New Tajmeat – SATI – Saat & Gat Center

Welcome to your New Tajmeat

School Name

Gender

Male

Female

City

Chemistry

Using: $H_2O$, which is water, the components can be separated by:

Sublimation

Electrolysis

Crystallization

Filtration

None

Math

If $z_1 = 5(\cos(\frac{pi}{3}) + i \sin(\frac{pi}{3}))$ and $z_2 = 2(\cos(\frac{pi}{6}) + i \sin(\frac{pi}{6}))$, then what is the product $z_1 z_2$?

$10(\cos(\frac{p}{2}) + i \sin(\frac{pi}{2}))$

$10(\cos(\frac{p}{2}) - i \sin(\frac{pi}{2}))$

$10(\cos^2(\frac{pi^2}{18}) + i \sin^2(\frac{pi^2}{18}))$

$10(\cos^2(\frac{pi^2}{18}) - i \sin^2(\frac{pi^2}{18}))$

None

Chemistry

In the following reaction, the reaction does not occur because:

$Br_{2(l)} +NaF_{(aq)) \rightarrow NR$

Bromine is a covalent molecule

The reactants are non-homogeneous.

The reaction lacks heat.

Fluorine is more active than bromine.

None

Biology

When a person experiences a sudden spike in blood sugar levels, which of the following hormones regulates blood sugar levels to a normal range?

testosterone

cortisol

thyroxine

insulin

None

Biology

All of the following animals are considered secondary consumers except for:

Wolf

Lion

Tiger

Elephant

None

Math

What is the value of the expression:

cos 105° cos 45° + sin 105° sin 45°

cos 30°

cos 120°

cos 150°

cos 60°

None

Biology

Mosquitoes are classified as:

Arachnids

Mollusks

Insects

Crustaceans

None

Physics

Three equal resistors, each with a value of 15Ω, are connected in parallel. What is the equivalent resistance of the combination in the same units?

None

Physics

After one half-life, the radioactive activity of a sample decreases by:

100%

25%

50%

None

10.

Biology

A couple both carry a recessive genetic disorder called cystic fibrosis. What is the probability of having a child affected with this disease?

100%

50%

75%

25%

None

11.

Physics

Which of the following statements is correct?

Light does not exhibit particle behavior, and small particles exhibit wave behavior

Light exhibits particle behavior, and small particles do not exhibit wave behavior

Light and small particles exhibit wave behavior

Light does not exhibit wave behavior

None

12.

Math

In the following diagram, $\theta D$, what is the measure of $\widehat{AC}$?

60°

30°

240°

120°

None

13.

Math

Which of the following represents an ellipse?

$25x^2+25y^2-20x+10y + 457= 0$

$25x^2-y^2-19x+22y + 457= 0$

$25x^2-19x+22y+457=0$

$25x^2+y^2-19x+22y + 457= 0$

None

14.

Biology

In the following diagram, which part of a sperm cell does the arrow point to?

nucleus

middle piece

tail

head

None

15.

Physics

What type of bond exists in the molecule hydrogen chloride (HCl)?

Note that the atomic numbers are (Cl=17, H=1)

Covalent

Metallic

Ionic

Hydrogen

None

16.

Biology

Diatoms have the ability to float to the surface of the water due to:

storing excess food in the form of oils

having air bladders

having a thin wall

swimming with cilia

None

17.

Physics

Power loss in electrical wires can be reduced by using wires with a radius:

Small and higher voltage

Large and lower voltage

Small and lower voltage

Large and higher voltage

None

18.

Chemistry

The general formula for ketones is:

R-OH

O
∥
R-C-R

R-O-R

R-COOH

None

19.

Math

In the following scenario, a car collides with a rock barrier and comes to a stop. If the average force acting on it is ($5\times 10^3N$), what is the time required (in seconds) for it to stop?

$\frac{1}{6}$

$\frac{1}{2}$

None

20.

Biology

The following diagram represents the larva of a worm that lives in freshwater and causes the disease:

trichinosis

malaria

filariasis

schistosomiasis

None

21.

Physics

An object is placed 12 cm in front of a concave mirror with a radius of curvature of 24 cm. In which of the following positions will the image be located?

Behind the center of curvature

At infinity

Behind the mirror

Between the focal point and the center of curvature

None

22.

Math

What values of a make the piecewise function
$f(x)=\left\{\begin{matrix}
a^2+2x & x\geq1\\
a+4 & x < 1
\end{matrix}\right.$

continuous at x = 1?

1, -2

0, -1

0, 1

-1, 2

None

23.

Physics

What is the derived mathematical formula that expresses the force acting on a wire carrying electric current placed in a magnetic field?

F=IL/B

F=ILB

F=LB/I

$F=ILB^2$

None

24.

Physics

When an attacker heads the ball towards the goal and the goalkeeper repels it with his hand, the force exerted by the goalkeeper on the ball is equal to the force:

Exerted by the goalkeeper on the attacker's head

Exerted by the ball on the goalkeeper's hand

Exerted by the attacker's head on the ball

Exerted by the ball on the attacker's head

None

25.

Chemistry

The solution that resists changes in pH values upon adding specified amounts of acids and bases is the:

Standard

Buffer

Reference

Concentrated

None

26.

Biology

In the following diagram, which of the following parts of the circulatory system does the arrow point to?

veins

valve

arteries

capillaries

None

27.

Physics

When a radio station broadcasts its waves with a wavelength of 2.87 m, what is the frequency of the waves in units of Hz? ($c = 3 × 10^8 m/s$)

$1.04×10^8$

$9.57×10^{-9}$

$3×10^8$

$3.48×10^{-1}$

None

28.

Math

What is the sixth term in the arithmetic sequence represented by the following pattern?

-7

-11

-8

-10

None

29.

None

30.

Chemistry

What is the oxidation number of $Cr$ in the compound $K_2Cr_2O_7$?

+12

-6

-12

None

31.

Chemistry

Number of valence electrons for neon ($_{10}Ne$):

-10

-5

None

32.

Chemistry

Which of the following equations represents a combustion reaction?

KOH + HNO_3 \rightarrow KNO_3 + H_2O

Mg + 2HCl \rightarrow MgCl_2 + H_2

CH_4 + 2O_2 \rightarrow CO_2 \uparrow + 2H_2O

H_2 + Cl_2 \rightarrow 2HCl

None

33.

Math

in a study conducted on winter temperatures in Riyadh, the temperatures were recorded for a week and were as follows: 12, 11, 13, 13, 15, 19, 15. What is the average temperature for this week?

None

34.

Biology

Which of the following ecosystems is the most diverse?

lakes and bogs

rivers

estuaries

wetlands

None

35.

Biology

All of the following are involved in a reflex arc, except for:

sensory neurons

motor neurons

spinal cord

brain

None

36.

Math

Which of the following always produces virtual images?

Concave mirror and convex mirror and concave lens

Plane mirror and concave mirror and convex lens

Plane mirror and convex mirror and concave lens

Plane mirror and convex mirror and convex lens

None

37.

Chemistry

What is the expected formula of the product when sodium carbonate ($CO_{3}^{--}$) combines with sodium?

$NaCO_3$

$Na_2(CO_3)_2$

$Na_2CO_2$

$Na_2CO_3$

None

38.

Physics

Which of the following is a physical change?

Decomposition

Oxidation

Melting

Explosion

None

39.

Biology

the following shape represent:

t RNA

m RNA

DNA

r RNA

None

40.

Physics

In the following diagram, if the plank is swinging with m1 at the top and m2 at the bottom, where should we move the pivot point to balance the seesaw?

Right

Down

Left

None

41.

Chemistry

When the temperature of an exothermic reaction at equilibrium is decreased:

The concentration of the reactants increases

The value of the equilibrium constant increases

The reaction shifts towards the reactants

The concentration of the products is not affected

None

42.

Math

In the following figure, a saw blade is made from a regular hexagon by cutting off six congruent right triangles. If a segment XY is cut from each tooth and m∠ XYZ = 45°, what is the measure of angle ∠ XZR, the sharp point of the blade?

55°

50°

45°

60°

None

43.

Chemistry

Find the molarity of the solution if we dissolve (10g) of sodium hydroxide NaOH in one liter of the solution. (Note that the molar masses are 23=H=1,O=16,Na)

1.5M

0.25M

0.5M

0.75M

None

44.

Math

What is the exact value of cos(420°)?

$\frac{\sqrt{3}}{2}$

$\frac{-\sqrt{3}}{2}$

$-\frac{1}{2}$

$\frac{1}{2}$

None

45.

Chemistry

Which of the following statements represents a quantitative expression?

Sodium is a corrosive substance for the skin

The concentration of the solution is 1 molar

Salt dissolves in hot water

Clouds contain a quantity of rain

None

46.

Biology

Female bees produced eggs that formed new individuals, both males and females, without fertilization. This method of reproduction is called:

Budding

Fragmentation

Regeneration

Parthenogenesis

None

47.

Physics

In the following figure, which represents a standing wave, which is:

(1) Peak (2) Trough

(1) Node (2) Antinode

(1) Trough (2) Peak

(1) Antinode (2) Node

None

48.

Math

The expression $\frac{\sin\theta} {\tan \theta}$ is positive in the following quadrants:

1st and 4th

1st and 2nd

1st and 3rd

3rd and 4th

None

49.

Biology

The following diagram represents the gastrula stage of embryonic development. Which of the following structures does the arrow point to?

Middle layer

Outer layer

Gastrula pore

Inner layer

None

50.

Math

Saleh bought a bag with a digital lock that opens using three digits from 0 to 9. In how many ways can he choose the lock digits such that each digit is used only once?

720

448

648

504

None

51.

Math

Which of the following is not an asymptote of the function $f(x)=\frac{6}{x^2-3x310}$

y = 3

y = 0

x = -2

x = 5

None

52.

Physics

In the following figure, a pond is filled with water with a density of 1000 kg/m³. What is the water pressure at point A in units of pascals (Pa)? (g = 10 m/s²)

9.8×10³

98×10³

50×10³

5x10³

None

53.

Biology

When you dissect a spider, you see sac-like pockets that help in obtaining oxygen. These pockets are called:

Tracheae

Book lungs

Gills

Lungs

None

54.

Biology

I saw an animal with fur and nurses its young. What class does it belong to?

Reptiles

mammals

Amphibians

Birds

None

55.

Biology

What are the complementary nitrogenous bases for the following sequence: :5'ATGGGCGC3'

3'TAGGGCGG5'

3'ATCGGCCG5*

3'TACCCGCG5'

3'TAGCGCGG5'

None

56.

Biology

The second diagram represents a comparative organizer for cells. Which of the following structures are represented by the question mark (?)?

Plasma membrane

Cilia

Mitochondria

Cell wall

None

57.

Math

What are the solutions of the equation $x^2+2x+5=0$?

$4,/ 5$

$-1+2i ,\ - 1-2i$

$0,/ - 2$

$1+2i,\ 1-2i$

None

58.

Math

The integral: $\int (4x+5)\ dx$ is equal to:

$4x^2+5x+c$

$x^2+5+c$

$4x^2+5+c$

$2x^2+5x+c$

None

59.

Math

What is the slope of the line perpendicular to the line with the equation: $y = 3x - 3$

$\frac{1}{3}$

$-\frac{1}{3}$

-3

None

60.

Chemistry

A concise way to express information about the atoms that make up a specific chemical compound is:

theory

hypothesis

empirical formula

molecular formula

None

61.

Physics

In the following diagram, the current does not flow in the circuit because part X is made of:

Plastic

Graphite

Aluminum

Copper

None

62.

Chemistry

Calculate the mass in grams for the element K if you know that the number of moles is 2 mol and its molar mass is [39g/mol].

19.5

None

63.

Biology

In: ___________________ the testes produce sperm in animals after

The aorta

The epididymis

The seminiferous tubules

The urethra

None

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