

McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Uncategorized topics .
Chapters
1. |
There are three equations of uniformly accelerated motion, the odd one out is |
A. | final_velocity = initial_velocity + (acceleration × time |
B. | distance_moved = (initial_velocity × time) + (0.5 × acceleration × time² |
C. | final_velocity² = initial_velocity² + (2 × acceleration × distance_moved |
D. | final_velocity = initial_velocity + (2 × acceleration × distance_moved |
Answer» D. final_velocity = initial_velocity + (2 × acceleration × distance_moved |
2. |
Kinetic friction is always |
A. | lesser than static friction |
B. | greater than static friction |
C. | equal to static friction |
D. | equal to contact force |
Answer» A. lesser than static friction |
3. |
Gravitational potential is always |
A. | positive |
B. | negative |
C. | zero |
D. | infinity |
Answer» B. negative |
4. |
In order to keep a body moving in a circle, there exists a force on it that is directed toward the center of the circle. This force is known as |
A. | Centrifugal force |
B. | Centripetal force |
C. | Gravitational Force |
D. | magnetic force |
Answer» B. Centripetal force |
5. |
A rectangle-shaped open-to-sky tank of water has a length of 2 m and a width of 1 m. If the atmospheric pressure is assumed to be 100 kPa and thickness of the tank walls is assumed to be negligible, the force exerted by the atmosphere on the surface of water is |
A. | 20 kN |
B. | 50 kN |
C. | 100 kN |
D. | 200 kN |
Answer» D. 200 kN |
6. |
If we have a positive and a negative charge, then force between them is |
A. | positive |
B. | negative |
C. | zero |
D. | infinite |
Answer» B. negative |
7. |
Electrical force exerted by two point charges on each other is inversely proportional to |
A. | sum of their charges |
B. | product of their charges |
C. | distance between them |
D. | square of distance between them |
Answer» D. square of distance between them |
8. |
Unit for pressure used in weather maps is millibar. 1 millibar is equal to |
A. | 1000 bar |
B. | 100 kPa |
C. | 100 Pa |
D. | 1 atm |
Answer» C. 100 Pa |
9. |
Speed of stationary waves is |
A. | $$$1ms^{-1}$$$ |
B. | $$$2ms^{-1}$$$ |
C. | $$$3ms^{-1}$$$ |
D. | zero |
Answer» D. zero |
10. |
If charge is placed at infinity, it's potential is |
A. | zero |
B. | infinite |
C. | 1 |
D. | -1 |
Answer» A. zero |
11. |
Most appropriate instrument for measurement of internal and external diameter of a tube is |
A. | vernier callipers |
B. | micrometer screw gauge |
C. | meter rule |
D. | measuring tape |
Answer» A. vernier callipers |
12. |
When distance from center is doubled then electric field strength will |
A. | decrease by the factor of four |
B. | increase by factor of four |
C. | will be same |
D. | decrease by factor of two |
Answer» A. decrease by the factor of four |
13. |
Liquid A and liquid B exert same amount of pressure on each other, but the density of A is twice the density of B. The height of liquid B is 10 cm, then the height of liquid A would be |
A. | 5 cm |
B. | 10 cm |
C. | 20 cm |
D. | 40 cm |
Answer» A. 5 cm |
14. |
Incorrect statement for co-efficient of friction could be that |
A. | The coefficient of friction is denoted by the Greek letter µ. |
B. | The coefficient of friction is directly proportional to the force of friction |
C. | The coefficient of friction is constant even in the conditions of fast slipping and high contact pressure |
D. | The coefficient of friction is inversely proportional to the force pressing the surfaces together |
Answer» C. The coefficient of friction is constant even in the conditions of fast slipping and high contact pressure |
15. |
If we move a positive charge to a positive plate, then potential energy of charge is |
A. | decreased |
B. | increased |
C. | remains constant |
D. | dissipated |
Answer» B. increased |
16. |
An instrument commonly used for the measurement of atmospheric pressure is known as |
A. | Manometer |
B. | Barometer |
C. | Calorimeter |
D. | Potentiometer |
Answer» B. Barometer |
17. |
Phase difference between a node and an antinode is |
A. | 90° |
B. | 45° |
C. | 180° |
D. | 360° |
Answer» C. 180° |
18. |
Our weight, as measured by the spring weighing machine is equivalent of |
A. | The total gravitational force that Earth exerts on us |
B. | The total centripetal force required to keep us moving on Earth's axis |
C. | The total gravitational force that Earth exerts on us + The total centripetal force required to keep us moving on Earth's axis |
D. | The total gravitational force that Earth exerts on us - The total centripetal force required to keep us moving on Earth's axis |
Answer» D. The total gravitational force that Earth exerts on us - The total centripetal force required to keep us moving on Earth's axis |
19. |
Point where spring oscillates with maximum amplitude is called |
A. | node |
B. | antinode |
C. | fixed end |
D. | movable end |
Answer» B. antinode |
20. |
According to Newton's law of universal gravitation, any two particles of finite mass attract one another with a force which is |
A. | Inversely proportional to the product of their masses and directly proportional to the square of their distance apart |
B. | Inversely proportional to the product of their masses and directly proportional to their distance apart |
C. | Directly proportional to the product of their masses and inversely proportional to their distance apart |
D. | Directly proportional to the product of their masses and inversely proportional to the square of their distance apart |
Answer» D. Directly proportional to the product of their masses and inversely proportional to the square of their distance apart |
21. |
Correct example of vector quantities could be |
A. | Distance and Speed |
B. | Displacement and Velocity |
C. | Distance and Displacement |
D. | Speed and Velocity |
Answer» B. Displacement and Velocity |
22. |
In a stationary wave, nodes are at |
A. | fixed points |
B. | movable points |
C. | there are no nodes |
D. | random points |
Answer» A. fixed points |
23. |
In the formation of stationary waves, at T⁄2 the waves are |
A. | out of phase |
B. | in phase |
C. | diminished |
D. | twice the amplitude |
Answer» B. in phase |
24. |
A vector quantity is one which has |
A. | direction as well as magnitude |
B. | magnitude only |
C. | direction only |
D. | no direction, no magnitude |
Answer» A. direction as well as magnitude |
25. |
Centripetal force is dependent on three factors, the odd one out of these factors is |
A. | Mass of the rotating object |
B. | Speed of the rotating object |
C. | Volume of the rotating object |
D. | Path radius |
Answer» C. Volume of the rotating object |
26. |
Graph of potential energy against distance is |
A. | curve |
B. | parabolic |
C. | hyperbolic |
D. | straight line |
Answer» D. straight line |
27. |
On all instruments like measuring cylinder, pipette and burette, readings are always taken at the bottom of the meniscus of liquid. This is not true for liquids like |
A. | Oil |
B. | Ink |
C. | Mercury |
D. | Seawater |
Answer» C. Mercury |
28. |
In a weather map, lines joining all those regions with same atmospheric pressure are called |
A. | Bars |
B. | Millibars |
C. | Isobars |
D. | Atmospheric bars |
Answer» C. Isobars |
29. |
For a given system, the minimum frequency of a standing wave is in a |
A. | fundamental mode |
B. | lowest mode |
C. | highest mode |
D. | peak mode |
Answer» A. fundamental mode |
30. |
In an electric field, energy per unit positive charge is |
A. | voltage |
B. | current |
C. | frequency |
D. | resistance |
Answer» A. voltage |
31. |
In Kundt's dust tube, dust accumulates at |
A. | nodes |
B. | antinodes |
C. | at the end |
D. | at troughs only |
Answer» A. nodes |
32. |
A node having twice the frequency of the fundamental is called |
A. | half harmonic |
B. | harmonic |
C. | double harmonic |
D. | triple harmonic |
Answer» B. harmonic |
33. |
If frequency of certain wave is f, then it's velocity is {{}} |
A. | v = fλ |
B. | v = T⁄λ |
C. | T2 |
D. | 1⁄T2 |
Answer» A. v = fλ |
34. |
Origin of gravitational field is |
A. | charges |
B. | masses |
C. | Earth's core |
D. | matter |
Answer» B. masses |
35. |
At separation between a node and antinode, wavelength becomes |
A. | λ |
B. | λ⁄2 |
C. | λ⁄4 |
D. | 2λ |
Answer» C. λ⁄4 |
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