Earlyface

If you want to Receive Our Physics Practical
Expo
Direct to your Phone as text (SMS) some
minutes before
the exam starts
( PHYSICS PRACTICAL )
Direct Mobile: N400 MTN Card .
Forward your ,MTN PIN,Subject Name,
Phone number to: jeffrey  ON 08054629149
NOTE: THAT DIRECT MOBILE CANDIDATES GETS
ANSWERS ON THEIR PHONES FIRST DURING
THE
EXAM

S/n: 1,2,3,4,5
L1: 20,40,60,80,100
L2: 10,15,25,35,45
I1(A): 0.50,0.40,0.32,0.22,0.14
I2(A): 0.58,0.53,0.45,0.41,0.37
I1^-1: 0.20,2.50,3.13,4.55,7.143 I2^1: 1.724,1.890,2.2
2,2.44,2.70 PRECAUTIONS: -I will ensure that the key
is
opened
when no reading is taken to
avoid
battery wastage.
-I ensured tight connection -I ensured error due to
parallax
when
taking
reading from the ameter
-i will ensure that the circuit
element are tightly connected to ensure
accurate result NEED TO KNOW: -Electromotive force
is the
potential
difference between the
terminals of
a cell when no current is
flowing in the circuit.


QUESTION 1 Reading
S/n:1,2,3,4,5,6
L(cm):150.0,120.0,100.0,80.0,60.0,40.0
t(sec):4.800,4.100,3.300,2.600,1.900,1.200
t^-1(Sec^-1):0.208,0.244,0.303,0.385,0.526,0.833
t^2(sec^2):23.40,16.81,10.89,6.76,3.61,1.44
L/t^2(m/s^2):6.510,7.139,9.183,11.83,16.6,27.7
Precautions
- I ensured the experiment was not affected by air
interference when determining the balance points
- I ensured the mass roll down freely as being
influenced under gravity
- I ensured that the readings were taken without any
error.....

(3aiii)
Values of I
I1=0.75A
I2=1.00A
I3=1.25A
I4=1.5A
I5=1.75A
(3aiv)
Values of d
d= M - m
d1= M1-m1=1.758 - 1.755=0.003gm
d2=M2-m1=1.773 - 1.758=0.014gm
d3=M3-m3=1.777 - 1.761=0.016gm
d4=M4-m4=1.792 - 1.764=0.028gm
d5=M5-m5=1.799 - 1.766=0.033gm
(3av)
Z=It
Z1= I1T1= 0.75 * 10= 7.5As
Z2= I2T2=1.00 * 12=12As
Z3=I3T3= 1.25*15=18.75As
Z4=I4T4=1.5 * 17.5=26.25As
Z5=I5T5=1.75 * 20=35As
(3avi)
S/N: 1,2,3,4,5
mi(gm): 1.755, 1.759, 1.761, 1.764, 1.766
Mi(gm): 1.758, 1.773, 1.777, 1.792, 1.799
t(s): 10.000, 12.000, 15.000, 17.500, 20.000
I(A): 0.750, 1.000, 1.250, 1.500, 1.750
d(gm): 0.003, 0.014, 0.016, 0.028, 0.033
Z(As): 7.500, 12.000, 18.750, 26.250, 35.000

1ai)
d1=5.9cm
d2=4.8cm
d3=3.65cm
d4=3.7cm
d5=1.50cm
Real values of di
d1=73.75cm
d2=60cm
d3=45.625cm
d4=46.25cm
d5=1.50*12.5=18.75cm
(1aii)
t1=5s
t2=4s
t3=3.5s
t4=3s
t5=2.5s
(1aiii)
W=d/t
w1=d1/t1 = 73.75/5=14.75cm/s
w2=d2/t2 = 60/4= 15cm/s
w3= d3/t3 = 45.625/3.5= 13.04cm/s
w4=d4/t4= 46.25/3 = 15.42cm/s
w5=d5/t4 = 18.75/2.5 =7.5cm/s
(1aiv)
v=2w
v1= 2*14.75 =29.50cm/s
v2= 2*15= 30cm/s
v3=2*13.04=26.08cm/s
v4=2*15.42=30.84cm/s
v5=2*7.5=15.00cm/s

(1avi)
slope(s)= v2 -v1/t2 - t1 = 30.84 -30.00/3-4 =-0.84cm/s
(1aviii)
Slopes shows the decebration of the spherical
marble
(1ix)
1. i will ensure the spherical marble does not slip
from the inclined plane
2. i will ensure the pile of tissue stop the spherical
marble to obtain accurate result

I would update u about that later

Inbox me with Biology both Essay and objective with this 08184077397 pls