter has particles that move freely
gas
which state of matter has particles that can flow over each other
liquid
which state of matter has the highest density
solid
which state of matter has the least kinetic energy
solid
which state of matter has particles that can only vibrate about a fixed position
solid
whaat is sublimation
when a soild turns straight into a gas without having to turn into a liquid
what is melting
when solid turns into a liquid
what is evaporatioing
when liquid turns into a gas
what is condesnsation
when gas turns into a liquid
which state of matter is arranged in a lattice structure/ regular arrangement
solid
which state of matter has an irregular arrangment
liquid
which state of matter has no fixed shape, cannot be easily compressed and can flow
liquid
which state of matter has a fixed shape, fixed volume and cannot be compressed
solid
which state of matter has no fixed shape, it can flow to fill its container and can be compressed
gas
