Free Printable 🪄🧙‍♀️QUIZZARD OF KMKu DECEMBER EDITION🧙‍♂️🔮

1.

Find the equation of straight line that has the following properties:

Slope equals to 3 and passes through point (5, -3).

a)

y - 3x = 18

b)

5x - 3y = 14

c)

3x - y - 18 = 0

d)

y - 5x + 3 = 0

2.

Let P(x) = x³-2x²+bx+7.

When x = 5, P(x) = 107.

Find the remainder when the polynomial is divided by x+3.

Fill in the blank with the REMAINDER as your answer.

(a)

3.

Simple Harmonic Motion (SHM) is a motion in which the acceleration of a body is to its displacement from the equilibrium position but in the

position. Choose the correct answer.

a)

inversely proportional, random

b)

directly proportional, opposite

c)

directly proportional, random

d)

inversely proportional, opposite

4.

Ball A with a mass of 5.5 X 10³ g is moving to the east with a speed of 32 m/s collides with an object B with a mass of 3800g moving to the west with a velocity of 62 m/s. Calculate the velocity of both object after the collision.

a)

44.26 m/s

b)

6.41 m/s

c)

-6.41 m/s

d)

-44.26 m/s

5.

Calculate the wavelength in the second line of Pfund series?

Given R_H = 1.097 X 10⁷ m^-1

a)

4.56×10³ nm

b)

4.65×10³ nm

c)

6.45 ×10³ nm

d)

2.68 ×10³ nm

6.

Which molecule DOES NOT form coordinate bond?

a)

$NH_4^{\ +}$

b)

$Al_2Cl_6$

c)

$NH_3BF_3$

d)

$CHCl_3$

7.

Which type of disease is produced from autosome abnormality.

a)

Klinefelter syndrome

b)

Turner syndrome

c)

Jacob syndrome

d)

Trisomy-21

8.

What type of enzyme Lac A gene codes for?

a)

B-galactosidase

b)

RNA polymerase

c)

lactose permease

d)

galactoside transacetylase

9.

Diagram shows a circle PQRT, centre O and radius 10 cm. AQB is a tangent to the circle at Q.

Straight lines AO and BO intersect the circle at P and R respectively.

OPQR is a rhombus. ACB is an arc of a circle at also the centre O.

Find the length in cm of arc ACB and give your answer to 3 decimal points.

(a)

10.

(a)

11.

A girl pulls a luggage with a force of 44N that makes an angle of 60° with the horizontal. What is the work done by the force of 44N when the luggage is dragged through a horizontal distance of 34m?

a)

534 J

b)

748 J

c)

675 J

d)

344 J

12.

A boy throws a stone vertically upwards to hit a coconut in a tree that is 12m in height. What is the initial velocity of the stone if it just touches the coconut?

a)

17.45

b)

14.30

c)

15.34

d)

13.45

13.

State the maximum electrons that can be occupy an orbital with following quantum numbers.

n = 5 , s = $+\frac{1}{2}$

a)

16

b)

18

c)

25

d)

30

14.

An impure sample of zinc weighing 50g reacts with 129mL of HCl of (35% w/w). If the density of the HCl solution is 1.18 g cm^-3 , calculate the molarity of HCl.

(a)

15.

Non-sister chromatids of paternal and maternal chromosome overlap with each other and exchange of genetic materials occur at chiasma.

Name the sub-stage in Prophase 1 where the process above takes place.

a)

Zygotene

b)

Pachytene

c)

Diplotene

d)

Diakinesis

16.

Determine Region X.

a)

Bundle Sheath Cells

b)

Lamellae

c)

Mesophyll cells

d)

Plasmodesmata

17.

The following is a geometric series,

39, m₁, m₂, m₃, m₄, m₅, m₆, 483.

Find the value of m₄.

a)

164.27

b)

212.63

c)

280.5

d)

189.62

18.

Expand (a+b)⁴.

a)

b)

c)

d)

19.

A rubber ball of mass 20 g moving with a velocity of 8 ms^-¹ rebounds off a wall at the same velocity.

Calculate the impulsive force if the time of impact is 0.02 .

a)

16,000 N

b)

16 N

c)

-16 N

d)

-16,000 N

20.

A rigid body rotates about a fixed axis through a point in the body, with uniform angular velocity of 600 r.p.m. The velocity then decreases at a constant retardation to 300 r.p.m. in 6.0 s. Determine the angular acceleration.

a)

5.2 rad/s

b)

50 rad/s

c)

-5.2 rad/s

d)

-50 rad/s

21.

Write the formula of the ion formed for element M

Element : M

Proton number : 16

a)

$M^+$

b)

$M^{2+}$

c)

$M$

d)

$M^{2-}$

22.

State the molecular geometry for ClF₃ ( Cl =17 , F = 17 ).

a)

Trigonal planar , non polar

b)

Trigonal planar , polar

c)

T- shape , non polar

d)

T-shape , polar

23.

What are the characteristics of non-competitive inhibitors and its example?

a)

No structural similarities to the natural substrate; Malate

b)

Can be reversed by decreasing substrate concentration; Malonate

c)

Binds to allosteric site of enzyme; Arsenic

d)

Binds temporarily to allosteric site of enzyme;

Malonate

24.

If 3 NADH and 2 FADH2 passes through electron transport chain, how many ATP is produced?

a)

13

b)

5

c)

10

d)

14

25.

Solve sin θ = cos θ, 0 < θ < 2π

θ =

a)

$\frac{\pi}{4},\frac{5\pi}{4}$

b)

$\frac{\pi}{2},\frac{5\pi}{4}$

c)

$\frac{\pi}{4},\frac{7\pi}{4}$

d)

$\frac{\pi}{2},\frac{9\pi}{2}$

26.

Express $-\ \sqrt[]{5}\sin2x-2\cos2x$ in the form of R sin (2x + θ) where R > 0 and

0° < θ < 360°.

a)

$3\sin\left(2x+41.81\degree\right)$

b)

$3\sin\left(2x+318.19\degree\right)$

c)

$3\cos\left(2x-318.19\degree\right)$

d)

$3\cos\left(2x-41.81\degree\right)$

27.

A pendulum ball with mass 500 g is attached to a steel string 1.5 m long and moves in horizontal circle. Given θ = 30°.

Find the centripetal force of the pendulum ball.

Given the formula;

v = $\sqrt[]{rg\tan\theta}$ and $F=\frac{mv^2}{r}$

a)

$2.06\ N$

b)

$5.664\ N$

c)

$0.75\ N$

d)

$2.83\ N$

28.

Two object are separated by a distance 5.0 m. A = 100 kg and b = 150 kg. A third object, C = 200 kg is placed midway between them calculate the net gravitational force due to the object A and object B at C.

Given G = 6.673 x 10^-11m³ kg^-1 s^-2

a)

$1.068\times10^{-7}N$

b)

$3.2016\times10^{-13}N$

c)

$3.203\times10^{-7}N$

d)

$-1.068\times10^{-7}N$

29.

Under what conditions does a real gas can be considered as ideal gas?

a)

high pressure and low temperature

b)

low pressure and high temperature

c)

low pressure only

d)

low temperature only

30.

A sample of an oxide of arsenic is found to contain 75.74% arsenic. What is its empirical formula?

As = 74.9 gmol^-1, Oxygen = 16.0 gmol^-1

a)

$AsO_2$

b)

$As_2O_3$

c)

$As_2O_2$

d)

$As_3O_5$

31.

For the following statement which is not true about photorespiration?

a)

Both C4 and CAM plant undergo carbon fixation twice

b)

Both C4 and CAM plant have Krantz anatomy while C3 plant does not

c)

Rate of photorespiration in C3 is higher than rate of photorespiration in C4

d)

First carbon fixation in CAM plant occur at night

32.

What is a total amount carbon dioxide needed for 2 molecules of glucose to form?

a)

3

b)

6

c)

9

d)

12

🪄🧙‍♀️QUIZZARD OF KMKu DECEMBER EDITION🧙‍♂️🔮

Total questions: 32

Worksheet time: 31mins

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