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‫نموذج اختبار شهر‬ ‫الفصل الدراسى الثانى‬ ‫‪2021-2020‬‬

‫الصف األول الثانوى‬ ‫اليوم الثالث‬ ‫باللغة االنجليزية‬

Model - Test First Year- Secondary Day Three No of questions

Subject

Chemistry

Physics

Biology

Total

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Subject: Chemistry

Choose the correct Answer Q 1. If the temperature of 0.5 mole of pure water rises by 2 0c , The quantity of heat in Calorie is [Atomic mass O=16 , H=1] A) 9 B) 18 C) 36 D) 12 Q

System contains two substances (A & B), The change in energy for both of them as shown in the following table The substance

The change in energy (KJ)

-60

+ 40

So that the change in energy for the surrounding is A) + 20 KJ B) - 20 KJ C) - 100 KJ D) + 100 KJ Q

The following table illustrates the specific heat of some elements in J ⁄ g0c Al

0.9

0.38

0.44

0.71

When equal masses of these elements are exposed to the same quantity of heat, The element whose temperature rises faster is ……….. A) Al B) Fe C) Cu D) C

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A system containing 5 g of substance (A) dissolved in 30 g of water, In the end of experiment the temperature decreased by 3 0c and the mass of the solution was 35 g, For this system A) Both of mass and energy are change B) Closed system C) Open system D) Both of mass and energy are not change

The temperature of 34 g of Platinum raised by 5 0c , If you know that the specific heat of Platinum is 0.133 J ⁄ g 0c , The amount of gained heat is ……… A) 22.6 J B) 11.3 J C) 27.5 J D) 19.8 J

Which of the following shapes expresses the right graphical relationship between the average of speed of molecules and the temperature Shape (A)

Shape (B)

Average speed of molecules

Temperature

Shape (C)

Temperature

Shape (D)

Average speed of molecules

Temperature

Average speed of molecules

Temperature

A) Shape (A) B) Shape (B) C) Shape (C) D) Shape (D)

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1 g of Hydrogen gas reacted as in the following reaction H2(g) + Cl2(g) → 2HCl(g) + 185 KJ The diagram that represents this reaction is Shape (A) Heat content (H)

Shape (B) Heat content (H)

∆H0 = + 92.5 KJ ⁄ mol.

∆H0 = + 185 KJ ⁄ mol.

Progress of reaction

Shape (C) Heat content (H)

Shape (D) Heat content (H)

∆H0 = - 92.5 KJ ⁄ mol.

∆H0 = - 185 KJ ⁄ mol.

Progress of reaction

A) Shape (A) B) Shape (B) C) Shape (C) D) Shape (D)

The energy chart in front of you expresses the following reaction Heat content (H)

Progress of reaction

A) A + B → C + 50 KJ B) A + B + 50 KJ → C C) A + B - 50 KJ → D) A + B → C

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∆H = - 50 KJ

17‫ من‬5

‫الصفحة‬

From the reaction ½ H2(g) + ½ I2(g) + 26 KJ → HI(g) The value of ∆H of the following reaction is 2HI(g) → H2(g) + I2(g) A) - 52 KJ B)

+ 52 KJ

C) - 26 KJ D) +26 KJ

10. In the following reaction

H2(g) + Br2(g) → 2HBr(g) If the values of bond energies are as shown in the following table The Bond

H-H

Br - Br

H – Br

The average of Bond energy KJ ⁄ mol.

436

190

362

The change in Heat content for the reaction is A) + 198 KJ ⁄ mol. B) - 198 KJ ⁄ mol. C) + 98 KJ ⁄ mol. D) - 98 KJ ⁄ mol.

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Subject: Physics Choose the correct Answer Q

11.

If the force acting on a body is tripled, the acceleration by which the body moves in the second case = ………. A) a = 3 a 2 1 B) a =1/3 a 2 1 C) a = 2 a 2 1 D) a = 1/2 a 2 1

12.

The graph illustrates the relation between the mass of the body and the reciprocal 𝟏 𝐦𝐨𝐦𝐞𝐧𝐭𝐮𝐦 𝐨𝐟 𝐛𝐨𝐝𝐲 (𝐁) of its velocity ( ). so, the ratio = …………… 𝐯

𝐦𝐨𝐦𝐞𝐧𝐭𝐮𝐦 𝐨𝐟 𝐛𝐨𝐝𝐲 (𝐀)

A) 2 B) 3 C) √𝟑 D) 1

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13. A body of mass 100g is tied to a thread of 70 cm long, makes 4

complete rotations around point (M) in 10 seconds. So, its centripetal acceleration = ……….

A) 39.84 m/s2 B) 398.4 m/s2 C) 2.4 m/s2 D) 4.4 m/s2

14. Using the data on the figure , so, the acceleration at which the car

moves …………….

A) 0.6 m/s2 to the right B) 0.4 m/s2 to the left C) 0.4 m/s2 to the right D) 0.6 m/s2 to the left

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15. The graphs illustrate how the acceleration changes as the reciprocal of

the mass changes. Which one illustrates the greatest moving force ………

A) (B) B) (C) C) (A) D) (D)

16. The graphs illustrate the relation between the momentum of a body

and time. Which graph illustrates a force which is opposite to the motion direction? ………

A) (C) B) (A) C) (D) D) (B)

17. A car of mass 1000 Kg moves in a curved road of diameter (50 m) at

(10 m/s) speed. So, the friction force needed to keep the car from sliding out of the curve = …………. A) 400 N B) 2000 N C) 4000 N D) 200 N ‫اليوم الثالث‬-‫الصف األول الثانوى‬

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18. In the hammer throw sport, knowing that the player makes (10)

complete rotations in (8) seconds. Using the data on the figure. So, the tension affecting the player’s arm = ………

A) 302.5 N B) 203.5 N C) 305.2 N D) 503.2 N

19. If the speed by which the body rotates in a circular path is doubled. So,

the centripetal acceleration of the body ………… A) Remains constant B) Decreases to half C) Increases to double D) Increases four times

20. As a body rotates in a circular path, which of the choices is correct

……… The linear acceleration

The centripetal acceleration

A) Has a value

Has a value

B) zero

zero

C) Has a value

zero

D) zero

Has a value

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Subject: Biology

Choose the correct Answer: Q

21. What is the genotype for a flowering pea plant with white

flowers that carries the largest number of dominant genes? A) B) C) D)

aaBb AABb AABB AAbb

22. Which of the following chromosomal structure represents a

gamete that can be produced by a normal male or female in human? A) B) C) D)

(22 + X) (22 + Y) (22 + XX) (22 + XY)

23.

What is the percentage of normal females resulting from this fertilization? A) B) C) D)

25 % 50 % 75 % 100 %

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24. Which of the following diagrams represents the result of mating of a father who is a universal donor for blood groups and a mother her blood doesn’t have any antibodies for blood groups? A)

% of resulted individueals

100% 75% 50% 25% 0%

Blood group

% of resulted individueals

B O

100% 75% 50% 25% 0%

AB A

Blood group

% of resulted individueals

100%

75% 50%

25% 0% A

100% 75% 50% 25% 0%

% of resulted individueals

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Blood group

B B

Blood group

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25. What is the number of different gametes that are produced from

an individual whose structure Aabb? A) 1 B) 2 C) 3 D) 4

26. The mutation (a)in human is a recessive, sex linked and lethal

for the pure embryos before birth. What is the percentage of dead babies that resulted from the marriage of a healthy man and carrier woman for this gene? A) 100% females B) 100% males C) 50% of females D) 50% of males

27. In Antirrhinum plant, which of the following crossing produces

more than two different phenotypes of flowers colour? A) Pink X White B) Pink X Red C) White X White D) Pink X Pink

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28. The albinism in human is a recessive trait that represented by

(aa). What is the result of mating a man and a woman both of them are a normal hybrid for this trait? A) 25% Albino B) 100% normal C) 50% Albino D) 50% normal

29. Which of the following cases it isn’t necessary to inject a (Rh-)

mother with the antiserum for (Rh) factor? A) The 1st baby is (Rh + ) B) The father is pure (Rh + ) C) The father is (Rh - ) D) The 2nd baby is (Rh +)

30. Which of the following chromosomes has the largest size in the

human karyotype? A) Chromosome (22) B) Chromosome (Y) C) Chromosome (9) D) Chromosome (X)

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Model Answer Subject: Chemistry Question No

Symbol

Answer

+20 KJ

Closed system

22.6 J

Shape C

A + B + 50 KJ → C

-52 KJ

10.

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-98 KJ

17‫ من‬15

‫الصفحة‬

Subject: Physics Answers Question No

Symbol

Answer

11.

a2 = 3 a 1

12.

13.

4.4 m/s2

14.

0.4 m/s2 to the right

15.

(C)

16.

(C)

17.

4000N

18.

302.5 N

19.

Increases four times

zero

20.

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Has a value

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Subject: Biology Answers Question No 21. 22. 23. 24.

Symbol D C B A

Answer AAbb (22 + X)

50 %

% of resulted individueals

100% 75% 50% 25% 0%

25. 26. 27. 28. 29. 30.

B D D A C D

Blood group

2 50 % of males Pink x Pink

25% Albino The father is (Rh - ) Chromosome (X)

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‫كتلة المادة‬ ‫(‪)g‬‬

‫عدد الموالت كتلة المول‬ ‫( ‪)g / mol ( ) mol‬‬

‫) للوسط المحيط ( ‪E‬‬

‫‪T‬‬

‫‪ ( = -‬للنظام ) ‪E‬‬

‫‪qp = m . c .‬‬

‫دليل الطالب بالصف االول الثانوي في مادة الفيزياء‬ ‫الختبار شهر مارس ‪2021‬م‬ ‫القوانين والعالقات الرياضية التي يحتاج اليها الطالب‪:‬‬ ‫‪ .1‬كمية التحرك )‪(P‬‬ ‫حيث )‪ (m‬هى كتلة الجسم و )‪ (v‬هى سرعته‬

‫‪𝐏 = 𝐦 . 𝐯 Kg.m/s‬‬

‫‪ .2‬القوة )‪(F‬‬ ‫𝐏∆‬ ‫𝐭∆‬

‫حيث )‪ (m‬هى كتلة الجسم و )‪ (a‬هى العجلة التى يتحرك بها الجسم‬

‫𝐯∆‬ ‫𝐭∆‬ ‫𝐚‪𝐅 = 𝐦 .‬‬ ‫‪𝐅=𝐦.‬‬

‫‪N‬‬ ‫‪ .3‬الوزن )‪(Fg‬‬ ‫حيث )‪ (m‬هى كتلة الجسم و )‪ (g‬هى عجلة الجاذبية األرضية‬

‫=𝐅‬

‫‪N‬‬

‫𝐠 ‪𝐅𝐠 = 𝐦 .‬‬

‫‪ .4‬العجلة المركزية)‪(ac‬‬ ‫حيث )‪ (v‬هى السرعة المماسية للجسم و )‪ (r‬نصف قطر المسار الدائرى‬

‫𝟐𝐯‬ ‫= 𝐜𝐚‬ ‫𝐫‬

‫‪ .5‬السرعة المماسية لجسم يتحرك فى مسار دائرى )‪(v‬‬ ‫حيث )‪ (r‬نصف قطر المسار الدائرى و )‪ (T‬الزمن الدورى‬

‫𝐫𝛑𝟐‬ ‫𝐓‬

‫=𝐯‬

‫‪ .6‬القوة الجاذبة المركزية التى تؤثر على جسم يتحرك فى مسار دائرى )‪(Fc‬‬ ‫حيث )‪ (m‬هى كتلة الجسم و )‪ (v‬هى السرعة المماسية للجسم و )‪(r‬‬ ‫نصف قطر المسار الدائرى‬

‫𝐜𝐚 ‪𝐅𝐜 = 𝐦 .‬‬ ‫𝟐𝐯‬ ‫‪𝐅𝐜 = 𝐦 .‬‬ ‫𝐫‬

Laws and mathematical relations

1. Momentum of a body (P) 𝐏 = 𝐦 . 𝐯 Kg.m/s

Where (m) its mass and (v) its velocity

2. Force (F) 𝐅=

∆𝐏 ∆𝐭

∆𝐯 𝐅=𝐦. ∆𝐭 𝐅 = 𝐦 .𝐚

Where (m) is the mass of the body and (a) is the acceleration by which the body moves. N

3. Weight of the body (Fg) 𝐅𝐠 = 𝐦 . 𝐠

Where (m) is the mass of the body and (g) is the acceleration due to gravity.

4. Centripetal acceleration (ac) 𝐯𝟐 𝐚𝐜 = 𝐫

Where (v) is the tangential velocity and (r) is the radius of the circular path.

5. The tangential velocity of a body moves in a circular path (v) 𝐯=

𝟐𝛑𝐫 𝐓

Where (r) is the radius of the circular path and (T) is the periodic time.

6. The centripetal force acting on a body moves in a circular path (Fc) 𝐅𝐜 = 𝐦 . 𝐚𝐜 𝐯𝟐 𝐅𝐜 = 𝐦 . 𝐫

Where (m) is the mass of the body, (v) is the tangential velocity and (r) is the radius of the circular path.