27/03/2020Quantities, Mass and Weight(Senior Class Physics Study by Topics) 0Comments by Gate Academy Welcome to your Quantities, Mass and Weight(Senior Class Physics Study by Topics) NAME EMAIL PHONE NUMBER 1. Which of the following is not a vector quantity?AccelerationDisplacementForceWeightAltitude2. We can use the Newton to quantify an object'skinetic energyweightpotential energygravitationacceleration3. The fundamental SI of material quantity is thekilogrammolepoundjoulenewton4. In the United States of America, people often talk about British thermal units per hour (Btu/h) to quantifycondensation ratespowerenergyheat of fusionspecific heat5. The distance x, m traveled by an object in time, t seconds is described by the equation x = 10 + 12t².Find the average speed of the particle between the time interval, t = 2s and t = 5s.108m/s72m/s60m/s84m/s6. Which of the following nonstandard "units" could we theoretically use to express accumulated power consumption over time?the watt per minutegcmthe joule/hourgcm²/s²gcm/s7. A tugboat is traveling from New Jersey to Arkansas across a river with a resultant velocity of 20knots. If the river flows at 12knots, the direction of motion of the boat relative to the direction of water flow is136.87°90°53.13°36.87°8. Which of these quantities are vectors?I. MomentII. Temperature gradientIII. TemperatureIV. DensityI & II OnlyII & III OnlyI & IV OnlyII, III & IV Only9. Which of the following is a set of vectors?force, mass and momentmass, volume and densitymass, weight and densityacceleration, moment and velocity10. Which of the followings are the correct S.I units of the quantities indicated?I. N (Force)II. N/m (Torque)III. Watt (Power)IV. Kgm/s² (Momentum)I, II & III OnlyI & III OnlyI, III & IV OnlyI & II Only11. Imagine that we have access to a machine that collects energy over a period of time, and then converts all the energy into matter. We employ that machine to collect sunlight for a few weeks, and then push a button marked "Make Matter!"How can we calculate the mass of the resulting material sample in kilograms?divide the total collected energy in joules by the square of the speed of light in meters per secondmultiply the total collected energy in joules by the square of the speed of light in meters per secondwe can'tdivide the square of the speed of light in meters per second by the total collected energy in joulesdivide speed of light in meters per second by the total collected energy in joules12. Dhanya travels 12km eastwards to a point B and then 5km southwards to another point C. Calculate the difference between the magnitude of the displacement of Dhanya and the distance traveled by him.7km4km13km30km17km13. Which of the following is a vector quantity?CurrentCurrent densityTimeMass14. The international agreed system of units (S.I) for physical measurements are?g, m, sKg, m, slb, ft, sKg, cm, scm, g, s15. Which of the following unit is equivalent to Kgm/s?NmsN/sJ/sNs16. Which of the following can be used to measure accurately to three decimal places in centimeters?None of the aboveRulerVernier calliperMeter ruleMicrometer screw gauge17. If we want to talk meaningfully about the velocity vector for an object at a certain moment in time, we must specify the object's instantaneousmass & displacementspeed & directionmass & directionmass & speed18. Which of the following physical quantities is a scalar?Magnetic flux densityGravitational field intensityMagnetic fluxElectric potentialElectric field intensity19. What is the least possible error in using a rule graduated in centimeters?1.0cm2.0cm0.5cm0.1cm20. At what respective values of x, y and z would the unit of force, the Newton, be dimensionally equivalent to M^{x}L^{y}T^{z }1, -1, 2-1, 1, 2-1, 1, -21, 1, -221. What's the Kelvin equivalent of the lowest possible temperature?-459.15 KNothing, because there's no limit to how cold things can get0 K-273.15 K22. Which of the following parameters manifests itself as a vector quantity?visible-light intensitymasstemperaturevelocity23. The unit of moment of a couple is measured inN/m²N/mNm²Nm24. In the diagram, P, Q & R are vectors. Which of the following options gives the correct relationship between the vectors?P = Q + RP = R - QP + Q + R = 0P = Q - R25. The diagram below shows two vectors at right angles to each other. The value of the resultant vector is14.0N10.0N11.0N12.0N26 out of 25Time is Up!