FORM TWO PHYSICS NECTA 2007

Physics is the study of relationship between:

  1.  matter and energy
  2.  energy and Chemistry
  3.  matter and Biology
  4.  matter and medicine
Choose Answer :


Laboratory rules are useful in:

  1. making students enjoy science subjects
  2. making students conduct experiments freely
  3.   ensuring safety while in the laboratory
  4. ensuring good communication with other students and the teachers
Choose Answer :


(iii)            Measurement in Physics is a process of:

  1.  calculating and measuring    
  2.  beam balancing 
  3.  using spring balance
  4.  assigning numbers to observations and events.
Choose Answer :


(iv)           The SI unit of density is:

  1.  kg/m3 
  2.  kg/m2 
  3.  g/m3  
  4. g/m2
Choose Answer :


(v)            The force that causes twisting of an elastic material is called:

  1.  restoring force
  2. torsional force
  3. compressional force
  4.  stretching force
Choose Answer :


vi) When a body floats on liquid, its:

  1.  weight-is greater than the upthrust
  2.  weight is equal to the upthrust
  3. weight is less than the upthrust
  4. volume is greater than the volume of liquid displaced
Choose Answer :


(vii)         The molecules of water and those of glass will attract each other by a force known as:

  1.   adhesive force 
  2. cohesive force
  3. viscosity 
  4.  osmotic pressure
Choose Answer :


(viii)       Manometer is used for measuring:

  1. temperature  
  2.  wind speed
  3. gas pressure
  4.  density of liquid
Choose Answer :


(ix)          A force exerted by a pressure of P/Nm2 and acting over an area of Am2 is: 

  1.   P Newton         
  2.  A Newton
  3. F Newton 
  4.  PA Newton
Choose Answer :


(x)            The temperature of a body is defined as the degree of:

  1.    measurement      
  2.  heating
  3. cooling 
  4.  hotness or coldness
Choose Answer :


(xi)          Which of the following is the best reason for using alcohol in a minimum thermometer?

  1. It has low freeiing point
  2.  It has high freezing point
  3.  It has low expansivity 
  4.  It is less expensive
Choose Answer :


(xii)         Work and energy have the same SI unit called:

  1. calorie 
  2.  joule  
  3. watt 
  4.  paschal
Choose Answer :


(xiii)       The image which is formed on a plane mirror is:

  1. diminishing, real, laterally inverted
  2. the same size as the object, virtual and laterally inverted
  3.  real, magnified, same size as object
  4. magnified, vertical, laterally inverted
Choose Answer :


(xiv)       A level which has its effort between the load and fulcrum is said to be the:

  1.  second class lever  
  2. third class lever
  3. first class lever
  4.  fourth class lever
Choose Answer :


(w) When work output is equal to work input, it is called:

  1.   principle of momentum
  2. principle of work
  3. principle of energy conservation
  4. principle of moments
Choose Answer :


(xvi)        A bus carrying a heavy load on its topmost carriercan easily overturn when negotiating a corner because its:

  1. equilibrium is neutral
  2.  centre of gravity is low
  3. centre of gravity is normal 
  4.  centre of gravity is high
Choose Answer :


(xvii)       The heat energy used to break bonds between molecules during melting process and to build bonds during freezing process is called:

  1.  heat capacity 
  2.  latent heat
  3.  radiant energy 
  4.  thermal energy
Choose Answer :


(xviii)     A person standing in a bus which starts to move forward suddenly tends to fall backwards. This tendency obeys:

  1. Newtons first law of motion
  2. Newtons second law of motion
  3.  Newtons third law of motion 
  4.  The principle of moments
Choose Answer :


(xix)        The resistance of a lamp operating on a line of m volts and drawing a current of n amperes is:

  1. n/m ohms
  2. n ohms
  3. mn ohms
  4. m/n ohms
Choose Answer :


(xx)          Magnetic materials can be magnetized in three different methods namely:

  1. stroking, burning and electrical methods
  2. stroking, electrical and induction methods     
  3. burning, induction and hammering methods
  4.  hammering, burning and demagnetizing methods
Choose Answer :


THE UNITED REPUBLIC OF TANZANIA MINISTRY OF EDUCATION AND VOCATIONAL TRAINING

FORM TWO SECONDARY EDUCATION EXAMINATION, 2007

0031 PHYSICS 

Time: 2 Hours 

Instructions

1.This paper consists of sections A, B and C.

2.Answer ALL questions

3.Read carefully the instructions given in each section.

4.Write your examination number on every page.

5.Cellphones and calculators are not allowed in the examination room.

SECTION A

This section consists of twenty multiple choice questions. Answer ALL questions in this section by writing the letter of the correct answer in the box provided.

1.(i) Physics is the study of relationship between

  1. matter and energy.
  2. energy and Chemistry.
  3. matter and Biology.
  4. matter and medicine.
Choose Answer :


(ii)Laboratory rules are useful in

  1. making students enjoy science subject.
  2. making students conduct experiments freely.
  3. ensuring safety while in the laboratory.
  4. ensuring good communication with other students and the teachers.
Choose Answer :


(iii) Measurement in Physics is a process of 

  1. calculating and measuring.
  2. beam balancing.
  3. using spring balance.
  4. assigning numbers to observations and events.
Choose Answer :


(iv) The SI unit of density is 

  1. kg/m3.
  2. kg/m2.
  3. g/m3
  4. g/m2.
Choose Answer :


(v) The force that causes twisting of an elastic material is called 

  1. restoring force.
  2. torsional force.
  3. compressional force.
  4. stretching force.
Choose Answer :


(vi)When a body floats on a liquid, its

  1. weight is greater than the upthrust.
  2. weight is equal to the upthrust.
  3. weight is less than the upthrust.
  4. volume is greater than the volume of liquid displaced.
Choose Answer :


(vii) The molecules of water and those of glass will attract each other by a force known as 

  1. adhesive force.
  2. cohesive force.
  3. viscosity.
  4. osmotic pressure.
Choose Answer :


(viii) Manometer is used for measuring

  1. temperature.
  2. wind speed.
  3. gas pressure.
  4. density of liquid.
Choose Answer :


(ix) A force exerted by a pressure of P N/m2 and acting over an area of A m2 is 

  1. P Newton.
  2. A Newton.
  3. F Newton.
  4. PA Newton.
Choose Answer :


(x) The temperature of a body is defined as the degree of 

  1. measurement.
  2. heating.
  3. cooling.
  4. hotness or coldness.
Choose Answer :


(xi) Which of the following is the best reason for using alcohol in a minimum thermometer? 

  1. It has a low freezing point.
  2. It has a high freezing point.
  3. It has low expansivity.
  4. It is less expensive.
Choose Answer :


(xii)Work and energy have the same SI unit called

  1. calorie.
  2. joule.
  3. watt.
  4. paschal.
Choose Answer :


(xiii) The image which is formed on a plane mirror is 

  1. diminishing, real, laterally inverted.
  2. the same size as the object, virtual and laterally inverted.
  3. real, magnified, same size as object.
  4. magnified, vertical, laterally inverted.
Choose Answer :


(xiv) A lever which has its effort between the load and fulcrum is said to be the 

  1. second class lever.
  2. third class lever.
  3. first class lever.
  4. fourth class lever.
Choose Answer :


(xv) When work output is equal to work input, it is called A

. principle of momentum.

B.principle of work.

C.principle of energy conservation.

D.principle of moments.

Choose Answer :


(xvi)A bus carrying a heavy load on its topmost carrier can easily overturn when negotiating a corner because its

  1. equilibrium is neutral.
  2. centre of gravity is low.
  3. centre of gravity is normal.
  4. centre of gravity is high.
Choose Answer :


(xvii) The heat energy used to break bonds between molecules during melting process and to build bonds during freezing process is called 

  1. heat capacity.
  2. latent heat.
  3. radiant energy.
  4. thermal energy.
Choose Answer :


(xviii)A person standing in a bus which starts to move forward, suddenly tends to fall backwards. This tendency obeys

  1. Newton’s first law of motion.
  2. Newton’s second law of motion.
  3. Newton’s third law of motion.
  4. The principle of moments.
Choose Answer :


(xix) The resistance of a lamp operating on a line of m volts and drawing a current of n amperes is

  1. n/m ohms.
  2. n ohms.
  3. mn ohms.
  4. m/n ohms.
Choose Answer :


(xx) Magnetic materials can be magnetized in three different methods namely

  1. stroking, burning and electrical methods.
  2. stroking, electrical and induction methods.
  3. burning, induction and hammering methods.
  4. hammering, burning and demagnetizing methods.
Choose Answer :


SECTION B

2.Match the following items by writing the letter of the correct meaning from list B against the number of the item in list A in the table below at the end of the question.

List A

List B

  1. Isulator
  2. Osmosis
  3. Penumbra
  4. Moment
  5. Voltmeter
  6. Friction
  7. Spring balance
  8. Translucent object
  1. Product of force and its perpendicular distance from the point of application of the force
  2. Measures weight
  3. Opposes motion
  4. Moment change
  5. Instrument for measuring potential difference
  6. Instrument for measuring relative density
  7. Movement of molecules from region of high concentration to low concentration
  8. Osmotic pressure
  9. Movement of molecules from region of low concentration to high concentration
  10. Used to measure current 
  11. Measures mass
  12. Partial darkness
  13. Total darkness
  14. Allows light to pass through but human eye can not see through it
  15. Object that reflects all light falling on it 
  16. Any material which does not allow passage of electricity or heat

NUMBER OF LIST A

(i)

(ii)

(iii)

(iv)

(v)

(vi)

(vii)

(viii)

LETTER OF LIST B









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Answer questions 3 – 6 by filling in the correct answers in the spaces provided.

3.a) A point at which the resultant magnetic flux density is zero is called

b)The ability of a substance to recover to its original shape and size after distortion is called 

c)Lubricants are mostly applied in machine parts in order to

d)Water wets glass but mercury does not because.

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4.a) Heat energy can be transferred by the following methods:

(i)_____________________________________________

(ii)_____________________________________________

(iii)_____________________________________________

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b)Draw magnetic lines of force of a bar magnet showing its poles.

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5.a) A machine is ______________________________________________________________.

b)Briefly write the meaning of the following terms as used in Physics:

(i)Mechanical Advantage of a machine _____________________________________

____________________________________________________________________

(ii)Velocity Ratio of a Machine _____________________________________________

____________________________________________________________________

(iii)Efficiency of a machine ________________________________________________

____________________________________________________________________

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6.a) At sea level, boiling of water occurs at ____°C while evaporation occurs at _____________ temperature.

b)Evaporation occurs at the surface of the liquid while boiling occurs ___________________ the liquid.

c)Two factors which can affect the melting point of ice are:

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SECTION C

Answer ALL questions in this section. All calculations and answers must be written in the spaces provided.

7.a) Write equation for

(i) Charle’s law

(ii) Boyle’s law

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b)Draw a diagram showing a plane reflecting surface, incident ray, reflected ray, the normal, angle of incidence and angle of reflection. What is the relationship between angle of incidence and angle of reflection?

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8.Differentiate between mass and weight of an object. Give five differences.

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9.a) State Archimede’s Principle.

b)An object weighs 500N in air and 400N when immersed in alcohol. Find the upthrust on the object.

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10.a) A car with a velocity of 90 m/s is uniformly retarded and brought to rest after 10 seconds. Calculate its deceleration.

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b)State the fundamental law of static electricity

c)Explain what is wrong in the circuit diagram shown below.

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