Description : Which of the following statements is incorrect? (a) The mass of a body is not the same as its weight (b) Mass is a measure of quantity of matter whereas weight is a force (c) Mass of a ... but its weight remains constant (d) In the MKS system, mass is expressed in kilogram and weight in newton
Last Answer : Ans:(c)
Description : Which of the following is NOT an SI unit of measure? w) watt x) newton y) joule z) erg e) second
Last Answer : ANSWER: Z -- ERG
Description : If no external force acts on a system of bodies, the total linear momentum of the system of bodies remains constant. Which law states this? (1) Newton first law (2) Newton second law (3) Newton third law (4) Principle of conservation of linear momentum
Last Answer : (4) Principle of conservation of linear momentum Explanation: Principle of conservation of linear momentum states If no external force acts on a system of bodies, the total linear momentum of the system of bodies remains constant.
Last Answer : (4) Principle of conservation of linear momentum Explanation: Principle of conservation of linear momentum states if no external force acts on a system of bodies, the total linear momentum of the system of bodies remains constant.
Description : When a slingshot exerts a 10 Newton force on a rock, the rock accelerates at 50 meters per second squared. What force is required to accelerate the rock to 150 meters per second squared?
Last Answer : ANSWER: 30 NEWTONS
Description : A certain spring is known to obey Hooke's Law. If a force of 10 newtons stretches the spring 2 meters, how far will a 30 newton force stretch the spring?
Last Answer : ANSWER: 6 METERS
Description : A two-stage rocket attains a velocity of 3,000 meters per second when it drops the first stage and ignites the second. It consumes 1 kilogram of fuel per second and its exhaust speed is 2,000 meters per second. ... ? w) 2,000 Newtons x) 3,000 Newtons y) 2,000 Newton-seconds z) 3,000 Newton-seconds
Last Answer : ANSWER: W -- 2,000 NEWTONS
Description : A force may change ______ of an object. (1) speed (2) direction (3) shape (4) All options are correct
Last Answer : (4) All options are correct
Description : 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
Last Answer : Volume of the rotating object
Description : ______ used to measure speech volume A. Volume meter B. Audio frequency meter C. Volume unit meter D. Speech meter
Last Answer : C. Volume unit meter
Description : Electromagnetic radiation theory was profounded by ______. A. Sir Edward Appleton B. Sir Isaac Newton C. James Clerk Maxwell D. Michael Faraday
Last Answer : C. James Clerk Maxwell
Description : Entropy is measured in ______. A. Joule/Kelvin B. Joule-Meter/Kelvin C. Meter/Kelvin D. Newton/Kelvin
Last Answer : Joule/Kelvin
Last Answer : Ball Single Newton. Newton Measure Of the instrument Name Dynamometer.
Description : Tensile stress is equal to A. Force per unit area B. Force per unit volume C. Extension per unit length D. Extension per unit area
Last Answer : Force per unit area
Description : Stress is force applied on A. volume B. cross sectional area C. unit length D. across diagonal
Last Answer : cross sectional area
Description : Normal force acting per unit cross sectional area is called A. weight B. pressure C. volume D. friction
Last Answer : pressure
Description : The force which produces an acceleration of 1 m/sec2 in a mass of 1 kg is called a.100 ergs b.one Newton c.one watt d.One erg e.one joule
Last Answer : b. one Newton
Description : If force is expressed in Newton and the distance in metre, then the work done is expressed in -General Knowledge
Last Answer : Work done is expressed in force divided by distance. SI unit is joule. hope this helps u
Description : A force F = 4i + 6j + 3k acting on a particle produces a displacement of S = 2i + 3j + 5k where F is expressed in newton and s in metre.
Last Answer : A force F = 4i + 6j + 3k acting on a particle produces a displacement of S = 2i + 3j + 5k where ... and s in metre. Find the work done by the force.
Description : How can you use newton second law to find force?
Last Answer : To find the force:Mass x AccelerationExample:F=m*aF=55 kg * 2.0 m/s^2F= 110 kg*m/s^2F=110 N(Because "kg" times "m/s^2" is (N))To find The Acceleration:Net Force/ Mass~G-Money
Description : According to newton second law of motion, the acceleration of an object equals the net force acting on the object divide by the object?
Last Answer : Mass.
Description : One joule is the energy required to (A) Raise the temperature of 1 gm of water by 1°C (B) Raise the temperature of 1 kg of water by 1°C (C) Move a mass of 1 gm by 1 cm distance by a force of 1 Newton (D) Move a mass of 1 kg by 1 m distance by a force of 1 Newton
Last Answer : Answer : D
Description : Find the force between 2C and -1C separated by a distance 1m in air(in newton). a) 18 X 10 6 b) -18 X 10 6 c) 18 X 10 -6 d) -18 X 10 -6
Last Answer : b) -18 X 10 6
Description : The unit of force in S.I. units is (A) Kilogram (B) Newton (C) Watt (D) Dyne
Last Answer : (B) Newton
Description : __________ is the unit of force. a) Newton b) Pascal c) Hertz d) Joule
Last Answer : Newton
Description : The electric force between two charges placed in air is 2 Newton. When placed in a medium of ∈r = 80, the force reduced to: (a) 0.029 N (b) 0.025 N (c) 0.03 N (d) 0.04 N
Last Answer : (b) 0.025 N
Description : The constant temperature, the product of pressure and volume of a given amount of a gas is constant . This is ______. (1) Gay-Lussac law (2) Charles’s law (3) Boyle’s law (4) Pressure law
Last Answer : (3) Boyle’s law Explanation: Boyle's law is a gas law, stating that the pressure and volume of a gas have an inverse relationship, when temperature is held constant. If volume increases, then pressure decreases and vice versa when temperature is held constant.
Description : A gap is left between two rails of a railway track to accommodate ______ of the metal. (1) areal expansion (2) volume expansion (3) liner expansion (4) apparent expansion
Last Answer : (3) liner expansion Explanation: The volume of materials changes depending on current temperature. Usually heat makes them expand, and cold leads them to contract. To a first approximation, the ... linear expansion coefficient". It is the fractional change in length per degree of temperature change.
Description : How many laws of motion did Newton discover ?
Last Answer : Scientist Newton discovered 3 laws of motion .
Description : In what year did Newton publish the dynamics ?
Last Answer : Newton published the law of motion in 1687 .
Description : What formula did Newton use when a boatman sails a boat ?
Last Answer : A sailor applied Newton's 3rd law while sailing .
Description : What is the weight of a mass of 1kg equal to Newton ?
Last Answer : Sitting on the earth , the weight of an object of mass 1 kg = mg = 1 * 9.8 [g = 9.8ms ^ -2] = 9.8 N ( Newton) Therefore , the weight of an object of mass 1 kg on Earth is 9.8 Newtons.
Description : The quantum theory of light was given by – (1) Einstein (2) Plank (3) Newton (4) Faraday
Last Answer : (2) Plank Explanation: The Quantum theory of light was first discovered by Max Planck. In 1900, Planck, attempting to explain body radiation suggested that although light was a wave.
Description : What is the SI unit of frequency? (1) Newton (2) Watt (3) Farad (4) Hertz
Last Answer : (4) Hertz Explanation: The number of waves or vibrations passing through a point in one second is called Frequency. The SI (System International) Unit of Frequency is Hertz(Hz).
Description : Which unit we use to express nuclear sizes? (1) Tesla (2) Newton (3) Fermi (4) None of above
Last Answer : (3) Fermi
Description : The scientist who first discovered that the Earth revolves round the Sun was - (1) Newton (2) Dalton (3) Copernicus (4) Einsteirn
Last Answer : (3) Copernicus Explanation: Nicolaus Copernicus was a Polish astronomer who put forth the theory that the Sun is at rest near the center of the Universe, and that the Earth, spinning on its axis once daily, revolves annually around the Sun.
Description : Who developed the theory of Evolution? (1) Charles Darwin (2) Isaac Newton (3) Pranav Mistry (4) Galileo Galilei
Last Answer : (1) Charles Darwin Explanation: Summary of Darwin's Theory of Evolution: A species is a population of organisms that interbreeds and has fertile offspring.
Description : What is the telescope designed to search for earth-size planets in the nearby region of our galaxy, termed as? (1) Hubble telescope (2) Kepler telescope (3) Copernicus telescope (4) Newton telescope
Last Answer : (1) Hubble telescope Explanation: The Hubble Space Telescope (HST) is a space telescope that was launched into low Earth orbit in 1990 and remains in operation.
Description : Who enunciated the laws of planetary motion? (1) Nicolaus Copernicus (2) Johannes Kepler (3) Isaac Newton (4) Galileo
Last Answer : (2) Johannes Kepler Explanation: Kepler's laws of planetary motion are three scientific laws describing orbital motion, each giving a description of the motion of planets around the Sun. The laws are: the ... of a planet is directly proportional to the cube of the semi-major axis of its orbit.
Description : Who measured the velocity of light first? (1) Galileo (2) Newton (3) Romer (4) Einstein
Last Answer : (3) Romer Explanation: Galileo is often credited with being the first scientist to try to determine the speed of light. Galileo's experiment was carried out by the Accademia del Cimento of Florence ... 11 microseconds. The first quantitative estimate of the speed alight was made in 1676 by Romer.
Description : Who defined the law of gravitation? (1) Newton (2) Archimedes (3) Galileo (4) Faraday
Last Answer : (1) Newton Explanation: Sir Isaac Newton brought out his monograph, titled `Philosoplliae Naturalis Principia Mathematica,' in 1687. In this work, Newton described universal gravitation and ... gravitation, thus removing the last doubts about helio-centrism and advancing the Scientific Revolution.
Description : 1 N (newton) is equal to A. 102 dynes B. 103 dynes C. 104 dynes D. 105 dynes
Last Answer : 105 dynes
Description : Units of strain are A. Newton B. Joules C. Watt D. no units
Last Answer : no units
Description : Units of stress are A. Newton B. Joules C. Pascal D. Watt
Last Answer : Pascal
Description : The first reflecting telescope was built by: w) Galileo x) Copernicus y) Tycho Brahe z) Isaac Newton
Last Answer : ANSWER: Z -- ISAAC NEWTON
Description : The driveshaft of a car rotates at 450 radians per second with a torque of 150 Newton-meters. How much power is produced?
Last Answer : ANSWER: 67,500 WATTS
Description : The gravitational constant for the universe was measured by which of the following? w) Kepler x) Einstein y) Newton z) Cavendish
Last Answer : ANSWER: Z -- CAVENDISH
Description : The value of G, the universal gravitational constant, was measured experimentally by: w) Newton x) Cavendish y) Copernicus z) Kepler
Last Answer : ANSWER: X -- CAVENDISH
Description : A Newton is equal to which of the following? w) kilogram-meter per second x) meter per second squared y) kilogram-meter per second squared z) kilogram per meter-second
Last Answer : ANSWER: Y -- KILOGRAM-METER PER SECOND SQUARED
Last Answer : Johannes Kepler