AFNS Most Repeated MCQs Physics
| Question | Answer |
| Beats are produced due to? | Interference |
| Viscosity in solids is? | No Concept |
| Unit of charge is? | Coulomb |
| Electron volt is a unit of? | Energy |
| Torque is the product of? | Force and radius vector |
| Unit of dipole moment? | Ampere Second Meter |
| A train of mass 8000Kg is moving with constant speed, then the net force acting on it is? | Zero |
| Acceleration is? | Vector Quantity |
| A device that can store charges? | Capacitor |
| First law of motion of Newton is also called? | Law of Inertia |
| The rate of doing work is called? | Power |
| Unit of energy is? | Joule |
| Earth moves around the sun according to which law? | Kepler’s 2nd Law |
| Unit of charge is? | Coulomb |
| In which law is pressure kept constant? | Charles’ Law |
| Ohm is the unit of? | Resistance |
| The path followed by a projectile is? | Trajectory |
| Electron volt is the unit of? | Energy |
| Magnetic induction is also called? | Magnetic Flux Density |
| Unit of viscosity is? | Meter²/sec |
| The unit of surface tension is? | Newton/meter |
| Which is not a vector quantity? | Mass |
| The direction of the induced current always opposes the change which causes it? | Lenz’s Law |
| Which shows the energy of orbits? | Bohr Atomic Model |
| Earth revolves around the sun according to which law? | Law of Motion |
| When a body moves in a circular path with constant speed, then force acting on it is? | Zero/No Force |
| Atom bomb is based on the principle of? | Nuclear Fission Reaction |
| Question | Answer |
| The unit of efficiency is? | No Unit |
| Study of neutrons, atoms, electrons is in which branch of physics? | Atomic Physics |
| Rate of change of displacement is? | Velocity |
| In order to do work, energy? | Transferred/Convert |
| The SI unit of electric current is? | Ampere |
| ERG (electroretinography) test is for? | Eyes |
| Which bulb has higher resistance: 100W or 2W? | 2 Watt |
| Long sightedness is corrected by using? | Convex lens |
| The SI unit of Electric dipole moment is? | Ampere Second Meter |
| Which bulb has lower resistance: 100W or 60W? | 100 Watt |
| The unit of heat is? | Joule |
| Tesla is the unit of? | Magnetic Field/Magnetic Induction |
| The energy which is due to motion? | Kinetic Energy |
| Potential energy and kinetic energy are examples of? | Mechanical Energy |
| A 250V bulb passes a current of 0.3A. Calculate the power. | 75 Watt |
| Total photosynthesis carried out by terrestrial plants is? | 20% |
| The unit of force constant is? | Newton/meter |
| The work is equal to the product of? | Force and Displacement |
| Does a pen write on paper due to force? | Yes (Force of Friction) |
| In physics, we study the relation between? | Matter and Energy |
| Unit of Force Constant is? | N/m |
| Unit of dipole moment? | Ampere Second Meter |
| Unit of viscosity is? | Ns/m² |
| A body rotating with constant angular acceleration, its centripetal force will be? | Constant |
| Solid NaCl is? | Insulator |
| An electric motor converts which energy into mechanical energy? | Electrical |
| When a craft moves in space, which law of motion applies? | 3rd Law of Motion |
| Who proposed the Pressure Flow Theory? | Ernst Munch |
| Question | Answer |
| The unit of force constant is | N/m |
| The energy that it possesses due to its motion is called | Kinetic Energy |
| Rate of change of displacement is called | Velocity |
| The unit of Efficiency is | No unit |
| One nanosecond equals how many seconds? | 10⁻⁹ |
| Acceleration is a | Vector quantity |
| Gravity at the center of the Earth is | Zero |
| Device that converts electrical power into coherent light? | Laser Diodes |
| Each orbital can hold a maximum of how many electrons? | Two |
| The maximum range for projectile motion is | 45° |
| How many joules are in 1 calorie? | 4.18 Joules |
| A photon loses its entire energy during | Photoelectric effect |
| In case of positive work, the angle between force and displacement is | 0° (zero degree) |
| In case of negative work, the angle between force and displacement is | 180° |
| Unit of Magnetic Flux is | Weber (Wb) |
| The SI unit of Magnetic Flux density is | Tesla |
| How many faces does a prism have? | Faces depend on prism shape |
| The SI unit of capacitance is | Farad (F) |
| One horsepower is equal to | 746 watts |
| Which force attracts each body toward itself? | Gravitational Force |
| A body travels at a uniform speed of 20m/s. Find the distance covered in 10 sec. | 200 meters |
| Electron volt is the unit of | Energy |
| If two forces of 3N and 4N act on a body at a 90° angle, the magnitude of the resultant force will be | 5N |
| Scalar product is also called | Dot Product |
| Which bulb gives more brightness: 60W or 100W? | 100W |
| Distance covered by a body in unit time is called | Speed |
| One nanosecond is equal to | 10⁻⁹ seconds |
| Question | Answer |
| Centripetal force acts on? | An object moving in a circle |
| Light year is the unit of? | Distance |
| What is the weight of a body at the center of the Earth? | Zero |
| The unit of resistance is? | Ohm (Ω) |
| The force that causes an object to rotate about an axis is called? | Torque |
| The field of physics that studies atoms as an isolated system of electrons and an atomic nucleus is called? | Atomic physics |
| The Sun is a? | Star |
| Sound waves are waves. | Longitudinal waves |
| Which bulb has higher resistance, 100 watts or 2 watts? | 2 watts |
| ERG (Electroretinography) test is for? | Eyes |
| The study of atoms, neutrons, and electrons falls under which branch of physics? | Atomic physics |
| Distance covered by a body in unit time is called? | Speed |
| Scalar product is also called? | Dot product |
| Electron Volt is the unit of? | Energy |
| A body travels at a uniform speed of 20 m/s. Find the distance covered in 10 seconds. | 200 m (Formula: S = vt) |
| Which bulb gives more brightness, 100 watts or 60 watts? | 100 watts |
| The SI unit of Electric Dipole Moment is? | Coulomb-meter |
| What type of lens is used to correct long-sightedness? | Convex lens |
| What happens when two parallel wires carry current in the same direction? | They attract each other |
| What happens when two parallel wires carry current in opposite directions? | They repel each other |
| A Venturimeter is a device used to measure? | The rate of fluid flow through a pipe |
| A device used to convert DC into AC is? | Power Inverter |
| A device used to convert AC into DC is? | Rectifier |
| The dimension of Angular Momentum is? | [M¹][L²][T⁻¹] |
| The acceleration of a freely falling body is? | 9.8 m/s² |
| The dimension of Impulse is similar to? | Momentum (Formula: Ns) |
| When a ray of light enters a glass slab from air, what happens? | Its wavelength decreases |
| The SI unit of Frequency is? | Hertz (Hz) |
| The dimension of mass is? | [M] |
| What is the weight of a body placed at the center of the Earth? | Zero |
| The SI unit of viscosity is? | Pascal-second (kg·m⁻¹·s⁻¹) |
| Hooke’s Law is applicable within? | The elastic limit |
| The SI unit of self-inductance is? | Henry (H) |
| The SI unit of capacitance is? | Farad (F) |
| How many basic SI units are there? | Seven |
| The unit of stress is? | Newton per square meter (N/m²) |
| The period of a simple pendulum will be doubled if? | The length is increased four times |
| In the case of a concave mirror, the center of curvature lies? | In front of the mirror |
| The frequency of a Second Pendulum is? | 0.5 Hz |
| The unit of heat is? | Joule |
| Tesla is the unit of? | Magnetic field |
| Question | Answer |
| The path followed by a projectile is known as? | Trajectory |
| How many sides does a prism have? | 6 |
| Which of the following is not a vector? | Displacement |
| What is the unit of viscosity? | No correct option provided |
| What is the unit of charge? | Coulomb |
| Ohm is the unit of? | Resistance |
| A device that can store charge? | Capacitor |
| The unit of surface tension? | Newton per meter |
| Electron Volt is the unit of? | Energy |
| A thermostat is an instrument that maintains? | Temperature |
| The unit of heat is? | Joule |
| Tesla is the unit of? | Magnetic field |
| The energy due to motion is called? | Kinetic energy |
| The Earth revolves around the Sun by which law? | Law of motion |
| The rate of change of displacement is called? | Velocity |
| A decrease in speed or velocity is called? | Deceleration |
| The unit of efficiency is? | No unit |
| Distance covered by a body in unit time is called? | Speed |
| The unit of force constant is? | N/m |
| The scalar product is also called? | Dot product |
| Electron Volt is the unit of? | Energy |
| One nanosecond is equal to how many seconds? | 10⁻⁹ |
| ERG test is for? | Eyes |
| Which force attracts each body towards it? | Gravitational force |
| Acceleration is a? | Vector quantity |
| What is the unit of Magnetic Flux? | Tesla |
| In what condition is work positive? | When the direction of force and displacement is the same |
| When a body moves in a circle, what is the effect on kinetic energy? | Kinetic energy = 0 |
| Gravity at the center of the Earth is? | Zero |
| 1 Horsepower is equal to? | 746 watts |
| If the time of a pendulum is doubled, what happens to its length? | It increases 4 times |
| The range of a projectile is maximum at which angle? | 45° |
| How many faces does a prism have? | It depends on the shape of the prism |
| The unit of capacitance is? | Farad (named after Michael Faraday) |
| The unit of frequency is? | Hertz |
| Question | Answer |
| What pressure is required to fill the discharge tube? | Less |
| What region does the Balmer series lie in? | Visible |
| What is the natural arrangement of colors in the spectrum of white light? | VIBGYOR |
| What is the range of wavelengths of colors in the visible spectrum? | 410 |
| What is the incorrect statement? | 656 |
| Who expressed the results of spectra obtained by Balmer in 1896? | Rydberg |
| What is the process of formation of spectrum called? | Spectroscopy |
| What is the value of Rydberg’s constant? | 1.0974 |
| What does spectrum represent? | Wavelength |
| Which series lies in the visible region? | Balmer |
| Where does the Lyman series exist in the spectrum of hydrogen? | Ultraviolet |
| Who suggested the neutron in the nucleus? | Rutherford |
| Who discovered the neutron? | Chadwick |
| What is the ratio of the radii of an atom and its nucleus? | 10⁴ |
| What does nucleon mean? | Both |
| What are the charge and mass of a proton? | 1.6×10⁻¹⁹ |
| What is the mass of a neutron? | Exactly |
| Question | Answer |
| What should the J.A be? | 90 |
| What is the unit of induced EMF? | Volt |
| How is the magnetic flux changed when the coil is placed in the magnetic field of an electromagnet? | Changing |
| How is alternating current transmitted over long distances? | High |
| What source produces alternating current? | Reverses |
| What happens to the polarity of the source after every time interval T/2? | Keeps |
| What kind of energy is electrical energy nowadays? | Hydal |
| What do A.C generators use? | Hydal |
| What is the time interval during which the source changes its polarity? | Half |
| What is the most common source of alternating voltage? | Generator |
| How is the output voltage of an A.C generator given at any instant? | V₀sinωt |
| What is the angle through which the coil of A.C generator rotates? | 2π |
| What is the alternating voltage V when t=T/4? | V₀ |
| What is the waveform of alternating voltage? | Sine |
| What can the instantaneous value of voltage or current have? | Any |
| What is the force that maintains the strict long-range order between atoms of a crystalline solid? | Cohesive |
| What does the word amorphous mean? | Without |
| What kind of melting point do amorphous solids have? | No |
| At what temperature does ordinary glass soften into a paste-like state? | 500°C |
| What is the pattern of a crystalline solid? | Three |
| At what angle do all the sides meet in a cubic crystal? | 90° |
| How can the arrangement of molecules or atoms in a crystalline solid be studied? | X-ray |
| What is the dimensionality of a unit cell? | Three |
| Which is not a crystalline solid? | Glass |
| What is the temperature at which the vibrations break up the crystal structure called? | Melting |
| What is the whole structure obtained by repetition of unit cells called? | Crystal |
| What pattern do NaCl particles have? | Cubic |
| What holds atoms in their equilibrium positions in crystalline solids? | Cohesive |
| What is the smallest three-dimensional structural unit called? | Unit |
| What are computer chips made from? | Silicon |
| What is silicon classified as? | Semiconductor |
| What has led to huge advances in electronics? | Semiconductors |
| What is the use of chips in electronics described as? | Black |
| What form does a crystal of germanium or silicon in its pure form at absolute zero act as? | Insulator |
| What form does a crystal of germanium or silicon at room temperature act as? | Semiconductor |
| What are the atomic number and number of valence electrons in germanium? | 32, 4 |
| How are valence electrons in a silicon crystal bound? | Covalent |
| How many electrons does a stable configuration possess? | 8 |
| What is a p-type crystal? | Neutral |
| What are the majority charge carriers in the p-region of a p-n junction? | Holes |
| What is created when a covalent bond breaks? | Electron-hole |
| What is the impurity ratio in germanium? | 1:10⁶ |
| What increases when phosphorus is added to germanium? | Electrons |
| What does a hole in p-type may be due to? | Impurity |
| What is the concept of direction? | Relative |
| What are all motions? | Relative |
| When does a body at rest remain at rest? | Unbalanced |
| What is the earth strictly speaking? | Accelerated |
| What does the special theory of relativity treat? | Inertial |
| What does the general theory of relativity treat? | Accelerating |
| What would the distance from Earth to a star seem to an observer in a moving spaceship? | Smaller |
| What is the special theory of relativity based on? | Two |
| What kind of motion is impossible to detect? | Absolute |
| What is time? | Relative |
| What does the symbol ‘t’ denote in relativity problems? | Proper |
| What is the quantity v/c practically always? | Less |
| What is the correct statement about mass in relativity? | Greater |
| What happens to time due to relative motion? | Dilates |
| What happens to the aging process of the human body at very high speed? | Slow |
| What kind of quantity is the mass of an object? | Varying |
| What is Earth’s orbital speed? | 30 |
| What is the ratio of the speed of light to the orbital speed of Earth? | 10⁴ |
| What is the first series identified in the hydrogen spectrum called? | Lyman |
| When was the Balmer series identified? | 1885 |
| How can hydrogen gas atoms be excited? | Passing |
| Question | Answer |
| What is the force on a current-carrying conductor in a magnetic field proportional to? | Current |
| What does the force on a current-carrying conductor in a magnetic field depend on besides current? | Length |
| What is the force on a current-carrying conductor in a magnetic field proportional to besides current and length? | Field |
| What do magnetic lines of force do? | Cannot |
| Where do magnetic lines of force intersect? | Infinity |
| Where do magnetic lines of force intersect within a magnet? | Points |
| Where do magnetic lines of force intersect? | Neutral |
| What is the strength of the magnetic field around a straight conductor? | Same |
| What law does the strength of the magnetic field around a straight conductor obey? | Inverse |
| What is the strength of the magnetic field around a straight conductor proportional to? | Square |
| What shape are the lines of force around a straight wire carrying current? | Circular |
| What force does a current-carrying conductor experience perpendicular to a magnetic field? | ILB |
| How is the direction of force on a current-carrying conductor found? | Cross |
| What is magnetic flux defined as? | AB |
| What is the direction of a vector area? | Perpendicular |
| What is the flux if the field is along the normal to the area? | Maximum |
| What is the unit of magnetic induction? | Weber |
| What is magnetic induction defined as flux per unit area? | Perpendicular |
| What is the current produced by moving a loop of wire across a magnetic field called? | Induced |
| When is an EMF set up in a conductor? | Moves |
| How can an induced current be produced? | Changing |
| What is the phenomenon of generation of induced EMF called? | Electromagnetic |
| What does the induced current in a conductor depend upon? | Resistance |
| Where do Michael Faraday and Joseph Henry belong respectively? | England |
| What does the magnitude of induced EMF depend upon? | Rate |
| What does the galvanometer indicate when there is no relative motion between the magnet and coil? | No |
| What does the galvanometer show when the magnet is moved towards the coil instead of moving the coil? | Same |
| When is an induced current produced in a coil of constant area in a constant magnetic field? | Rotated |
| What happens in the circuit when the switch of coil P is suddenly closed? | Momentary |
| What does the galvanometer needle do when the switch is closed? | Deflects |
| When does the current in coil P grow from zero to its maximum value? | Instant |
| When does the current in coil P fall from its maximum value to zero? | Instant |
| What does the change in current in coil P cause? | Induced |
| What angle is needed for no EMF to be induced in a flat loop of wire in a changing magnetic field? | Perpendicular |
| What is the unit of induced EMF? | Volt |
| How is the magnetic flux changed when the coil is placed in the magnetic field of an electromagnet? | Changing |
| How is alternating current transmitted over long distances? | High |
| What source produces alternating current? | Reverses |
| What happens to the polarity of the source after every time interval T/2? | Keeps |
| What kind of energy is electrical energy nowadays? | Hydal |
| What do A.C generators use? | Hydal |
| What is the time interval during which the source changes its polarity? | Half |
| What is the most common source of alternating voltage? | Generator |
| How is the output voltage of an A.C generator given at any instant? | V₀sinωt |
| What is the angle through which the coil of A.C generator rotates? | 2π |
| What is the alternating voltage V when t=T/4? | V₀ |
| What is the waveform of alternating voltage? | Sine |
| What can the instantaneous value of voltage or current have? | Any |
| What is the entire waveform of sinusoidal voltage? | Instantaneous |
| What is the RMS value of voltage? | V₀/√2 |
| What is the highest value reached by the voltage or current? | Peak |
| What is the sum of positive and negative peak values called? | Peak-to-peak |
| What is the peak-to-peak value of alternating voltage? | 2V₀ |
| What is the average value of alternating voltage over a complete cycle? | Zero |
| What is the peak value of alternating current? | One |
| What is the RMS value of alternating voltage? | 0.7 |
| How is zirconia classified? | Ceramic |
| What happens to the amplitude of vibration of atoms in a metal crystal with a rise in temperature? | Increases |
| What is the transition from solid to liquid? | Order |
| What is the transition from solid to liquid? | Abrupt |
| What force maintains the strict long-range order of crystalline solids? | Interatomic |
| Question | Answer |
| What is the SI unit of charge? | Coulomb |
| What is the name given to the current due to the flow of positive charges? | Conventional |
| What is the SI unit of current that describes the flow of charge at the rate of? | Coulomb |
| In the case of metallic conductors, the charge carriers are? | Electrons |
| The charge carriers in an electrolyte are? | Positive |
| In gases, the charge carriers are? | Electrons |
| What is the conventional current the name given to the current due to the flow of? | Positive |
| What is the positive charge moving in one direction equivalent to in all external effects? | Negative |
| In a metal, the valence electrons are? | Free |
| Most practical applications of electricity involve? | Charges |
| What is the direction of force on a current-carrying conductor placed in a magnetic field? | Perpendicular |
| What is the pointer of a magnetic compass affected only by? | Magnets |
| What is a magnetic field? | Vector |
| What rule gives the direction of magnetic lines of force around a current- carrying wire? | Right-hand |
| Where is the magnetic field associated with a current-carrying copper rod? | Both |
| What does the force on a current-carrying conductor depend upon? | Angle |
| Question | Answer |
| Inflatable bag is a part of: | Sphygmomanometer |
| When a quarter of a cycle is completed, the phase of vibration is: | 90 |
| Distance covered during one vibration of an oscillating body in terms of amplitude A is: | 4A |
| A body of mass 0.031 kg attached to one end of a spring of spring constant 0.3 N/m, then time period of spring mass system will be: | 2.0 |
| The time period of a simple pendulum is independent of its: | Mass |
| If the time period of a pendulum is doubled by increasing its length, then its frequency will: | Half |
| The string of a simple pendulum should be: | Inextensible |
| Second’s pendulum is the pendulum whose time period is: | 2 |
| An object undergoes SHM. Its maximum speed occurs when its displacement from the equilibrium position is: | Zero |
| Free oscillations are always produced by: | Restoring |
| If the waves produced in a microwave oven are of wavelength 12 cm, then their frequency will be: | 2500 |
| The square root of 0.4 is: | Smaller |
| Wavelength and time period T are related to the velocity v of the wave as: | Tv |
| The ratio of speed of sound in hydrogen to the speed of sound in oxygen is: | 4:1 |
| If the atmospheric pressure is doubled, the speed of sound: | Constant |
| Two identical tuning forks vibrate at 256 c/sec. After loading one of them, 6 beats/sec are heard when forks are sounded together. The period of the loaded fork is: | 0.006 |
| The effect of loading the prongs of a tuning fork with wax is to: | Decrease |
| Given for (cylindrical) metal wire, ρ = 1 kg/m, diameter = 2mm, l = 32 cm, find out mass: | 10 |
| The wavelength of sound produced by an open-end organ pipe in nth mode is: | 2l/n |
| In which case is Doppler’s effect used: | All |
| As an empty test tube is filled with water, the frequency of the air column: | Increases |
| Frequency of red color as compared to that of violet color is: | Smaller |
| Phase change of 180 is equivalent to a path difference of: | λ/2 |
| Conditions for interference are that the two sources should be coherent and: | Close |
| To find the wavelength of light by his experiment, Newton utilized: | Phase |
| The wavelength of light can be found by means of Michelson Interferometer using the formula: | 2L/m |
| A grating has 5000 lines per centimeter. The grating element will be given as: | 2×10^-4 |
| Diffraction effect is: | More |
| In Bragg’s equation, d represents: | Interplanar |
| X-ray diffraction has been used in studying the: | Crystal |
| Which of the following cannot be polarized: | Sound |
| With age, the least distance of distinct vision: | Increases |
| Conventionally, all the distances are measured from: | Optical |
| The image of an object 5 mm length is only 1 cm high. The magnification produced by the lens is: | 2 |
| Resolving power in mth order diffraction for grating is given by: | mN |
| The working of a compound microscope is based on the principle of: | Refraction |
| A spectrometer is used to study: | Spectra |
| The magnifying power of an astronomical telescope increases with: | Increasing |
| In Michelson’s experiment, the rotational mirror and plane mirror were mounted on: | Same |
| A material having a high refractive index has: | High |
| Avogadro’s number is known as the number of molecules in: | One |
| The nature of thermal radiation is similar to: | Light |
| In which process, the change in internal energy of the system is zero: | Isothermal |
| If A is the area of the piston and dy is the distance moved by the piston, then change in volume is expressed by: | Ady |
| Carnot cycle is: | Reversible |
| The efficiency of a practical heat engine: | Cannot |
| Number of spark plugs needed in a diesel engine is: | None |
| No entropy change is associated with: | Adiabatic |
| Only those processes are probable to take place for which entropy of the system: | Increases |
| When heat is added to the system, the entropy change is: | Positive |
| If the distance between two charges is doubled, the force between them will become: | One-fourth |
| The value of C in Coulomb’s law is: | 9×10^9 |
| The SI unit of constant k in Coulomb’s law is: | Nm²/C² |
| Two charges are located respectively at positions r1 = 3.0i and r2 = 4.0i w.r.t. a certain reference point. The distance between the charges is: | 1 |
| Origin of the electric and gravitational forces: | Unknown |
| The concept of electric field theory was introduced by: | Faraday |
| Michael Faraday is known for his work on: | Electric |
| There are two charges of 1μC and 5μC placed at a certain distance. The ratio of the forces acting on each other will be: | 1:1 |
| Electric field strength is defined as: | Work |
| Question | Answer |
| Conventionally the angular velocity is directed at an angle of: | 90 |
| If a toy car moves with a uniform speed of 2 m/sec in a circle of 0.4 m radius, its angular velocity in rev/sec is: | 0.8 |
| Thirty-six degrees is equal to: | π/5 |
| The relation between τ, I, and α is as follows: | τ |
| If a gymnast sitting on a rotating stool with his arms outstretched brings his arms towards the chest, then its angular velocity will: | Increase |
| The net force acting on a 100 kg man standing in an elevator accelerating downward with a = 0.8 m/sec² comes out to be: | 980 |
| A ball tied at one end of the string is swung in a vertical circle of radius r under the action of gravity. The net force towards the center at the top must point is: | T+W |
| The number of “Earth stations” which transmit signals to satellites and receive signals from them are: | 24 |
| INTELSAT operates at frequencies 4, 6, 11, 14 having a unit of: | GHz |
| Einstein’s theory about gravity is better than Newton’s because it gave an explanation of: | Bending |
| The property of fluids due to which they resist their own flow is called: | Viscosity |
| Density of a fluid is defined as: | Ratio |
| Stoke’s law holds for: | Motion |
| Fog droplets are suspended in air when their weight is balanced by: | Upward |
| The equation of continuity is defined as Av. The unit of Av is: | Cubic |
| Turbulent flow is: | Unsteady |
| Unit of density to mass ratio is: | m³ |
| Volume of a cylinder can be found by: | Area |
| Normally, the blood pressure (torr unit) in a healthy human body varies from: | 120/80 |
| Question | Answer |
| When brakes are applied to a fast-moving car, the passengers will be thrown: | Forward |
| The direction of acceleration of a body moving in a straight line is: | Along |
| Consult page 50 of your text and tick the correct statement: | Same |
| The law of conservation of linear momentum is valid for: | All |
| If V denotes volume of the liquid coming out of a pipe per second, v its velocity and A as area of the pipe, then the correct formula will be: | V |
| If m means mass of gases ejected per second from a rocket and v shows the change in velocity, then mv is named as: | Force |
| Range of the projectile is the same for the following pair of angles: | 35 |
| For maximum horizontal range, the angle of projection must be: | 45 |
| At the highest point, we can claim that: | Zero |
| Torque is also called: | Moment |
| Work done along a closed path in a gravitational field is: | Zero |
| Tick the conservative force: | Spring |
| A body of weight 1 N has a kinetic energy of 1 Joule when its speed is: | 1.46 |
| When two protons are brought closer, potential energy of both of them: | Increases |
| The velocity given to a body to go out of the influence of Earth’s gravity is known as: | Escape |
| One KWh is equal to: | 3.6 |
| The consumption of energy by a 1000 W heater in half an hour is: | 0.5 |
| Root out the conventional source of energy from: | Energy |
| Ethanol (alcohol) is a type of: | Bio |
