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Waec 2018 Physics Practical Answers – May/June Expo
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Posts: 14
chidusky
chidusky (m)
1 year ago


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1)
Tabulate
S/n 1,2,3,4,5
L(cm) 90.00,80.00,70.00,60.00,50.00
T(s) 38.30,35.40,33.40,29.60,27.50
T=t/20(s) 1.92,1.77,1.67,1.48,1.38
sqrL(cm^1/2) 9.49,8.94,8.37,7.75,7.07
[/color]

1vii)
CLICK HERE FOR THE GRAPH IMAGE

1ix)
slope (s) = D vertical/D horizontal
= 1.90-155/9.49-775
=0.35/1.75
s=0.201

1x)
g=4^2/s^2
=4*(3.142)^2/(0.201)^2
=977.4cm1s^2

1xii)
-precautions-
Take Any Two
i)I avoided conical oscillation
ii)I avoided drought
iii)I avoided parallax error in taking reading from the metre rule
iv)I avoided zero error in taking reading from the stop watch
============================

3)
Tabulate
s/n 1,2,3,4,5
D(cm) 25,35,50,65,80
I(A) 1.99,1.75,1.55,1.44,1.36
I^(A^-1) 0.530,0.571,0.645,0.694,0.735
Lo(j^) -0.2984,-0.2434,-0.1904,-0.1586,-0.1337

3iii)
CLICK HERE FOR THE GRAPH IMAGE

3viiii)
slope Dvertical/Dhorizontal
=1.41-1.00/80-25
=0.4/55
S=0.00727

3x)
from the graph C=32cm

3xi)
K=c/2=33/2=16cm

3xii)
-precautions-
take any two
i)I removed key when reading is not taking
ii)I ensured tight connections at the terminals
iii)I avoided parallax error when taking reading from the ammeter.

3bii)
i)length - longer wires have greater resistance.
ii)thickness - smaller diameter wires have greater resistance.
============================

COMPLETED..
abdulmuhyi
abdulmuhyi (m)
1 year ago

thank you
modulus
modulus (m)
1 year ago
Ple help me oo
icia
icia (m)
1 year ago
That's unfair. How do you expect those without mtn lines to benefit. I sent you card you said my some has to be mtn were as I am in a place with totally no mtn network. Rubbish
chidusky
chidusky (m)
1 year ago
icia:

That's unfair. How do you expect those without mtn lines to benefit. I sent you card you said my some has to be mtn were as I am in a place with totally no mtn network. Rubbish

My friend,
I didn't say such.
I said we are only accepting mtn card payment.
modulus
modulus (m)
1 year ago
Update it na
Baloexpress
Baloexpress (m)
1 year ago
tanks a lot
Auwal
Auwal (m)
1 year ago
U need question 3 graph
livingtruth
livingtruth (m)
1 year ago
nice short
u are the best site
Suleiman
Suleiman (m)
1 year ago
Question 2
Ibb
Ibb (m)
1 year ago
Thank you
Riov
Riov (m)
1 year ago
great noniwap for winners like me
Johnson
Johnson (m)
1 year ago
nice one guys.
looking 4ward in receiving my Lit In English Password.
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