Physics MCQ 5 Physics Quiz 1 1 / 25 Energy possessed by a body due to its motion is called energy: mechanical kinetic potential All of above 2 / 25 For the propagation of signals in our body energy is used: Electrical Chemical Heat Mechanical 3 / 25 Total energy of the system: all of above Remains same Increase Decrease 4 / 25 Unit of work is: N J Nm Both b & c 5 / 25 Rate of doing work with respect to time is known as: None of above Momentum Energy Power 6 / 25 Energy is quantity: base none of above vector scalar 7 / 25 What will be the magnitude of work if a force of 25 N pulls a stone through a distance OF 5m in its direction : 75 J 25 J 125J 50J 8 / 25 Ability of a body to do work due to its position is called energy: all of above mechanical potential kinetic 9 / 25 One Mega joule is equal to: 102J 103J 109J 106 J 10 / 25 Work done will be maximum if displacement is to force: normal Perpendicular parallel tangent 11 / 25 For movement of our body energy is used: Electrical Chemical Heat Mechanical 12 / 25 There are basic kinds of energy: 2 3 4 1 13 / 25 Which unit is equal to kgm2s-2 in the units given below: joule Meter Newton Watt 14 / 25 What will be the power of a machine doing 10 J work in 5 seconds? 25W 20W 2W 50W 15 / 25 Unit of power is: Coulomb Newton Watt Joule 16 / 25 When a ball is lifted to a height `11' from the ground, it will posseās energy: Elastic potential mechanical kinetic gravitational potential 17 / 25 Work done will be one if a force of one Newton acts on the body and it covers the distance of 1 metre in the direction of force : Watt Newton Coulomb joule 18 / 25 Unit of Energy in System International is: Coulomb Joule Newton Watt 19 / 25 What will be the kinetic energy of a body if its mass is doubled? Four times Eight times Half Doubled 20 / 25 What will be the kinetic energy of a body if its velocity is doubled? four times eight times doubled half 21 / 25 Work done will be if no force act on the body: Minimum All of above Maximum Zero 22 / 25 Rate of doing work with respect to time is known as: None of above Power Energy Momentum 23 / 25 Ability of a body to do work is known as: Power Force Momentum Energy 24 / 25 How much power is used by a 40 kg athlete by climbing 10m high ladder in 10 s: 4000W 4 W 400W 40W 25 / 25 1 hp = : 726 W 746W 756W 736W Your score is The average score is 49% LinkedIn Facebook Twitter VKontakte 0% Restart quiz 0 Physics Quiz 2 1 / 25 Product of force and distance covered in the direction of force is: Work Acceleration Resistance Specific heat 2 / 25 What will be the value of G if mass of the earth becomes four times: Doubled No change four times one fourth 3 / 25 Gravitational force on the surface of earth is equal to: All of above W g G 4 / 25 Predicted about artificial satellites about 300 years ago : faraday einstein galileo Newton 5 / 25 An artificial satellite keeps on revolving around the earth in different orbits with uniform speed due to the ? Electromagnetic force Gravitational force Frictional force Coulomb force 6 / 25 If the weight of an object on the surface of earth is W. Its weight on the surface of moon will be ? W/6 W/4 6W W/8 7 / 25 A satellite is revolving around the earth in a circular orbit. If the radius of the orbit is increased from R to 2R what will be its velocity : n2 Nv v2 v/2 8 / 25 As we go up the value of G becomes: increased doubled decreased unchanged 9 / 25 Distance of moon from Earth is? 3, 80, 000 km 3, 000, 000 km 38, 000 km 30, 000 km 10 / 25 For work conditions should be fulfilled: 2 4 1 3 11 / 25 If a rocket is fired vertically with a speed of, it will start revolving around the earth : 9.8 ms-1 8 kms-1 8 ms-1 11.2 kms-1 12 / 25 Relative velocity of Geostationary satellite with respect to earth is: ZERO 7.9 kms-1 9.8 ms-1 11.2 kms-1 13 / 25 Weight of the body of mass 10 kg on the surface of moon: 160N None of above 16N 1.62 N 14 / 25 The force which pulls the object towards the center of circle is known as force: centripetal gravitational Coulomb frictional 15 / 25 The mass of Earth is approximately: 6.0 x 10-24 kg 6.9 x 1024 kg 6.0 x 1024 kg 5500 x 1024 kg 16 / 25 Speed of GPS satellite is: 5.6 kms-1 5.0 kms-1 7.9 kms-1 3.87 kms-1 17 / 25 If the distance between two masses is half then the force of gravitation becomes: one doubled half four times 18 / 25 On mountains our weight will be as compared to weight on the surface of earth ? Equal none of above less greater 19 / 25 Motion of the football on the ground is an example of equilibrium: stable unstable neutral none of above 20 / 25 Work is quantity: None of above base vector scalar 21 / 25 If mass of both the bodies is 1kg and distance between their centers is 1m then the gravitational force will be equal to : V g G none of above 22 / 25 What is not true about g? g decrease as go higher g is different at different places g is greater at poles g is less at poles 23 / 25 The of a racing car is kept low to make its stable: height length weight width 24 / 25 Unit of gravitational field strength is: Nm N J N kg 1 25 / 25 When an object is at a height equal to radius of earth above the surface of the earth. what is the value of go ? 4g 2g g/4 g/2 Your score is The average score is 0% LinkedIn Facebook Twitter VKontakte 0% Restart quiz 0 Physics Quiz 3 1 / 25 When an object is resting on the smooth horizontal surface, the weight of the object is balanced by : Normal Reaction couple torque friction 2 / 25 There are states of equilibrium: 3 1 4 2 3 / 25 A meter rod on a wedge is an example of equilibrium : unstable Neutral stable none of above 4 / 25 The perpendicular distance between the line of action of force and centre of rotation and denoted by "r" is called : force displacement Centre of gravity moment arm 5 / 25 The equilibrium in which the body does not come back to its original condition when set free after slightly from one side is equilibrium : unstable none of above neutral Stable 6 / 25 In Neutral equilibrium, the centre of gravity than the original position : raised all of above lowered remain same 7 / 25 A book lying on the table is an example of equilibrium: unstable stable none of above neutral 8 / 25 When two equal, opposite, and parallel forces act at two points of the same body, they form a : couple Torque momentum of a couple momentum 9 / 25 According to First condition of equilibrium, the sum of all the forces acting on the body should be : above zero positive none 10 / 25 There are conditions of equilibrium: 3 4 2 1 11 / 25 The equilibrium in which the body comes back to its original condition when set free after slightly lifting from one side is equilibrium : neutral Stable unstable None of above 12 / 25 A is always acting while opening or closing water tap, a lock, stopper of a bottle or jar : weight force Couple mass 13 / 25 In Unstable equilibrium, the centre of gravity is than the original position: raised none remain same lowered 14 / 25 Sigma (1) is the Greek letter which is used to represent: addition subtraction 15 / 25 When the sum of all the force acting on a body is zero or the object is moving with uniform velocity then it will be in : rest none of above Equilibrium motion 16 / 25 In Stable equilibrium, the centre of gravity is than the original position: raised remain same lowered all of above 17 / 25 First condition of equilibrium is represented by: all of above 1Fy = 0 IF = 0 1Fā = 0 18 / 25 Sigma (1) is the Greek letter which is used to represent: subtraction multiplication addition division 19 / 25 The torque produced in a body due to a couple is equal to the product of one of the force and the : like parallel forces couple arm Couple Force 20 / 25 Second condition of equilibrium is represented by: none both a & b 0 IT = 0 21 / 25 The centre of gravity of cylinder is the: Point of intersection of the medians Central point of axis Point of intersection of the diagonals none 22 / 25 According to Second condition of equilibrium, the sum of all the torques acting on the body should be : all of above zero negative positive 23 / 25 Second condition of equilibrium is represented by: IT = 0 0 both a & b none 24 / 25 The centre of gravity of triangle is the: Point of intersection of the medians Centre of parallelogram Point of intersection of the diagonals central point of axis 25 / 25 The type of equilibrium in which after disturbance, the body again comes to rest position and centre of gravity remain unchanged : Stable unstable none neutral Your score is The average score is 0% LinkedIn Facebook Twitter VKontakte 0% Restart quiz 0 Physics Quiz 4 1 / 25 The centre of gravity of parallelogram, rectangle, square is the: Centre of parallelogram Point of intersection of the medians Point of intersection of the diagonals Central point of axis 2 / 25 Component of a vector acting along the x ā axis is called: x ā component horizontal component vertical component both a and b 3 / 25 The point at which whole weight of the body appears to act is called: centre of gravity origin referrence point couple 4 / 25 The position of the centre of gravity depends upon the of the body: size shape origin couple 5 / 25 The front sides of high-speed vehicles, aeroplanes and ships are shaped wedge like to reduce : speed friction weight pressure 6 / 25 Addition of vectors are done by: all of above right hand rule Head to tail rule left hand rule 7 / 25 If the rotation is produced in clockwise direction then the torque is taken as: perpendicular none negative positive 8 / 25 When air is released from an inflated balloon, it shoots off is an example of: weight Law of conservation of Energy First law of motion Law of conservation of Momentum 9 / 25 Value of coefficient of static friction (tits) is usually than coefficient of kinetic friction : less quarter Equal Greater 10 / 25 If several forces act on a body such that their points of action are different but lines of action is parallel to each other then these forces are known as forces : Parallel Same All of above Perpendicular 11 / 25 Sliding friction is commonly converted into Rolling friction using: Oil Polish Ball bearing Grease 12 / 25 Torque is a quantity: Scalar Both a & b Bae Vector 13 / 25 component of a vector acting along the y ā axis is called: x ā component horizontal component vertical component none 14 / 25 If the rotation produced in antilock wise direction then the torque is taken as: positive opposite perpendicular negative 15 / 25 The force which is acting perpendicularly downwards towards the earth is called: torque Both b & c weight force of gravity 16 / 25 In System International, the unit of torque is: Nm2 N Nm 1 Nm 17 / 25 The directionĀ Ā of torque is determined by rule: Both a & b left hand right hand None of above 18 / 25 The centre of gravity of a regular shaped body is always on its centre of : Medians Axis Body Symmetry 19 / 25 If the direction of parallel forces is the opposite, then these are called forces: same like paprallel all of above unlike parallel 20 / 25 During rotation, the particles of the body rotate along fixed circles. The straight line joining the centres of these circles is known as : Both a & b Parallel line None of above Axis of rotation 21 / 25 If the direction of parallel forces is the same, then these are called forces: like parallel same unlike parallel all of above 22 / 25 The rotation produced in a body depends upon factors: 4 3 2 1 23 / 25 The rotational effect of a body is measured by a quantity known as: displacement acceleration velocity torque 24 / 25 According to right hand rule, if is along the curl of the fingers of the right hand then the thumb point in the direction of torque : Rotation Force weight Parallel 25 / 25 Value of sin 300: 0.707 0.5 0.866 none of these Your score is The average score is 0% LinkedIn Facebook Twitter VKontakte 0% Restart quiz 0 Physics Quiz 5 1 / 25 Motion of the rocket is an example of: Law of conservation of Energy First law of motion Law of conservation of Momentum weight 2 / 25 SI unit of Momentum is: Kgms-1 Kgms-2 Ns Both b & c 3 / 25 Friction in the human joints is much reduced due to the presence of: Gas Muscles Fluid Bones 4 / 25 Quantity of motion in a body is known as: Acceleration Momentum Mass Velocity 5 / 25 Kgms-1 ā : N Ns J W 6 / 25 The force which resists the motion of one surface on another surface is known as: Friction Gravity Repulsion Weight 7 / 25 The tension produced when one body moves vertically and the other moves horizontallyĀ is as compared as tension when both bodies moved vertically : Doubled Half four times One fourth 8 / 25 Static friction is than kinetic friction: Quarter Less Greater Equal 9 / 25 Direction of the rate of change of momentum is in the direction of: Acceleration Velocity Momentum Force 10 / 25 A spider web remains intact due to: weight area none of these tension 11 / 25 Product of mass and velocity is known as: Speed Mass Acceleration Momentum 12 / 25 Direction of the rate of change of momentum is in the direction of: Momentum Force Acceleration Velocity 13 / 25 The Rotation of water sprinkler is an example of law of motion: fourth second One third 14 / 25 When object is at rest, the force of friction is known as friction: Static Dynamic Kinetics Limiting 15 / 25 Value of coefficient of friction (auk) depends upon: force Area of contact all of above Nature of surface 16 / 25 Momentum of a moving body depends upon its: weight Mass Both a & b velocity 17 / 25 The rolling friction is about times smaller than sliding friction: 10 100 50 1000 18 / 25 The coefficient of friction has unit: No Kilogram Dynes Newtons 19 / 25 Rolling friction is than Sliding friction: Quartered Greater Equal Less 20 / 25 The maximum value of static friction is known as friction: Limiting Static Dynamic Kinetic 21 / 25 Friction of liquids is than friction of solids: Quarter Equal Greater Less 22 / 25 When an object is in motion then the force of friction is known as friction: Static Kinetic Limiting Dynamic 23 / 25 Rate of change of momentum is equal to: Velocity Acceleration Force Impulse 24 / 25 Coefficient of friction does not depend upon the between two surfaces: Roughness Area of contact Normal Reaction Weight 25 / 25 There are cases of motion of the body hanging with the help of rope: 3 1 4 2 Your score is The average score is 0% LinkedIn Facebook Twitter VKontakte 0% Restart quiz 0 Physics Quiz 6 1 / 25 Unit of weight is: kg N ms-1 Nm 2 / 25 Action and reaction are equal in magnitude but opposite in direction is known as law of motion : First Fourth Second Third 3 / 25 Weight is a quantity: vector unitless negative Scalar 4 / 25 When a block is hanging with the help of a rope then weight of the body is balanced by: Tension Displacement ACCELERATION Inertia 5 / 25 If mass of the body is doubled while keeping the force constant, then acceleration will be : four times one fourth doubled one half 6 / 25 When a force is applied on the Ā body, is produced in the body: energy weight none of these acceleration 7 / 25 Quantity of matter in a body: Mass Velocity Force Weight 8 / 25 Weight of the body is measured by: Spring balance All of above Physical balance Free Fall Apparatus 9 / 25 The Force with which earth attracts a body towards its centre is known as: Force Inertia Mass Weight 10 / 25 When a block is hanging with the help of a rope then weight of the body is balanced by: Tension Inertia 11 / 25 Mass of the body is measured by: All of above Physical balance Free Fall Apparatus Spring balance 12 / 25 SI unit of force is: dynes Newton Kilogram Pounds 13 / 25 The weight of a body of mass 10 kg on earth will be : 1000N 1N 100N 10 N 14 / 25 If force applied on the body is doubled while keeping the mass constant, then acceleration will be : four times One half doubled one fourth 15 / 25 The characteristic of a body which determines the magnitude of acceleration produced when a certain force act upon it : Mass Inertia Force Weight 16 / 25 The acceleration produced in a moving body is always in the direction of applied : Force Momentum Velocity Speed 17 / 25 Mass is a quantity: Vector Scalar Derived Negative 18 / 25 When a block is lying on a smooth surface, its weight is balanced by: Momentum Inertia Mass Normal Reaction 19 / 25 The value of weight ofĀ Ā a body of constant mass depends on: Momentum Inertia g Force 20 / 25 The of a body always acting towards the center of the earth: Velocity Mass Force Weight 21 / 25 _____________of a bodyĀ Ā does not remain same every where: Weight Mass Inertia All of above 22 / 25 Walking on road is an example of law of motion: First Second Fourth Third 23 / 25 When a force of 8 newton is applied on a body of mass 2 kg, then the acceleration produced will be : 16 ms-2 4 ms-2 0.4 ms-2 160 ms-2 24 / 25 Ā ____________of a body remains same every where: WEIGHT ACCELERATION VELOCITY MASS 25 / 25 1 N : kgms-1 kg2ms-2 kgm2s-1 kgms-2 Your score is The average score is 0% LinkedIn Facebook Twitter VKontakte 0% Restart quiz 0 Physics Quiz 7 1 / 25 _____________ is the agency which changes or tends to change the state of rest or of uniform motion of a body : weight force inertia momentum 2 / 25 If a car is moving with uniform speed in a circle then its velocity will be: variable all of the above constant uniform 3 / 25 In equations of motion, quantities in the direction of initial velocity are taken as: Uniform Variable positive Constant 4 / 25 In equations of motion, Ā motion will always be taken along line: none of above Circular Elliptical Straight 5 / 25 In equations of motion,Ā Acceleration will always be: Negative Uniform Variable Positive 6 / 25 If a body is falling under the gravity then its initial velocity will be: uniform positive negative zero 7 / 25 Laws of motion was presented by: Newton Einstein Archimedes Galileo 8 / 25 Series of experiments on free fall of heavy bodies was performed by: Al-Kinde Galileo Newton Einstein 9 / 25 In equations of motion, quantities opposite to the direction of initial velocity are taken as : variable positive negative uniform 10 / 25 The laws of motion established the relationship between motion and : acceleration torque force momentum 11 / 25 If a body is thrown upward, then its gravitational acceleration will be: Positive Zero Negative Uniform 12 / 25 If a body is falling under the gravity then its gravitational acceleration will be: positive negative increasing zero 13 / 25 The slope of straight line in speed time graph gives the magnitude of : Acceleration Force Torque Displacement 14 / 25 The quantity which are Ā described by magnitude as well as direction is called: Vector Scalar Acceleration Speed 15 / 25 _____________ of a body is the direct measure of inertia: Momentum Mass none Energy 16 / 25 In equations of motion, Ā initial velocity will be taken as: Uniform Negative Variable Positive 17 / 25 A ball is dropped from the top of the tower. The distance covered by it in the first : 50m 10m 100m 5m 18 / 25 If a body is falling under the gravity then its gravitational acceleration will be: increasing zero positive negative 19 / 25 Isaac Newton described the laws of motion in his famous book: Principia Mathematica Qanoon-ul-Masood Kitab-ul-Astra lab Al-MA nazir 20 / 25 If a body is thrown vertically upward then its final velocity will be: positive negative uniform zero 21 / 25 When a body is falling freely under the gravity then in equations of motion 'a' is replaced by : m d s g 22 / 25 If a body is falling under the gravity then its gravitational acceleration will be: negative zero positive increasing 23 / 25 First law of motion is also known as law of : none of these Inertia Torque Acceleration 24 / 25 Law of inertia is the law of motion: Fourth First Third Second 25 / 25 The characteristic of a body due to which it tends to retain its state of rest or of uniform is known as: weight force momentum inertia Your score is The average score is 0% LinkedIn Facebook Twitter VKontakte 0% Restart quiz 0 Physics Quiz 8 1 / 25 If the velocity of a body is uniform then its acceleration will be: Positive Doubled Zero Negative 2 / 25 The motion of the string of a violin is: Rotatory Translatory Vibratory none of these 3 / 25 SI unit of speed is: ms-1 All of these kms-1 mh-1 4 / 25 The direction of motion of body and acceleration is in same direction then acceleration will be : Uniform Negative Zero Positive 5 / 25 Total length of a path between two points is known as: Acceleration Speed Distance Velocity 6 / 25 If velocity of a body changes equally in equal intervals of time then its acceleration will be : Uniform Relative Constant Variable 7 / 25 The spinning motion of a body about its axis is known as : vibratory motion Translatory motion Rotatory motion none of these 8 / 25 Speed is a quantity: none of these both Vector Scalar 9 / 25 Rest and motion are states: Variable Absolute Relative Constant 10 / 25 SI unit of acceleration is: ms-1 kmh-1 ms-2 kms-2 11 / 25 If a body changes its position with respect to some observer then it will be in state of: Rest Uniform motion Relative motion Motion 12 / 25 The area under a speed time graph represents : Acceleration Volume Speed Distance 13 / 25 Rate of change of velocity is known as: Velocity Distance Acceleration Speed 14 / 25 The rate of displacement with respect to time is known as: Distance Velocity Acceleration Speed 15 / 25 The quantity which can be described by a number, with suitable unit only is called: Speed Vector Acceleration Scalar 16 / 25 If the speed or direction of the moving body changes with time then its velocity is said to be : Uniform Variable All of these Constant 17 / 25 The quantity which are Ā described by magnitude as well as direction is called: scalar Vector speed acceleration 18 / 25 When a body moves to and for about a point and repeats its motion again and again about the same pointĀ then this motion is known as : Rotatory none of these Vibratory Translatory 19 / 25 If the speed and direction of the moving body does not change with time then its velocity is said to be : Uniform All of these Constant Variable 20 / 25 The direction of motion of body and acceleration is in opposite direction then acceleration will be : Uniform Zero Positive Negative 21 / 25 If the velocity of the body is increasing then its acceleration will be: Positive Variable Negative Uniform 22 / 25 The shortest distance between two points is known as: Distance Speed Displacement Velocity 23 / 25 Which one of the following is a vector quantity? Speed Volume Displacement Work 24 / 25 If the velocity of the body is decreasing then its acceleration will be: Positive Variable Negative Constant 25 / 25 If a body covers equal distance in equal intervals of time, however small the intervalsĀ may be then the seed of body is known as : Non uniform Variable none of these Uniform Your score is The average score is 0% LinkedIn Facebook Twitter VKontakte 0% Restart quiz 0 Physics Quiz 9 1 / 25 Least count of mechanical stopwatch is: 0.1 second 0.01 second 1 second 1minute 2 / 25 A physical balance is used to measure: weight length volume mass 3 / 25 The zeros in between the digits are considered: Significant Constant None of above Insignificant 4 / 25 In screw gauge, the distance moved forward or backward in one complete rotation of the circular scale is known as : None of above Constant Pitch Least count 5 / 25 The number of significant figures in 1.406 are: 3 1 4 2 6 / 25 The radius of wire is 0.022 cm. The number of significant figures in the measurements are : 1 4 2 3 7 / 25 In any measurement, the accurately known digits and first doubtful digit are known as: Prefixes All real numbers significant figures 8 / 25 106 Stands for: Mega Nano Pico Micro 9 / 25 The word science is derived from the Latin word : Scient Santina Scientia None of these 10 / 25 In any measurement, the accurately known digits and first doubtful digit are known as: Real numbers All Prefixes Significant figures 11 / 25 For scientific notation internationally, accepted practice is that there should be digital (s) before decimal point : No Two One Three 12 / 25 Vernier constant is also known as of vernier calipers: Vernier value least count Proportionality constant Pitch 13 / 25 Least count of digital stopwatch is: 1 minute 0.01 second 1 second 0.1 second 14 / 25 Least count of digital stopwatch is: 0.1 second 1 second 1 minute 0.01 second 15 / 25 If the zero of the circular scale is above the horizontal line then the zero error is to be: Added Subtracted Multiplied Divided 16 / 25 To correctly measure the volume of the liquid, the eye must be kept on theĀ surface of meniscus : Middle Upper All of above Lower 17 / 25 Least count of mechanical stopwatch is: 1 second 0.1 second 1 minute 0.01 second 18 / 25 If a body does not change its position with respect to some observer then it will be in a state of : Motion Uniform motion Rest Relative motion 19 / 25 Study of