Mdcat Online Test #2

Welcome to MDCAT Online Test #2. This test consists of 50 MCQs from Biology, Chemistry, Physics, English, and Logical Reasoning. The topics are listed on the test page. Enter your name and email to start the test. Make sure to be well-prepared before attempting the test, as it will boost your confidence for further preparation.

Test 2

Biology: Bio-energetic
○ Physics: Work and energy
○ Chemistry: Atomic Structure
○ English: Four types of sentences
○ Logical Reasoning: Letter and symbol series

1 / 50

What is the primary purpose of the light-dependent reactions of photosynthesis?

To convert CO2 into oxygen

To fix carbon into a stable form

To produce glucose

To generate ATP and NADPH

2 / 50

Which of the following best describes the Calvin Cycle?

It occurs in the thylakoid membrane.

It synthesizes glucose from CO2 and H2O.

It is dependent on light energy.

It produces oxygen as a byproduct.

3 / 50

A block of mass 5 kg slides down a frictionless incline of height 3 meters. The speed of the block at the bottom of the incline is:

4.9m/s

7.7m/s

9.8m/s

8.4m/s

4 / 50

Two blocks of masses 2 kg and 4 kg are connected by a string and placed on a frictionless surface. If a force of 12 N is applied to the 4 kg block, the tension in the string is:

2 N

6 N

8 N

4 N

5 / 50

A force of 50 N is applied to push a 10 kg box across a horizontal surface with a friction coefficient of 0.2. The work done by the friction force over a distance of 10 m is:

200 J

100 J

400 J

500 J

6 / 50

An atom in its ground state has the electronic configuration Which of the following statements is incorrect regarding this atom?

The atom is neutral.

The last electron enters a 3 𝑑 3d-orbital.

It belongs to the 3rd period.

It has 16 electrons.

7 / 50

The work done on a system increases its internal energy by 150 J, and it loses 50 J of energy as heat. The net change in the system's energy is:

100 J

250 J

200 J

150 J

8 / 50

Identify the correct sentence from the four options given.

I love it

I Love it.

i love it!

I love it!

9 / 50

A force is applied horizontally to a 2 kg block causing it to move at a constant velocity of 3 m/s on a surface with friction. The power expended by the applied force is:

6 W

12 W

18 W

9 W

10 / 50

If a force of 20 N is applied to a spring with a spring constant of 80 N/m, the displacement of the spring is:

0.5 m

1.0 m

0.1 m

0.25 m

11 / 50

Who discovered the proton and what method was used?

James Chadwick using neutron bombardment

Ernest Rutherford using gold foil experiment

J.J. Thomson using cathode ray tube

Eugen Goldstein using canal rays

12 / 50

If a force → $F(vector) = 3 i^- 4 j^$ N moves a particle from r1(vector)=(2i^+j^)m to $r2(vector)=(4i^−3j^) m the work done by the force is:$

2 J

30 J

20 J

10 J

13 / 50

Grandfather's Private Zoo' is a charming book by Ruskin Bond." - Choose the kind of sentence this is from the four options given

Imperative

Assertive/Declarative

Exclamatory

Interrogative

14 / 50

15 / 50

The kinetic energy of a particle of mass 2 kg moving at a speed of 4 m/s is:

64 J

32 J

16 J

8 J

16 / 50

In which of the following electronic configurations does an atom violate Hund's Rule?

1s² 2s² 2p^3

1s² 2s² 2p^4

1s² 2s² 2p²

1s² 2s² 2p^5

17 / 50

Glycolysis results in the net production of which of the following per glucose molecule?

2 ATP, 4 NADH

4 ATP, 2 NADH

2 ATP, 2 NADH

4 ATP, 4 NADH

18 / 50

A ball is thrown vertically upward with an initial speed of 20 m/s. Assuming no air resistance, the height at which the ball's kinetic energy equals its potential energy is:

15 m

20 m

10 m

5 m

19 / 50

A 5 kg object is moving with a velocity of 3 m/s. What is the minimum amount of work required to stop the object?

45 J

22.5 J

7.5 J

67.5 J

20 / 50

Which of the following is a final electron acceptor in anaerobic respiration?

Water

NAD+

Oxygen

Sulfate

21 / 50

A spring with a spring constant is compressed by 0.1 m. What is the elastic potential energy stored in the spring?

10 J

0.5 J

2 J

1 J

22 / 50

According to the Pauli Exclusion Principle, which statement is true for the quantum numbers of electrons in the same orbital?

They must have different angular momentum quantum numbers.

They must have opposite spins.

They must have opposite magnetic quantum numbers.

They must have different principal quantum numbers.

23 / 50

Take this pen and hand it over to the teacher." - Choose the kind of sentence this is from the four options given.

Interrogative

Assertive/Declarative

Imperative

Exclamatory

24 / 50

A 10 kg mass is lifted vertically upward by 5 meters in 2 seconds. What is the average power exerted? (Assume $m/s^2$

490 W

49 W

245 W

24.5 W

25 / 50

A block of mass $m$ is attached to a spring with spring constant and oscillates with amplitude . The maximum kinetic energy of the block is

½ k² A

½ KE A²

½ m A²

K A

26 / 50

Which of the following statements is correct about light-dependent and light-independent reactions?

Light-dependent reactions fix CO2.

Both occur in the stroma.

Light-dependent reactions produce glucose.

Light-independent reactions require ATP and NADPH.

27 / 50

Which of the following statements about the discovery of protons by Eugen Goldstein using canal rays is incorrect?

Canal rays are composed of positively charged particles.

Canal rays were observed to pass through the cathode.

The mass-to-charge ratio of canal rays is different for different gases.

Canal rays are identical regardless of the gas used in the experiment.

28 / 50

A particle moving in a circular path with a constant speed has:

Zero mechanical energy

Constant kinetic energy and increasing potential energy

Increasing kinetic energy

Zero work done by centripetal force

29 / 50

If the velocity of a car doubles, its kinetic energy changes by a factor of:

1/2

30 / 50

A system has a total mechanical energy of 100 J, with a potential energy of 40 J. The kinetic energy of the system is:

140 J

40 J

100 J

60 J

31 / 50

If an electron in a hydrogen atom transitions from the n=4 to the n=2 energy level, the photon emitted will have a wavelength in which region of the electromagnetic spectrum? (Use $h=6.626×10^34 Js$ and $c=3.0×10^8 m/s$

Visible

Ultraviolet

Infrared

X-ray

32 / 50

A block is pushed up a frictionless incline with an angle θ and initial kinetic energy K0. What will be the block's kinetic energy when it reaches a height ?

Ko ⋅ sin(θ)

Ko + mgh

Ko − mgh

Ko + mgh ⋅ cos(θ)

33 / 50

Which of the following is the correct order of energy levels and sublevels in an atom according to the Aufbau Principle?

1s<2s<2p<3s<3p<4s<3d<4p

1s<2s<2p<3s<4p<3p<3d

1s<2p<2s<3p<4s<3d

1s<2s<3s<3p<4s<4p<3d

34 / 50

During oxidative phosphorylation, ATP is generated through the process known as:

Substrate-level phosphorylation

Photophosphorylation

Fermentation

Chemiosmosis

35 / 50

Which statement is incorrect about potential energy?

It is a scalar quantity.

It is always positive.

It can be converted to kinetic energy.

It depends on the position of an object.

36 / 50

Which letter comes next in the series: A, C, E, G, __?

37 / 50

Complete the series: X, V, S, P, __, H.

38 / 50

Which of the following is true about the role of light in photosynthesis?

It fixes carbon dioxide into organic molecules.

It directly synthesizes glucose.

It provides energy to split water molecules

It is required in the Calvin cycle.

39 / 50

The efficiency of a machine that performs 400 J of work and expends 600 J of energy is:

67%

75%

33%

50%

40 / 50

Which of the following statements is true regarding the work done by a conservative force?

It always increases the mechanical energy of the system

It is path-dependent.

It is equal to the change in potential energy.

It can never be negative

41 / 50

The principal quantum number ( $n$ ) of an orbital primarily determines:

The spin of the electron

The size and energy level of the orbital

The orientation of the orbital

The shape of the orbital

42 / 50

Which of the following distinguishes anaerobic from aerobic respiration?

Both produce equal amounts of ATP.

Aerobic respiration produces lactic acid.

Anaerobic respiration requires oxygen.

Anaerobic respiration does not involve the Krebs cycle.

43 / 50

Which factor is least likely to affect the rate of photosynthesis?

Temperature

Oxygen concentration

Carbon dioxide concentration

Light intensity

44 / 50

Which quantum number indicates the orientation of an orbital in space? m¡

Magnetic quantum number (m¡)

Principal quantum number ( 𝑛 )

Spin quantum number ( 𝑚 𝑠)

Angular momentum quantum number ( 𝑙 )

45 / 50

Which molecule is a product of non-cyclic photophosphorylation in photosynthesis?

Carbon dioxide

Oxygen

NADP+

ADP

46 / 50

47 / 50

The concept of orbitals suggests that:

Electrons only exist in one-dimensional space.

Electrons orbit the nucleus in fixed paths.

Electrons can exist at any distance from the nucleus.

Electrons are localized in specific regions of space around the nucleus.

48 / 50

Photosystem II differs from Photosystem I in that:

Photosystem I generates oxygen.

Photosystem I is involved in the Calvin cycle.

Photosystem II uses water as an electron donor.

Photosystem II operates only in the dark.

49 / 50

Which statement accurately describes the properties of protons?

Protons can exist freely in a vacuum without any containment.

Protons have a mass approximately equal to that of an electron.

Protons are located in the nucleus and have a positive charge.

Protons are negatively charged.

50 / 50

Where does glycolysis occur within the cell?

Mitochondria

Cytoplasm

Nucleus

Chloroplast

Your score is

The average score is 46%

Show entries

Search:

User Name	Duration	Score
Abdul Jabbar Memon	28 minutes 29 seconds	64%
Abubakar	19 minutes 13 seconds	30%
Abubakar mahar	11 minutes 16 seconds	54%
Abubakar mahar	11 minutes 16 seconds	54%
Adan	12 minutes 57 seconds	34%
Ahmed Hussain	47 minutes 57 seconds	20%
Amina Khalid	6 minutes 10 seconds	76%
Amina Khalid	4 minutes 22 seconds	8%
Ddddd	22 minutes 32 seconds	48%
Farooq Khan	26 minutes 11 seconds	30%

Showing 1 to 10 of 58 entries

Previous1 2 3 4 5 6Next

Mdcat Online Test #2

2 thoughts on “Mdcat Online Test #2”

Leave a Comment Cancel Reply