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GET A BETTER GRADE NOW!
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WE ARE ONCE AGAIN ANNOUNCING TO STUDENTS WHO WANTED A BETTER GRADE BUT THEY COULDN'T MAKE IT. UPGRADING OF RESULTS IS STILL ONGOING TO BACK UP THE GREAT PERFORMANCE IN THIS YEARS WASSCE. AND ALSO, BUYING/GENERATION OF GRADES AND CERTIFICATES ARE ALSO IN PROGRESS...
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WAEC RESULTS 2018/19 WASSCE UPGRADING ON THE JUST RELEASED RESULTS AND THE PERFOMANCES ARE POOR. AND THE SAFER UPGRADING OF RESULTS HAD STARTED AND AM HERE TO INFORM YOU ABOUT THE NEW POLICY!!! WAEC GH HAS ENDORSED ON THE THE CURRENT UPGRADING OF RESULTS IN THE SYSTEM BASED ON THE LIKELY POOR PERFOMANCES OF CANDIDATES EVERY YEAR DUE TO EXAM MALPRACTICES .WE ARE DOING THIS TO HELP YOU BETTER UP YOUR GRADES AND FOR_GO THE BURDEN ON YOUR OWNERSHIP MENTALITY LEADING TO FAILURE EACH YEAR .WE ARE HERE TO HELP YOU CLEAR THE DOUBT OF FAILURE AND MAKE HAPPY ONCE MORE .ALSO WE ARE ALLOWING THIS ON THE PREVIOUS EXAMINATIONS THAT HAS TAKEN PLACE ,ANY CANDIDATE THAT HAS FALLEN A VICTIM ,CAN CONTACT US VIA 0549735906
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FOR MORE INFO ON RESULTS UPGRADE ,CERTIFICATE RENEWALS ,TRANSCRIPT REQUEST ,CERTIFICATE NUMBER VERIFICATION AND VALIDATION ,CERTIFICATE REQUEST , AND JUST TO MENTION A FEW.PLEASE AM HERE TO HELP YOU ONCE AGAIN .LET US COME TOGETHER AND BUILD THE NATION GHANA AS A WHOLE. THIS IS DEVELOPED TO HELP EACH AND EVERYONE OF YOU UNDER SUCH A CONDITION .STILL
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The West African Examinations Council wishes to inform its numerous publics that it has released The PROVISIONAL RESULTS of candidates, who took the West African Senior School Certificate Examination for school candidates, 2018. The council will despatch the results to the schools and candidates are advised to contact their heads of school for their results!

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Are you competent with your previous results, are you getting prepared for the NOV/DEC exams yet?
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*PRIVATE WASSCE 2018 PHYSICS TRAIL QUESTIONS*

*1. (a)* Distinguish between heat and rate.

*(b)* state two physical properties of
substances which may be used to
measure temperature

*(c)* State two reasons why mercury is
preferred to alcohol as a thermometn'c
liquid.

*d)* i) Describe how a mercury-m-glass thermometer is calibrated.

*ii)* State two precautions necessary to ensure an accurate result.
*(e)* Explain how land and sea breezes occur

*2 a)* State the conditions for_ the equilibrium of rigid body acted upon by parallel forces

i) Describe an experiment using the pri'nciple of moments to determine the mass of a metre rule.

ii) State two precautions necessary to
ensure accurate results .

*c)* A bullet of mass 120 g is tired horizontally into a fixed wooden block with a speed of 20 ms-'. The bullet is brought to rest in the block in 0.1 s by a constant resistance. Calculate the
i) magnitude of the resistance *[24 N]*
ii) distance moyed by the bullet in the wood [1. 0 m]

*3)* Explain

i) work (ii) power

*(b)* show that efficiency E, the mechanical advantage MA and the
velocity ration VR of a machine related by the equation
E=MA/VR x100%

*(C )* An inclined plane of angle of 15 degrees raise a load of 4500 N through height of 2 m. If the plane is 75% calculate

i) velocity ratio of the plane [3.86]

ii ) it work done on the load_ [1200J].

*d)* Explain Charles’ law usmg the kinetic theory of matter.

*4a)* i) Mention two modes of heat tranSfer other than convection.
ii) Explain land and sea breezes

*b)* An iron rod of length 30 cm IS heated
through 50 K. Calculate its increase in
length.
[Linear expansivity of iron is 1.2 x 10'5 K4]
[1.8x 10'2cm]

*(c)* An electric heater immersed in some
water raises the temperature of the water
from 40°C to 100°C in 6 minutes. After another 25 minutes, it is noticed that half the water has boiled away. Neglecting heat losses to the surrounding, ealculate the specific latent heat of vaporisation of
water. [2 .1 x 105 J kg“)

*5a)* Define specific heat capacity

*b)* 1) With aid of a labelled diagram, describe an experiment to determine the specific heat capacity of copper using a copper ball.

ii) State two precautions necessary to obtain accmate results.

*C)* A piece of copper block of mass 24 g at
230°C is placed in a copper calorimeter
of mass 60 g containing 54 g of water a
31°C. Assuming heat losses are
negligible, calculate the final steady
temperature of the mixture. [Specific heat capacity of water = 4200 J kg‘l K“, specitic heat capacity of copper = 400

Jkg"K"] [38. 34°C]

*6 )* What is meet by a machine?

i) List two examples of a simple machine.

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