1. Answer all questions
2 . Neat arrangement of your work is fact
3 . No marks of Canceled answers from matching items and multiple choices
4 . When necessary use g=10m/s2
5 . Speed and accuracy is needed in this paper
For each of the items (i) – (x), choose the correct answer from among the given
alternatives and writes its letter beside the item number in the answer booklet.
( i) One joule work is said to be done when:
A. A force of IN displaces a body by 1 cm in direction of force
B. A force of IN displaces a body by 1 m in direction force
C. A force of IN displaces a body by 1 km in direction of force
D. A force of IN displaces a body by 1 mm in direction of force.
( ii) An instrument which can be used to observe objects out of direct vision is called:
A. Microscope
B. Periscope
C. Plane mirror
D. Telescope
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( iii) A ball of mass 0 . 6 kg is kicked vertically upwards up to a height of 6 m. The potential
energy acquired by the ball is:
A. 0.36J
B. 3.6J
C. 36J
D. 360J.
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( iv) The force of friction between layers of liquid is called:
A. Surface tension
B. Viscous force
C. Compressional force
D. Torsional force.
( v) A stone is found to have 8 kg by mass at Arusha. When sent to Tanga its mass will be:
A. 8000 g
B. 8.80 g
C. 800 kg
D. 8.50 kg
( vi) Bakari Nondo wanted to measure the volume of a stone with an irregular shape.
Which of the following pairs of instruments would you recommend that he use?
A. Measuring cylinder and metre rule
B. Measuring cylinder and overflow can
C. Metre rule and overflow can
D. Metre rule and beaker
( vii) In a light experiment, the results showed that less light was transmitted and the
image was distorted. Which type of material was used?
A
A translucent material
B
An opaque material
C
A luminous material
D
A transparent material
( viii) Its obtained by measuring the volume of the container into which its put, it’ s
called;A. Volume of gas.
B. Volume of liquid.
C. Volume of irregular object
D. Volume of regular object
( ix) Working room for scientist; -
A. Physics laboratory
B. Experimental room
B. Laboratory
D. Clinical thermometer
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( x) Which of the following is a unit of force?
A. Kgm/s
B. Kgms
C. Kg m/s2
D. Kgm/s2
2
i
ii
iii
Iv
v
vi
vii
viii
x
ix
2 . Match the items in LIST A with the responses in LIST B by writing the letter of the
corresponding response beside the item number in the answer sheet provided.
LIST A
LIST B
( i) Frictional force
(ii) Viscosity
( iii) Gravitational force
( iv) Torsional force
A. A book experiences a force directed towards
the earth
B. Force passed through a rope
C. Resistance of honey to flow
(v) Stretching force
D. Resistance to the movement of brick on
ground
E. Twisting ruler between both hands
F. Support force exerted upon an object
LIST A
i
Ii
Iii
Iv
V
LIST B
3 . The figure below shows how the bob of a simple pendulum was pulled aside to
position A and then realised to position C via position B.
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Consider point A, B, C, D and E to answer question below.
At point A and C.
( i)
The type of energy is…………………… ...............
Give a reason
............................................................................................................................. ..... .....
......................................................................................... ..............................................
At point B.
( ii)
The type of energy is… … … … … … … … … … … … .
Give a reason
…………………………………………………………………………………………………… .
………………………………… ………………………………………………………………… .
…………………………… ……………………………… ……………………………………… .
At point D and E
( iii)
The type of energy is… … … … … … … … … … … …
Give a reason.
… ……………… ………………………………………………………………………………… ..
…………………………………………………………………………………………………… ..
… ………………… ……………………………………………………………………………… ..
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… …………………………………………… …………………………………………………… ..
……………………………………………………………………………………………………..
( iv)
Mention and State the principle that is governing the process from the diagram
above.
…………………………………………………………………………………………………… ..
… ………………………………………………… …………………… ………………………… ..
……………………………………………………………………………………………………..
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4 . ( a) Every morning Ech de Schrö ndinger uses a mirror to dress clothes properly before
going to work. State the common characteristics of the image he observed while dressing.
points.
… ……………………………………………………………………………………………………
… ………………………… …………………………………………………………………………
… ……………………………………………………………………………………………………
… …………………………………… ………………………………………………………………
( b) What are the reasons that you can use them to convince your friend who
hate physics subject (6 reasons)
… ……………………………………………………………………………………………………
… ……………………………………………………………………………………………………
… ……………………………………………………………………………………………………
… ……………………………………………………………………………………………………
… ……………………………………………………………………………………………………
… ……………………………………………………………………………………………………
… ……………………… ……………………………………………………………………………
… …………………………………………………………… ………………………………………
5 . ( a) Define the following terms as applied in physics
(i) Floating
… ……………… ……………………………………………………………………………………
… …………………………………………………………………… ………………………………
(ii) Sinking
… ……………………………………………………………………………………………………
… …………………………………………………… ……………… ………………………………
(b)Briefly explain why a ship floats in water while a coin sinks
… ……………………………………………………………………………………………… ……
… …………………………………………………………………… ………………………………
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( c) A piece of glass weighs 1 . 2 N when in air and 0 . 8 N when completely immersed in
water. Calculate
(i)
The apparent weight loss
(ii)
The relative density of glass.
(iii)
The density of glass.
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6 . Consider the diagram bellow which shows the reflection of light, then use it to answer
the following questions
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(a)What does the following letter represents.
i)
A; … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … .
ii)
B; … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … .
iii)
D; … … … … … … … … … … … … … … … … … … … … … … … … … … . . . . . . . . . . . . . . . . . . . . . . . . .
iv)
E; … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … .
(b) State two laws which govern the process shown in the diagram above.
( i)
………………………………………………………………………………………………
…………………… …………………………………………………………………………
( ii)
………………………………………………………………………………………………
… ……………………………………………………………………………………………
7 . a) Define the following types of Mechanical energy and state the factor on which they
depends per each type
(i) Kinetic energy.
………………………………………………………………………………… . …………… ..
………………………………………………………… ………… . ………………………… ..
……………………………………… ……… ……… …………………………………………
(ii)Potential energy.
… ………………………………………………………………………………………………
……………………………………………………… …………………………………………
………………………………… ……………… ………………………………………………
(b) (i) Anna has a mass of 80kg. If she runs at a speed of 10m/s. calculate
energy.
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her kinetic
( ii) If a person raises a sack of maize vertically upward with a force ( F) to a certain
height
(h) . We know that Power=
where by w. d is a work done, t is a time.
Now show that the power can be expressed also as
Power =
Where by P.E is potential energy, t is time.
8 . ( a) Define the following
(i)Measurement
… ………………………………………………………………………………………………
……………………………………………………… ………… ………………………… ……
(ii)Fundamental physical quantities
… ………………………………………………………………………………………………
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……………………………………………………… ………… ………………………………
(iii)Derived quantities
… ………………………………………………………………………………………………
……………………………………………………… ………… ………………………………
(iv)Determine three (3) basic fundamental physical quantities.
…………………………………………………………………………… …… ………………
………………………………………………………………… ………………………………
…………………………………………………………………………………………………
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b) From the figure below determine the diameter of the object.
9 . ( a) by drawing a table show the difference between mass and weight four ( 4 ) points
… ……………………………………………………………………………………………………
… ……………………………………………………………………………………………………
… ……………………………………………………………………………………………………
… ……………………………………………………………………………………………………
… …………… ………………………………………………………………………………………
… ……………………………………………………………………………………………………
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… ……………………………………………………………………………………………………
… …………………………………………………………… ………………………………………
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( b) An astronaut weighs 9 0 0 N on earth. On the moon he weighs 1 5 0 N. Calculate the
moons’ gravitational strength. (Take g = 10 N/kg).
10.(a) (i) Define the term transducer.
… ……………………………………………………………………………………………………
… …………………………………………………………………… … … … … … … … … … … … …
( ii) Explain why a wonder wheel which was rotating becomes hot after a sudden stop.
… ……………………………………………………………………………………………………
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… …………………………………………………………………… … … … … … … … … … … … …
( b) A driver stopped his car by pressing the brakes to avoid a collision with a lorry that
had suddenly stopped in front of him. What was the energy change that took place in
this process? Give a reason.
… ……………………………………………………………………………………………………
… ……………………………………………………………………………………………………
…………………………………… ………………… … … … … … … … … … … … … … … … … … …
………………………………………………………………………………………………………
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