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THE UNITED REPUBLIC OF TANZANIA
MINISTRY OF EDUCATION AND VOCATIONAL TRAINING
FORM TWO SECONDARY EDUCATION EXAMINATION, 2013 0031 PHYSICS
1. This paper consists of sections A, B and C.
2. Answer ALL questions.
3. ALL answers must be written in the spaces provided. 4. Write your examination number at the top right corner of every page.
5. ALL writing must be in blue or black ink EXCEPT drawings which must be in pencil.
6. Cellphones and calculators are not allowed in the examination room.
7. You may use the following constants in your calculations:
Density of water = 1 g/cm3 or 1,000 kg/m3
Density of mercury = 13.6 g/cm3 or 13,600 kg/m3
Acceleration due to gravity = 10 m/s2
Standard Temperature and Pressure (STP): T = 273 K, P = 760 mm Hg.
1.Write the letter of the correct answer in the box provided for each of the following items:
i) The relation of Physics with Chemistry is in making:
(ii) Which of the following group of instruments is used to measure the basic fundamental quantities?
(iii) The swelling of soaked beans in water is demonstration of:
Which of the following is a property of a solid state?
(v) An instrument which is used to observe objects around obstacles is
(vi) The relationship between pressure and area is that on:
(vii) A piece of metal with a volume of 0.00012m3 has a mass of 0.12kg. The density of metal will be:
(viii) If a student gets an electric shock and falls down unconscious in a physics laboratory, which of the following would you do first to help the victim?
(ix) The sun is an example of a luminous body because it:
(x) A smell of rotten body can be felt through the process of:
(xi) The energy formed due to the rising and falling in the level of water in the oceans or seas is known as:
xii) the following are applications of magnetism in daily life except;
(xiii) A measuring cylinder contains liquid to a level x. An object of volume z is totally immersed in the liquid contained in the cylinder. The new reading of the level of the liquid will be:
(xiv) An object with low centre of gravity and a wide base is:
(xv) A ball of mass 0.6kg is kicked vertically up to a height of 6m. The potential energy acquired by the ball is:
(xvi) From the Archimedes principle, the upthrust acting on a body is equal to the:
(xvii) What is the total resistance of two resistors, RI = 2 and Rz 3 connected in parallel?
(xviii) The SI unit of electric charge is:
(xix) The acceleration of a body of mass 3Dkg when a constant force of 150N is applied on it will be:
xx) Materials which allow electricityand heat to pass freely are termed;
2.Match each item in List A with a correct 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.
4. (a) Define the term “Pressure”
(b) A rectangular object whose dimensions are 1.4 m by 0.1 m by 2.0 m has a density of 200 kg/m3. Calculate the minimum pressure when placed on a table.
5. (a) Define each of the following terms as applied in Physics:
(ii) Moment of force
(b) An object of 100 kg is lifted to a height of 5 m above the ground in 3 seconds. Calculate its:
(i) Work done
6. (a) Define the term “force” and state its SI unit
(b) A spring balance reads 12 N when a metal block is suspended from it and 10 N when the block is completely immersed in water. Calculate the:
(i) Upthrust on the block
(ii) Relative density of the block
7. (a) Define the following terms as applied to machines:
(b) A load of 500 N is raised through 5 m by a machine when its effort moves simultaneously though a distance of 25 m. If the efficiency of the machine is 80%, calculate its mechanical advantage.
8. (a) (i) State the law of conservation of linear momentum.
(ii) Define the term “elastic collision”.
(b) A body of mass 8 kg moving with a velocity of 20 m/s collides with another body of mass 4 kg moving with a velocity of 10 m/s in the same direction. The velocity of the 8 kg body is reduced to 15 m/s after the collision. If the bodies do not stick together after the collision, calculate the final velocity of the 4 kg body.
9. (a) Differentiate a ray of light from a beam of light.
(b) Mention four properties of an image formed by a plane mirror.
10. (a) State the law of magnetism.
(b) For each of the following, sketch the resulting magnetic field and mark the position of the neutral point if any, when:
(i) Two N-poles are brought close to each other but not touching.
(ii) N-pole and S-pole are brought close to each other but not touching.
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