New Tajmeat – SATI – Saat & Gat Center

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School Name

Gender

Male

Female

City

Math

What is the value of the expression:

cos 105° cos 45° + sin 105° sin 45°

cos 30°

cos 60°

cos 150°

cos 120°

None

Chemistry

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

Filtration

Electrolysis

Sublimation

Crystallization

None

Math

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

$-\frac{1}{3}$

-3

$\frac{1}{3}$

None

Biology

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

25%

75%

50%

100%

None

Math

Which of the following represents an ellipse?

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

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

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

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

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

Chemistry

Which of the following statements represents a quantitative expression?

Sodium is a corrosive substance for the skin

Salt dissolves in hot water

The concentration of the solution is 1 molar

Clouds contain a quantity of rain

None

Biology

In: ___________________ the testes produce sperm in animals after

The aorta

The seminiferous tubules

The urethra

The epididymis

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?

cortisol

testosterone

insulin

thyroxine

None

10.

Chemistry

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

+12

-12

-6

None

11.

Math

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

x = 5

y = 3

y = 0

x = -2

None

12.

None

13.

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?

$\frac{1}{2}$

$\frac{1}{6}$

None

14.

Biology

Which of the following ecosystems is the most diverse?

wetlands

rivers

estuaries

lakes and bogs

None

15.

Math

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

-7

-10

-11

-8

None

16.

Biology

the following shape represent:

t RNA

r RNA

DNA

m RNA

None

17.

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)

0.25M

1.5M

0.75M

0.5M

None

18.

Biology

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

valve

arteries

capillaries

veins

None

19.

Biology

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

Outer layer

Middle layer

Inner layer

Gastrula pore

None

20.

Math

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

60°

240°

120°

30°

None

21.

Physics

Which of the following is a physical change?

Decomposition

Explosion

Oxidation

Melting

None

22.

Biology

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

Gills

Book lungs

Tracheae

Lungs

None

23.

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? ($c = 3 × 10^8 m/s$)

$3.48×10^{-1}$

$3×10^8$

$1.04×10^8$

$9.57×10^{-9}$

None

24.

Physics

Which of the following statements is correct?

Light and small particles exhibit wave behavior

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

Light does not exhibit wave behavior

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

None

25.

Chemistry

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

theory

hypothesis

molecular formula

empirical formula

None

26.

Math

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

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

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

$4,/ 5$

$0,/ - 2$

None

27.

Biology

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

malaria

schistosomiasis

trichinosis

filariasis

None

28.

Physics

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

100%

50%

25%

None

29.

Chemistry

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

Reference

Concentrated

Buffer

Standard

None

30.

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

1, -2

0, 1

None

31.

Chemistry

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

-5

-10

None

32.

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 $z_1 z_2$?

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

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

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

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

None

33.

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

34.

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°

60°

45°

None

35.

Physics

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

Small and higher voltage

Small and lower voltage

Large and lower voltage

Large and higher voltage

None

36.

Biology

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

swimming with cilia

storing excess food in the form of oils

having a thin wall

having air bladders

None

37.

Math

What is the exact value of cos(420°)?

$-\frac{1}{2}$

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

$\frac{1}{2}$

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

None

38.

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)

5x10³

9.8×10³

98×10³

50×10³

None

39.

Chemistry

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

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

Bromine is a covalent molecule

Fluorine is more active than bromine.

The reactants are non-homogeneous.

The reaction lacks heat.

None

40.

Physics

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

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

Covalent

Metallic

Hydrogen

Ionic

None

41.

Biology

Mosquitoes are classified as:

Arachnids

Insects

Crustaceans

Mollusks

None

42.

Math

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

1st and 2nd

3rd and 4th

1st and 4th

1st and 3rd

None

43.

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

44.

Chemistry

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

The value of the equilibrium constant increases

The concentration of the products is not affected

The reaction shifts towards the reactants

The concentration of the reactants increases

None

45.

Biology

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

middle piece

head

tail

nucleus

None

46.

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?

504

648

448

720

None

47.

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?

Between the focal point and the center of curvature

At infinity

Behind the mirror

Behind the center of curvature

None

48.

Biology

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

Fragmentation

Regeneration

Parthenogenesis

Budding

None

49.

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?

Left

Right

Down

None

50.

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

51.

Biology

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

3'TAGGGCGG5'

3'ATCGGCCG5*

3'TAGCGCGG5'

3'TACCCGCG5'

None

52.

Math

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

$4x^2+5+c$

$2x^2+5x+c$

$4x^2+5x+c$

$x^2+5+c$

None

53.

Biology

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

Mitochondria

Plasma membrane

Cell wall

Cilia

None

54.

Physics

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

(1) Peak (2) Trough

(1) Trough (2) Peak

(1) Antinode (2) Node

(1) Node (2) Antinode

None

55.

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 attacker's head on the ball

Exerted by the ball on the goalkeeper's hand

Exerted by the ball on the attacker's head

None

56.

Biology

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

Tiger

Wolf

Elephant

Lion

None

57.

Physics

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

Aluminum

Graphite

Copper

Plastic

None

58.

Math

Which of the following always produces virtual images?

Plane mirror and concave mirror and convex lens

Concave mirror and convex mirror and concave lens

Plane mirror and convex mirror and convex lens

Plane mirror and convex mirror and concave lens

None

59.

Biology

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

brain

spinal cord

sensory neurons

motor neurons

None

60.

Chemistry

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

$NaCO_3$

$Na_2CO_2$

$Na_2(CO_3)_2$

$Na_2CO_3$

None

61.

Chemistry

The general formula for ketones is:

R-O-R

R-COOH

O
∥
R-C-R

R-OH

None

62.

Biology

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

Reptiles

Birds

mammals

Amphibians

None

63.

Physics

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

F=ILB

F=IL/B

F=LB/I

$F=ILB^2$

None

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Responses