HOME WAEC NECO NABTEB Contact

### BE OUR WAEC, GCE JAMB CBT AGENT AND MAKE MONEY FROM IT CLICK HERE

Quick Contact
WHATSAP/SMS 09061831432 OR 08127522942

 S/LEONE WASSCE PAGE GHANA WASSCE PAGE

# WAEC GCE 2019/2020 PHYSICS PRACTICAL EXPO QUESTIONS AND ANSWERS

_2019 WAEC GCE ALT TO PRACTICAL ON PHYSICS_

(1v) Slope (s) = Change in Y/Change in X = Y2 – Y1/X2 – X1

= 26.8-10.6/22.6/9.8 =16.2/12.8
S = 1.266

(1vi) If S = 1.266
Then K=1/1.266 = 0.790

(1vii)
– I would ensure that the reading was taking from the meniscus level before taking my reading
– I would have ensured that the tubes are vertical upright before carrying out the experiment for accuracy

(1bi) Pressure : It is the force applied per unit area. It is measured in N/m^2. Pressure = Force/Area

(1bii) Relative density of E = Y/X = 15/10
= 1.5

================

2bii. resonance is a phenomenon that only occurs when the frequency at which a force is periodically applied is equal or nearly equal to one of the natural frequencies of the system on which it acts.

==============

(3)
*TABULATE*

(i) 1,2,3,4,5,

R(Ohms) : 2.0, 4.0, 6.0, 8.0, 10.0

OP(i)[cm] : 3.70, 4.30, 5.00, 5.40, 5.70

Xi(cm) : 18.50, 21.50, 25.0, 27.0, 28.50

X^-1: 0.054, 0.047, 0.040, 0.037, 0.035

R^-1: 0.500, 0.250, 0.167, 0.125, 0.100

_OR_

*TABULATE*
i:1,2,3,4,5
Ri(ohm):2.0,4.0,6.0,8.0,10.0
OP(l)(cm):3.70,4.30,5.00,5.40,5.70
xi(cm):18.50,21.50,25.00,27.00,28.50
x^-1:0.054,0.047,0.040,0.037,0.035
R^-1:0.500,0.250,0.167,0.125,0.100
OR THIS TABLE
(3)
(i)|Ri |OP(cm)|xi(cm)|X-¹|R-¹
1 |2.0| 3.70|18.50|0.054|0.500
2 |4.0| 4.30|21.50|0.047|0.250
3 |6.0| 5.00|25.00|0.040|0.167
4 |8.0| 5.40|27.00|0.037|0.125
5 |10.0|5.70|28.50|0.035|0.100
*DRAW THE GRAPH* of x^-1 against R^-1
(3bii)
E1=E2
L1=L2
E2L1=E1L2
where E1=IV
E2=?
L1=50cm
L2=72cm
50E2=72
E2=72/50
E2=1.44v
(3iv) Slope, s= Δx^-1/ΔR^-1 =(50-30)*10^-3/0.29-0.04

= 20*10^-3/0.25 = 0.02/0.25
=0.08

Intercept, c = 26.5*10^-3 = 0.0265

(3vi) K2 =1/c = 1/0.0265 =37.74
K2 = 5/c = 0.08/0.0265
= 3.02

(3viii)
– I would ensure tight connection
– I would ensure clean terminals

(3bi)
– Hyper accuracy
– No errors in readings associated with the use of a pointer in a voltmeter

### Note: WAEC GCE PAYMENT IS ON NOW, SUBSCRIBE FOR IT TO GET

DAILY SUBSCRIPTION FEE FOR BIOLOGY ANSWERS

WhatsApp Message: #500 MTN CARD

OUR DELIVERY PATTERN:

package we send you the password to unlock
an answer page and access your

—————————-
WhatsApp Message: In this
on WhatsApp were we will post answers to
you.

HOW TO SUBSCRIBE OR MAKE PAYMENT

Send

Subject Name (e.g Health edu),
MTN Recharge Card Pin(s)
and
09061831432 YOU CAN ADD US ON WHATSAPP 09061831432
Please don’t call, just send us text
message, We don’t attend to calls because of too many calls. We are always busy.

Categories: Gce