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Waec 2017 Physics Practical Answers – May/June Expo

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1axi)
i)ensured supports of pendula
were rigged

ii)avoided parallax error on meter
rule/stop watch

1bi)
simple harmonic motion is the
motion of a body whose
acceleration is always direct
towards a fixed point and is
proportional to the displacement from the fixed points

1bii)
T=1.2secs
Log 1.2=0.079
0079 shown on graph with
corresponding Log L read L
correctly determined =================================

3axi)
i)ensured clean/tight terminals
ii)open key when reading was
taken

3bi)
i)brightness of the bulb increases
ii)voltage/current through the
bulb increases

3bii)
i)diode
ii)transistor

Typing….


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1 Comment

  1. Levoro

    April 3, 2017 at 6:15 pm

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