THE UNITED REPUBLIC OF TANZANIA

MINISTRY OF EDUCATION AND VOCATIONAL TRAINING

FORM TWO SECONDARY EDUCATION EXAMINATION, 2013 0031 PHYSICS 

TIME: 2½ HOURS 

INSTRUCTIONS

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.

SECTION A (20 MARKS)

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:

1. algebra, trigonometry and chemical change
2. insect killers, perfume and fertilizers
3. photosynthesis and food
4. rain gauge, wind vane and thermometer.

(ii) Which of the following group of instruments is used to measure the basic fundamental quantities?

1. Beam bålance, stop watch and vernier calliper
2. Chemical balance, stop watch and measuring cylinder
3. Measuring cylinder, beam balance and metre rule
4. Spring balance, stop watch and micrometer screw gauge.

(iii) The swelling of soaked beans in water is demonstration of:

1. capillarity
2. diffusion
3. osmosis
4. viscosity

Which of the following is a property of a solid state?

1. Inter-particles distance is large
2. Particles are closely packed together
3. Particles are not closely packed together
4. Particles move randomly

(v) An instrument which is used to observe objects around obstacles is

1. microscope
   
2. periscope
3. plane glass
4. telescope

(vi) The relationship between pressure and area is that on:

1.   changing area, nothing happens
2. decreasing area, pressure decreases
3. decreasing pressure, volume increases
4. increasing area, pressure decreases

(vii)  A piece of metal with a volume of 0.00012m³ has a mass of 0.12kg. The density of metal will be:

1. 100kg/m³ 
2. 1,000kg/m³
3. 10,000kg/m³ 
4. 1000,000kg/m³

(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?

1. Administer breathing exercise
2. Call a medical doctor immediately
3. Call other students to surround the victim
4. Call a physics teacher to give the victim medicine

(ix)  The sun is an example of a luminous body because it:

1. is a big star
2. is made by God
3.   produces its own light
4. reflects light from the earth

(x)  A smell of rotten body can be felt through the process of:

1. diffusion
2. evaporation
3. osmosis
4. transpiration

(xi)  The energy formed due to the rising and falling in the level of water in the oceans or seas is known as:

1. electric energy
2. tidal energy
3. water energy
4. wind energy

xii) the following are applications of magnetism in daily life except;

1. banks make use of magnetic ink on cheques
2. flour is passed near a magnet before being packed
3. magnets are used to separate sand from glass
4. VHS tapes are manufactured as a result of magnetism

(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:

1. x
2. x-z
3. z+x
4. z-x

(xiv)  An object with low centre of gravity and a wide base is:

1. neutral
2. stable
3. unequilibral
4. unstable

(xv) A ball of mass 0.6kg is kicked vertically up to a height of 6m. The potential energy acquired by the ball is:

1. A. 0.36J 
2.  3.6J
3. 36J
4. D. 3601

(xvi)  From the Archimedes principle, the upthrust acting on a body is equal to the:

1. apparent loss in weight
2. apparent weight
3. weight of a body in air
4. weight of a body in water

(xvii)  What is the total resistance of two resistors, RI = 2 and Rz 3 connected  in parallel?

1. 1.2
2. 5
3. 6
4. 12

(xviii)  The SI unit of electric charge is:

1. ampere
2. coulomb
3. ohm
4. second

(xix)  The acceleration of a body of mass 3Dkg when a constant force of 150N is applied on it will be:

1. 0.05m/s² 
2. 0.5m/s²
3. 5.0m/s2
4. 50m/s²

xx) Materials which allow electricityand heat to pass freely are termed;

1. conductors
2. insulators
3. semi-conductors
4. semi-insulators