GCSE Physics Required Practical: Calculating Densities - Revision history

NRJC: /* Improving Precision */

2019-11-23T09:19:05Z

‎Improving Precision

2019-11-23T09:18:49Z

‎Improving Precision

2019-10-17T08:35:17Z

‎Improving Accuracy

2019-10-17T08:33:56Z

‎Improving Precision

2019-10-17T08:31:51Z

‎Improving Precision

2019-09-02T19:12:50Z

‎Improving Precision

2019-09-02T19:11:51Z

‎Improving Precision

2019-09-02T19:10:58Z

‎Improving Precision

2019-05-02T12:39:36Z

‎Experiment 1: Regular Cuboid

2019-04-13T11:36:16Z

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 ====Improving [[Precision]]====
 : Ensure no [[water]] is spilled from the [[Measuring Cylinder|measuring cylinder]] so that all repeat readings are the same.
 : Measure the 'dry' [[mass]] of the [[object]] to ensure repeat readings are not affected by [[water]] permeating the [[object]].

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 ====Improving [[Accuracy]]====
 : Place the [[Electronic Balance|electronic balance]] on a flat, level surface to get an [[accurate]] reading of the [[mass]].
 ===Experiment 1: Irregular Solid===

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 : Place the [[Electronic Balance|electronic balance]] on a flat, level surface to get an [[accurate]] reading of the [[mass]].
 : Place the [[Measuring Cylinder|measuring cylinder]] on a flat, level surface and read it from eye level to get an [[accurate]] reading of the [[Volume (Space)|volume]] of [[water]].
 ====Improving [[Precision]]====

← Older revision		Revision as of 08:33, 17 October 2019
Line 46:		Line 46:

	====Improving [[Precision]]====		====Improving [[Precision]]====
−	: Use a larger [[~~object~~]] ~~to reduce~~ the [[~~uncertainty~~]] ~~caused by~~ the [[resolution]] of the [[Measuring Cylinder\|measuring cylinder]].	+	: Use a larger and more massive cuboid to reduce the [[uncertainty]] of the [[Electronic Balance\|electronic balance]] and the [[Measuring Cylinder\|measuring cylinder]] so that repeat readings are likely to be the same given the [[resolution]] of the instruments.
		+	: Ensure no [[water]] is spilled from the [[Measuring Cylinder\|measuring cylinder]] so that all repeat readings are the same.
		+	: Measure the 'dry' [[mass]] of the [[object]] to ensure repeat readings are not affected by [[water]] permeating the [[object]].

@@ Line 21: / Line 21: @@
 ====Improving [[Precision]]====
-: Use a larger cuboid to reduce the [[uncertainty]] caused by the [[resolution]] of the [[Electronic Balance|electronic balance]] or [[Measuring Scale|measuring scale]].
+: Use a larger and more massive cuboid to reduce the [[uncertainty]] of the [[Electronic Balance|electronic balance]] and the ruler so that repeat readings are likely to be the same given the [[resolution]] of the instruments.
 ===Experiment 1: Irregular Solid===

← Older revision		Revision as of 19:11, 2 September 2019
Line 46:		Line 46:

	====Improving [[Precision]]====		====Improving [[Precision]]====
−	: Use an [[~~Electronic Balance\|electronic balance~~]] ~~with a higher~~ [[resolution]].	+	: Use a larger [[object]] to reduce the [[uncertainty]] caused by the [[resolution]] of the [[Measuring Cylinder\|measuring cylinder]].

← Older revision		Revision as of 19:10, 2 September 2019
Line 21:		Line 21:

	====Improving [[Precision]]====		====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 Instrument\|measuring instruments]].		: Use a larger cuboid to reduce the [[uncertainty]] caused by the [[resolution]] of the [[Measuring Instrument\|measuring instruments]].

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 Finding the [[density]] of [[solid]] [[object]]s.
-===Experiment 1: Regular Cuboid===
+===Experiment 1: 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.
+| style="height:20px; width:200px; text-align:center;" |A [[diagram]] of the [[apparatus]] used in an [[experiment]] to find the [[density]] of a cuboid.
 |}

@@ Line 1: / Line 1: @@
 ==Key Stage 4==
 ===Meaning===
 Finding the [[density]] of [[solid]] [[object]]s.