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THE UNITED REPUBLIC OF TANZANIA NATIONAL EXAMINATION COUNCIL
PHYSICS FTNA 2011
Whenever necessary use thefollowing constants:
Density of water = lg/cm3 or 1000kg/m3
Acceleration due to gravity: g = 10m/s2
Density of mercury = 13.6g/cm3 or 136000kg/m3
1. Write the letter of the correct answer in the box provided.
(i) The following are fundamental quantities in mechanics except:
(ii) Which of the following groups represent forces?
(iii)Sustainable energy sources are:
(iv)The best test for a magnetized material is:
(v)The type of light beam produced by the sun is:
(vi) What makes the last drop of tap water remain hanging for sometime at the outlet of the tap soon after closing the tap?
(vii)A vernier caliper reads 6.23cm. The reading in millimeters on the vernier scale is:
(viii)A clinical thermometer differs from other thermometers because it:
(ix)A potential difference of 12V is applied across a resister of 1200, The current in circuit is:
(x)A plane mirror always forms:
(xi)The volume of a piece of metal with a mass of 150g and density of 0.03g/cm3 is:
(xii)A liquid at 100 0 C is as hot as:
(xiii)Work and energy have the same SI unit called:
(xiv)When charging bodies by friction, the particles which are transferred are:
(xv) First Aid is an immediate assistance or care given to a sick person or an accident victim before getting:
(xvi)The area under the velocity-time graph represents:
(xvii)A machine has a velocity ratio of 15. If an effort of ION is applied to lift a load of 50N, its efficiency is approximately equal to:
(xviii)When reading the volume of water in a burette, one needs to look at the:
(xix)The property of a material to recover its original shape and size on removal of a stretching force is called:
(xx)When buying sugar from a shop you pay for its:
2. Match each item in List A with a response in List B by writing its letter below the number of the corresponding item in the table provided.
3. Complete each of the following statements by writing the correct answer in the spaces provided:
(a)In magnetism, points where the net magnetic field is zero are called
(b)The number of images (n) formed between mirrors placed at 90, is given by the formula n = .....
(c)(i) Sea-wave energy is a result of .
(ii) Geothermal energy is
4. (a) Define the term "electrostatics".
(b) Draw a diagram of the gold-leaf electroscope and label the following: brass cap, insulator, earthed metal case, gold leaf, brass plate and brass rod.
5 (a) - Define the term "simple machine".
(b) Write down the velocity ratio of the following simple machines:
(i) Inclined plane
(ii) A pulley system
(c) Why musta liquid and nota gas be used as fluid in a hydraulic machine? Give two reasons.
6. (a) State Ohms law.
(b) A cell of8V is connected in series with a resistor of 30. What is the value of the current through the resistor?
7.(a) Define the term "centre of gravity".
(b) A uniform half-metre rule is freely pivoted at 15cm mark and it balances horizontally when a body of mass of 40g is hung from a 2cm mark.
(i)Draw a clearly labelled diagram to illustrate the forces on a halfmetre rule.
(ii)Calculate the mass of the rule.
8.An object starts from rest and moves with a velocity of 20m/s for 5 seconds. It maintains this speed for 20 seconds before applying brakes, and comes to rest after 10 seconds.
(a)Sketch the velocity-time graph for this motion.
(b)From the graph drawn in part (a) above, find:
Calculate the total distance covered for the whole motion.
9.(a) What is energy?
(b) State the principle of conservation of energy.
(c) A motor exerts a horizontal force of 200N in pulling a box 10m across a level floor. How much work did the motor do?
10. (a) State Archimedes principle.
(b) A body weighs ION in air and 8N when completely immersed in a liquid of density 0.8g/cm3. Find:
(i)The volume of the liquid displaced
(ii)The density of the body
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