MJ15 P33 Q1 Hanging Card | AS Practical Paper 3 | May/June 2015 | CAIE A Level 9702 Physics
Автор: ETphysics
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9702/33/M/J/15: In this experiment, you will investigate how the position of a suspended card varies with the distribution of masses attached to it. This is based on the idea of center of mass!
#9702s15p3 #ASequilibriumP3Q1
0:25 Lab equipment check
3:09 Punching a hole using the nail
3:33 Mass of Card, C
5:08 Measuring 1cm for the hole
8:07 Poking the hole (be careful!)
10:48 How to Retort stand boss & clamp
11:56 How to set-up nail & card
13:08 How to plumb-line
14:30 Making your mark on the card
16:10 Repeat using the other hole.
17:30 Measure first y
19:24 Adding masses to card (Independent Variable)
25:13 My dudes, My ladies, we are finally ready
26:00 Marking ALLLL The other points
36:20 X marks the spot - find all the centres of mass (Dependent Variable)
42:12 Label and measure ALLLLL the y.
44:00 Results here
45:05 How to table
48:37 BONUS - using CALC in the calculator
49:40 Ta-dah, the graph & criterion
53:00 How to gradient
55:29 How to y-intercept
56:53 Graphical Analysis in finding A and B
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• Paper 3 AS Physics 9702 Lab Practical Skills
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9702_s15_qp33 Q1
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