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Created page with "==Key Stage 4== ===Meaning=== Finding the density of solid objects. ===Experiment 1: Regular Cuboid=== ====Method==== {| class="wikitable" |- |File:RequiredPrac..."
==Key Stage 4==
===Meaning===
Finding the [[density]] of [[solid]] [[object]]s.
===Experiment 1: Regular Cuboid===
====Method====
{| class="wikitable"
|-
|[[File:RequiredPracticalDensity1.png|center|400px]]
| style="height:20px; width:200px; text-align:center;" |A [[diagram]] of the [[apparatus]] used in an [[experiment]] to find the [[density]] of a regular [[cuboid]].
|}
#Measure the [[mass]] of the [[cuboid]] using an [[Electronic Balance|electronic balance]] or [[Measuring Scale|measuring scale]].
#Measure the length, width and height of the [[cuboid]] using a [[ruler]].
#Multiply the length, width and height to calculate the [[Volume (Space)|volume]].
#Use the equation <math>\rho = \frac{m}{V}</math> to calculate the [[density]] of the [[cuboid]].
====Improving [[Precision]]====
: Use a [[ruler]] with a higher [[resolution]].
: Use an [[Electronic Balance|electronic balance]] with a higher [[resolution]].
: Use a larger [[cuboid]] to reduce the [[uncertainty]] caused by the [[resolution]] of the [[measuring]] devices.
===Experiment 1: Irregular Solid===
====Method====
{| class="wikitable"
|-
|[[File:RequiredPracticalDensity1.png|center|400px]]
| style="height:20px; width:200px; text-align:center;" |A [[diagram]] of the [[apparatus]] used in an [[experiment]] to find the [[density]] of an irregular [[solid]].
|}
#Measure the [[mass]] of the [[object]] using an [[Electronic Balance|electronic balance]] or [[Measuring Scale|measuring scale]].
#Fill a [[Measuring Cylinder|measuring cylinder]] with enough [[water]] to [[submerse]] the [[object]].
#Take a [[reading]] of the [[Volume (Space)|volume]] of [[water]] in the [[Measuring Cylinder]].
#Place the [[object]] in the [[Measuring Cylinder]] and ensure it is [[submerse]]d.
#Take a [[reading]] of the [[Volume (Space)|volume]] of [[water]] + [[object]] in the [[Measuring Cylinder]].
#Subtract the [[Volume (Space)|volume]] of [[water]] from the [[Volume (Space)|volume]] of [[water]] + [[object]] to find the [[Volume (Space)|volume]] of the [[object]].
#Use the equation <math>\rho = \frac{m}{V}</math> to calculate the [[density]] of the irregular [[object]].
====Improving Accuracy====
: Ensure the [[mass]] is [[measure]]d at the start of the [[experiment]] so that the [[mass]] is [[measure]]d while the [[object]] is dry.
====Improving [[Precision]]====
: Use an [[Electronic Balance|electronic balance]] with a higher [[resolution]].
: Ensure [[object]]
===Meaning===
Finding the [[density]] of [[solid]] [[object]]s.
===Experiment 1: Regular Cuboid===
====Method====
{| class="wikitable"
|-
|[[File:RequiredPracticalDensity1.png|center|400px]]
| style="height:20px; width:200px; text-align:center;" |A [[diagram]] of the [[apparatus]] used in an [[experiment]] to find the [[density]] of a regular [[cuboid]].
|}
#Measure the [[mass]] of the [[cuboid]] using an [[Electronic Balance|electronic balance]] or [[Measuring Scale|measuring scale]].
#Measure the length, width and height of the [[cuboid]] using a [[ruler]].
#Multiply the length, width and height to calculate the [[Volume (Space)|volume]].
#Use the equation <math>\rho = \frac{m}{V}</math> to calculate the [[density]] of the [[cuboid]].
====Improving [[Precision]]====
: Use a [[ruler]] with a higher [[resolution]].
: Use an [[Electronic Balance|electronic balance]] with a higher [[resolution]].
: Use a larger [[cuboid]] to reduce the [[uncertainty]] caused by the [[resolution]] of the [[measuring]] devices.
===Experiment 1: Irregular Solid===
====Method====
{| class="wikitable"
|-
|[[File:RequiredPracticalDensity1.png|center|400px]]
| style="height:20px; width:200px; text-align:center;" |A [[diagram]] of the [[apparatus]] used in an [[experiment]] to find the [[density]] of an irregular [[solid]].
|}
#Measure the [[mass]] of the [[object]] using an [[Electronic Balance|electronic balance]] or [[Measuring Scale|measuring scale]].
#Fill a [[Measuring Cylinder|measuring cylinder]] with enough [[water]] to [[submerse]] the [[object]].
#Take a [[reading]] of the [[Volume (Space)|volume]] of [[water]] in the [[Measuring Cylinder]].
#Place the [[object]] in the [[Measuring Cylinder]] and ensure it is [[submerse]]d.
#Take a [[reading]] of the [[Volume (Space)|volume]] of [[water]] + [[object]] in the [[Measuring Cylinder]].
#Subtract the [[Volume (Space)|volume]] of [[water]] from the [[Volume (Space)|volume]] of [[water]] + [[object]] to find the [[Volume (Space)|volume]] of the [[object]].
#Use the equation <math>\rho = \frac{m}{V}</math> to calculate the [[density]] of the irregular [[object]].
====Improving Accuracy====
: Ensure the [[mass]] is [[measure]]d at the start of the [[experiment]] so that the [[mass]] is [[measure]]d while the [[object]] is dry.
====Improving [[Precision]]====
: Use an [[Electronic Balance|electronic balance]] with a higher [[resolution]].
: Ensure [[object]]