practical determining density Flashcards
what can be used to measure dimensionsnof an object
ruler, micrometer, or vernier callipers
how do you determine the volume of a regualryl shaped object
measure dimensions
how do you determine volume of an irregularly shaped object
displacement technique
what apparatus is used to measure mass
balance
to calculate density what two measurements do you need
mass and volume
what is the formula to calculate density
mass/volume
how do you determine the volume of an irregularly shaped object
add it to a displacement can filled of water, add the object collecting the displaced water in a measuring cylinder, the volume of water collected is the volume of the object
what is the unit for mass
g
what is thr unit of volume
cm cubed
what is the unit for density
g/cm cubed
how do you determine mass of a liquid
add a beaker to a balance and det to 0, then add liquid recording the mass
what is the density of water
1g/ cmcubed
what piece of equipment can be used to measure lenghts more accurately than a ruler
vernier callipaers
what js the resolution of a ruler
1mm
what happens yo accuracy when higher resolution apparatus is used
increases
what is zero error
when a piece of apparatus gives a false reading whem the true value is 0
how can a zero error on a ablance be connected
record the calue on the balance when it should be zero, subtract this value from each mass recorded
when measuring the volume of an irregularly shaped object how many an error occur
the water level not at the same level as the spout, not all the displcaed water is collected in the measuring cylinder, eye position too high or low when measuring volume
