2015 Waec Specimen

By 01:21 Wed, 25 Mar 2015 Comments


BIOLOGY SPECIMEN

GROUP I

specimen A: twig of mango plant

specimen B: twig of ixora plant

specimen C: leaf of Hibiscus plant

specimen D: hibiscus flower

specimen E: green vegetable cut beef

specimen F: a piece of freshly cut beef

specimen G: worker bee (wet preserved)

specimen H: soldier termite (wet preserved)

specimen J: adult cockroach (wet preserved)

specimen K: nymph of cockroach (wet preserved)

specimen L: young toad (freshly preserved)

specimen M: quill feather

specimen N: scale of bony fish

specimen P: freshly preserved mammalian skin preferably of

goat or ram with hair/fur measuring at least 4cm by 4cm placed in a petric dish....

GROUP II

specimen Q: slide of Hydra

specimen R: small mammal

(rat/rabbit/Guinea pig),wet

preserved

GROUP III

specimen S: a small amount of garden soil in a petri dish

specimen T: orange/lemon/ lime/citrus fruits

specimen V: tomato fruit specimen W: cassava tuber

specimen Xi: stem of young cassava plant measuring at least 10cm in length

specimen Xii stem of young cassava plant measuring at least 10cm in length as in xi

N.B:

(i)SPECIMEN Q AND R are peculiar to candidates in Ghana only and should not be provided for candidates in Nigeria, Sierra Leone and the Gambia

(ii)SPECIMEN S,T,V,W,Xi,Xii are peculiar to candidates in

Nigeria, Sierra Leone and the Gambia only and should not be provided for candidates in Ghana....

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

AGRICULTURAL SCIENCE SPECIMEN

specimen A: Born specimen B: Horn

specimen C: Hoof

specimen D: Water (labelled)

specimen E: Cowpea seeds

specimen F: Tridax

specimen G: Goat weed specimen H: Sida

specimen I: spear grass

specimen J: Elephant grass

specimen K: pig weed

specimen L: water leaf

specimen M: urea (labelled) specimen N: compost manure

(labelled)

specimen O: NPK 15 : 15 : 15

specimen P: electric bulb

specimen Q: garden fork

specimen R: hand trowel specimen S: knapsack sprayer

specimen T: rat

specimen U: termite

specimen V: earthworm

specimen W: paddy rice

specimen X: groundnut seeds specimen Y: maize stem borer

specimen Z: grasshopper.

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

CHEMISTRY SEPCIMENS

-dilute sodium hydroxide

solution

-dilute ammonia solution

-dilute hydrochloric acid

-distilled water

-red and blue litmus paper -fehlings solution(I II)

-concentrated

tetraoxosulphate

(vi) solution

(H2SO4):

:::-freshly prepared iron

(II) tetraoxosulphate

(VI) solution (Fe2SO4)

-burette(50cm 3), pipette

(20cm 3 or 25cm 3),filtration

apparatus -methyl orange

-boiling tube, test tubes,

-SALTS: CuO,ZnSO4,Na2CO3

NOTE:- (i)SPECIMEN Q AND R are peculiar to candidates in Ghana only and should not be provided for candidates in Nigeria, Sierra Leone and the Gambia

(ii)SPECIMEN S,T,V,W,Xi,Xii are peculiar to candidates in Nigeria, Sierra Leone and the Gambia only and should not be provided for candidates in Ghana:::

PHYSICS PRACTICAL SOLUTION SET

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

PLS NOTE THAT THESE ARE NOT THE REAL PHYSICS PRACTICAL ANSWERS BUT IS JUST A GUIDE TO PHYSICS PRACTICAL.

IT WILL HELP YOU TO STUDY YOUR PHYSICS PRACTICAL.

THEY ARE ASSUMED OR LIKELY QUESTIONS AND ANSWERS.

==========

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

DEFINITIONS YOU NEED TO KNOW:

FORCE OF GRAVITY: The total

gravitational force which acts on a body and so enables it,in turn to exert an equal force on its support

DISPLACEMENT: This Is defined as the distance moved in a specified direction

NEWTONIAN MECHANICS: This is

defined as the rate of change of distance moved with time in a specified direction or rate of change of displacement

UNIFORM VELOCITY: A body moved

with uniform velocity if its rate of change of distance moved with time in a specified direction is constant

ACCELERATION: This is defined asthe rate of change of velocity with time

INERTIA: The tendency of a body to remain at rest or if moving,to continue its motion in a straight line

UNIFORM ACCERATION: A body moved with uniform acceleration,ifits rate of change of velocity with time in a

specified direction is constant

DECCELERATION: A decreasing velocity or slowing down is usually called retardation.::::::

QUESTION 2

Readings: S/n: 1,2,3,4,5,6,7

D: 100,90,80,70,60,50,40

D^2:

10000,8100,6400,4900,3600,2500,16

X1:

80.60,70.20,59.10,47.80,29.00,20.35, X2:

18.30,19.00,20.00,22.00,7.60,4.50,1.0

L

(X1-X2):

62.20,51.20,39.10,24.70,21.40,15.85,

PRECAUTIONS: -i ensured parallax when reading

the metre rule.

-i ensured that the intensity or source of light was maintained.

Expected Question: An illuminated object is placed on the

axis of a converging lens and a magnified image is obtained on the screen.

If the distance of the image from the lens is 45cm and the

magnification is 2,cal the focal length of lens.

SOLUTION:

V=45.00cm

m=2

u=?

M=v/u=45/2

22.5cm F=uv/v+u

22.5*45.00/22.5+45.00

=1012.5/67.5

=15cm

:::::::.QUESTION

3 Readings:

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: 1.724,1.890,2.22,2.44,2.70

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.

=======

NOTE THAT ^ MEANS RAISE TO

POWER.

Eg: 2^4 Means 2 raise to power 4.

L^-2 means L raise to power

-2(minus two)

-COMMA MEANS NEXT LINE. Eg: x: 4,2,3,4,5 means that you

draw a table, then under x, you

will get 4, under 4 is 2, under 2 is

3, under 3 is 4 and so on..........


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