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(a)The data below was obtained in an experiment to estimate the diameter of an oil molecule:-
- Level of oil in burette= 26cm3
- Level of oil in burettes after adding 50drops of oil=25.2cm3
- Diameter of oil patch= 7cm
(i) Determine the volume of one drop of oil
(ii) Calculate the thickness of a molecule
(iii) State any two assumptions made in this experiment
(iv) In the experiment 14.(a) lycopodium powder is used on the water surface. What is the role
of the lycopodium powder?
(b) A molecule of a liquid occupies a space about 1.5 x 10-9-9m in
thickness and breadth. Calculate the number of molecules in a litre of the liquid
Date posted:
April 3, 2019
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Lycopodium powder is lightly sprinkled on a clean water surface in a large tray. A red hot needle is plunged at the centre of the water surface. State and explain the observation
Date posted:
April 3, 2019
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Water in a dam falls through a height 24.5m. If we assume that there are no energy losses,calculate the new temperature of the water as it strikes the lower end, given that its initial temperature at the top of the dam is 18.9°C.Take specific heat capacity of water = 4200J/kg
Date posted:
April 3, 2019
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The springs A, B, C and D are identical and each extends by 2cm, when a force of 6N is suspended on the system. Determine the extension of the system
Date posted:
April 3, 2019
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The figure below represents a bimetallic strip of metals X and Y at room temperature.
The figure below shows its shape when dipped into crushed ice
Sketch a diagram in the space given below to show the shape when the strip is heated to a
temperature above the room temperature
Date posted:
April 3, 2019
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The figure below shows a bimetallic strip made of brass and iron. A marble is placed at end A of the bimetallic strip as shown below:-
State and explain what will be observed when the bimetallic strip is strongly cooled.
Date posted:
April 3, 2019
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What do you understand by the statement ‘lower fixed point’ on a temperature scale?
Date posted:
April 3, 2019
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State two liquids which are used in thermometer.
Date posted:
April 3, 2019
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Figure shows a beam balance made out of concrete and reinforced with steel.
Use a diagram to explain the behaviour of the shape of the beam when heated up.
Date posted:
April 3, 2019
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An oil drop of average diameter 0.7mm spreads out into a circular patch of diameter 75cm on the surface of water in a trough
(i) Calculate the average thickness of a molecule of oil
(ii) State two assumptions made in (i) above
Date posted:
April 3, 2019
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The diagram figure below shows a glass tube containing enclosed air by a thread of mercury 50mm
long when the tube is held in a horizontal position.
(i) The tube is slowly raised in a vertical position with the open end facing up. Determine
the new length of the trapped air (tube has same area of cross-section; atmospheric pressure = 750mmHg)
(ii) Account for the difference in the column of trapped air using kinetic theory of matter assuming that temperature is constant.
Date posted:
April 3, 2019
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Record the following transactions in a double column cash book of JABER traders and balance
it off as at 12th June 2009:-
June 1: Balances : Cash shs.5500
Bank shs.18000 (Cr)
June 3: Purchases shs.4500 was made being paid by cheque shs.4000, balance later
June 7: Sold goods for cash shs.6000
June 12: took shs.7000 to bank
June 13: Credit purchases from Ombogo shs.3000
June 14: paid Alweny shs.1000 cash
Date posted:
April 3, 2019
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You are the president of the students council in your school. You are supposed to give a speech on students
leadership during Prize Giving Day to be held in your school.
(i) What preparations would you make to ensure that your speech is a success?
(ii) What would you do during the actual speech delivery in order to be understood properly?
Date posted:
April 3, 2019
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The following transactions took place in the business of Kiprono during the first week of Jan.
2003
Jan 1st Balance brought down
Cash = Kshs12,000.00
Bank= Kshs.35,000
Jan 2nd Sold an old piece of furniture for Kshs.8,000 cash
Jan 3rd Cash sales Kshs.10,000 paid directly to the bank
Jan 4th Purchased goods worth Kshs.20,000 , paid Kshs.5,000 cash and the balance
to be paid later
Jan 5th Kiprono took cash Kshs.1,500 for personal use
Jan 6th Bought goods worth Kshs.15,000 paying partly by cheque Kshs.10,000 and
the balance in cash
Required: Prepare Kiprono’s two column cash book for the month of January and balance it
Date posted:
April 3, 2019
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Identify and explain two situations in which it would be courteous for you to maintain a respectable distance as you interact
with people.
Date posted:
April 3, 2019
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Identify four uses of the cash book
Date posted:
April 3, 2019
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Read the following poem then answer the questions that follow:-
A song in springs
O little buds all burgeoning with spring
You hold my winter in forgetfulness
Without my window like branches swing
Within my gate I hear a robin sing
O little laughing blooms that lift and bless!
So blow the breezes in a soft caress
Blowing my dreams upon swallows wing;
O little merry buds in dappled dress
You fill my heart with very wantonness
Oh little buds all burgeoning with spring.
By Thomas S. Jones Jr.
Questions
a. Explain what makes this poem an oral poem? (2 marks)
b. How has rhythm been achieved in this poem? (2 marks)
c. How would you perform the last two lines in this poem?
Date posted:
April 3, 2019
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Record the following transactions in the relevant ledger accounts for the month of June, 2009
June 1: invested shs.100,000 cash in a retail business
June 2: Obtained a co-operative loan of Shs.20,000 cash
June 3: bought furniture Shs. 70,000, paying Shs.40,000 cheque and the balance in cash
Date posted:
April 3, 2019
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Influence of altitude on vegetation distribution.
Date posted:
April 3, 2019
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Identify the situation in which the following types of ledgers are appropriate:
i) Creditors ledger
ii) Private ledgers
iii) Normal ledger
Date posted:
April 3, 2019
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In which major climatic regions of the world are the following types of vegetation found.
a. Selvas
b. The maquis or chapparal
c. The pampas
d. Taiga
Date posted:
April 3, 2019
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Indicate the balance sheet items which would be affected by the following transactions
(a) Purchase of a lawn mower by cheque
(b) Sale of goods on credit to Mwangi
(c) A debtor pays by cash
(d) The owner converted his personal car into a business asset
Date posted:
April 3, 2019
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Account for the difference between the gross National Income figures between Kenya
and Uganda
Date posted:
April 3, 2019
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Outline four factors used to determine the distribution of Omo, as a common household detergent
in Kenya
Date posted:
April 3, 2019
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Give four ways in which a firm may achieve marketing economies of scale
Date posted:
April 3, 2019
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Highlight four measures the government may take to promote delocalization in the country
Date posted:
April 3, 2019
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Outline the preparations made for the first coming of Jesus Christ as recorded in St. Luke's Gospel
Date posted:
April 3, 2019
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State four causes of abnormal demand
Date posted:
April 3, 2019
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Distinguish between block disintegration and granular disintegration
Date posted:
April 3, 2019
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A private warehouse owner insured his warehouse valued at Kshs.400, 000 for Kshs600, 000
against risk of fire. The warehouse was later destroyed completely by fire including goods worth
shs 100,000.
Required:
i) Determine the amount of compensation paid by the insurance company
ii) Give a reason for your answer in (i) above
Date posted:
April 3, 2019