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الصورة الرمزية أ.رحاب" 
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Oo5o.com (16) Physics Sample Items

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Physics Sample Items

نقره لعرض الصورة في صفحة مستقلة


Instruction

,Read the following questions

.Choose the right answer and darken in your answer sheet the circled letter corresponding to your answer

نقره لعرض الصورة في صفحة مستقلة

(1)

:A glass bottle of water breaks when left for long in the freezer because of
A) the expansion of the internal surface of the glass
B) the expansion of water at very low temperature
C) the increase in glass density
D) the increase in water density

(2)
:(Which of the following graphs represents the relationship between change in conductor resistance (R) and its length (ℓ

نقره لعرض الصورة في صفحة مستقلة

(3)
?An object accelerates initially from rest at 2.5 m/sec. What is the speed of this object (m/sec) after 3 seconds
A) 2.5
B) 4
C) 5
D) 7.5

(4)
:If you pour a quantity of water in four connected pipes, as shown in the figure below, the water pressure will be

نقره لعرض الصورة في صفحة مستقلة

A) minimum at point C
B) equal at points D, C and B
C) maximum at point D
D) equal at all points

(5)
.Air pressure of car tires increases when parked under the sun for some time
:The explanation of this phenomenon, according to the dynamic theory of gases, is that the air molecules

A) increase in volume
B) increase in velocity
C) increase in number
D) distance increases on the average

(6)
:A hydrogen-filled balloon ascends because its weight is
A) more than the air buoyant force acting upon it
B) less than the air buoyant force acting upon it
C) equal to the air buoyant force acting upon it
D) at the same direction of the air buoyant force

(7)
:The net force in Newton نقره لعرض الصورة في صفحة مستقلة below is
(cos 60 = 0.5 )

نقره لعرض الصورة في صفحة مستقلة

(8)
?In which of the following four positions of the same person on Earth, will his weight be the heaviest

نقره لعرض الصورة في صفحة مستقلة

(9)
:In the following diagram, the force formed between the two wires is
نقره لعرض الصورة في صفحة مستقلة

A) repulsive
B) electrical
C) attractive
D) related to the mass

(10)
.The absolute refractive indices of water and glass are 1.33 and 1.5 respectively
?What is the relative refractive index from water to glass

A) 0.17
B) 0.88
C) 1.12
D) 2.83

(11)
.An object is placed at 20 cm from a convex lens with a focal length of 15 cm
?How far in cm is the image from the lens

A) -60
B) -9
C) 9
D) 60

(12)
.The diagram below shows an incomplete lamp circuit
?What should be added in the box (x) to measure the electric current

نقره لعرض الصورة في صفحة مستقلة

(13)
نقره لعرض الصورة في صفحة مستقلة What are the two stages through which the nucleus نقره لعرض الصورة في صفحة مستقلة passes when it decays to nucleus
A β emission followed again with β emission
B β emission followed by α particles
C α emission followed again with α emission
D α emission followed by γ rays


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