Density
the amoun t o mass per unit volume
it measUre the compoctn ess a subs tance
density Mass (ka )
(rg/m) volume (m 3)
In Solid portcles tightlypacked , vibrate in fued postioas
liquid partcdes tightlypacked,free to
move past eachother
gas Particlesspread out, moy e randomly
LOw DENSITY HIGH DENSITY
,
9as liquid Solid
Measurng Jensty - Required practical
Solids
Regular
USe ruler to MeasUYe w,h stee Cube and measure mass
volume lxw h
verniercallipers
to measure sphere dia metee
meaSur es internallexternal diametes to precinon (o.ol e3)
measure mass balance
calcula
te Volume
Trregulot solids
measure object Mass
fiu displacementCan until water s level withbottom of spout
under spout fo collect displaced water
place measuring ylinder
carefuly put solid displacement Can
and wait til more water rvns
into cylnder
Measure volume displaced water
*
water calulatedensity
object Mass and
USe volune of displac
ed
Liquids 3
Place cylhnder balance and set to 0 1 ml 4 om
measuring
1Dml water and ecord mass
pou
, No.
Date 0812 29
andfuids
Pressure,inliguids
pressure is force eyerted per unit area
FA
pressure force (N) pressue fluids
(a) area (m2)
(iquid/gas)
Pressure liqvids
inreases as depth increases
incceases as
density increas
es
hpg
pressure heiqht liq
uid density fieldstrength
qravitational
(Pa) (kylm')
Uptheust, floutingand sinking
An obiect partly or completly submerged expenènces greaterpressure on hottom
than top suface
4his causes vesultanfforee upwards Up thrust
up thrust tqual to the weight E
oid dsplaced by object
upthvust < ) sinks
ect sinks./partially till
forces
b alance
~> when densitys
water dispaced
-An
- ifabj ect density<
object dispaces its own
ater displac
ed
Yolume
weight
water
< rvs
uplhrvs
plh >ob,ecf rises.
the amoun t o mass per unit volume
it measUre the compoctn ess a subs tance
density Mass (ka )
(rg/m) volume (m 3)
In Solid portcles tightlypacked , vibrate in fued postioas
liquid partcdes tightlypacked,free to
move past eachother
gas Particlesspread out, moy e randomly
LOw DENSITY HIGH DENSITY
,
9as liquid Solid
Measurng Jensty - Required practical
Solids
Regular
USe ruler to MeasUYe w,h stee Cube and measure mass
volume lxw h
verniercallipers
to measure sphere dia metee
meaSur es internallexternal diametes to precinon (o.ol e3)
measure mass balance
calcula
te Volume
Trregulot solids
measure object Mass
fiu displacementCan until water s level withbottom of spout
under spout fo collect displaced water
place measuring ylinder
carefuly put solid displacement Can
and wait til more water rvns
into cylnder
Measure volume displaced water
*
water calulatedensity
object Mass and
USe volune of displac
ed
Liquids 3
Place cylhnder balance and set to 0 1 ml 4 om
measuring
1Dml water and ecord mass
pou
, No.
Date 0812 29
andfuids
Pressure,inliguids
pressure is force eyerted per unit area
FA
pressure force (N) pressue fluids
(a) area (m2)
(iquid/gas)
Pressure liqvids
inreases as depth increases
incceases as
density increas
es
hpg
pressure heiqht liq
uid density fieldstrength
qravitational
(Pa) (kylm')
Uptheust, floutingand sinking
An obiect partly or completly submerged expenènces greaterpressure on hottom
than top suface
4his causes vesultanfforee upwards Up thrust
up thrust tqual to the weight E
oid dsplaced by object
upthvust < ) sinks
ect sinks./partially till
forces
b alance
~> when densitys
water dispaced
-An
- ifabj ect density<
object dispaces its own
ater displac
ed
Yolume
weight
water
< rvs
uplhrvs
plh >ob,ecf rises.
