27/03/2020 Quantities, 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. The dimensions of viscosity are I. ML^{-1}T^{-1} II. M^{2}L^{-1}T^{-1} III. M^{-1}L^{-1}T^{-1} IV. MLT^{-1}IVIIIIII2. An object moves 4m eastwards and then 3m southwards. Its displacement from its original position is12m SE5m SE7m SE1m SE3. The inner diameter of a small test tube can be measured accurately using?Pair of vernier calliperMeter rulePair of dividersA micrometer screw gauge4. Which of the following pairs of units do not agree in dimension?Meters & light yearsMoles & coulombsMeters & feetCandela & microwatts5. The pair of physical quantity that are scalar only areVolume and areaImpulse and timeLength and displacementMoment and momentum6. The length of a ten tick is 8cm and it is covered in 1/5 seconds.Â Find the velocity of the body.0.02cm/s1.6cm/s40cm/s16cm/s7. The physical quantity that has the same dimensions as impulse is?Surface tensionPressureEnergyMomentum8. A vernier scale was formed by dividing a length of 19mm into 20 equal parts. If the vernier scale is used with a main scale marked in mm, what is the smallest distance that can be measured?0.005mm0.5mm0.1mm0.001mm0.05mm9. Which of the following sets consist entirely of a scalar quantity?Displacement, Electric field & EnergyImpulse, Mass & Magnetic fluxPressure, Work & Electric potentialSpeed, Momentum & Distance10. Which of the following is a vector quantity?CurrentCurrent densityTimeMass11. The international agreed system of units (S.I) for physical measurements are?Kg, cm, slb, ft, scm, g, sg, m, sKg, m, s12. The dimensions of surface tension are I. MT^{-2} II. M^{2}T^{-2} III. M^{-1}T^{2}L^{-1} IV. MT^{2}L^{-1}IIVIIIII13. Which of the following quantities has the same unit as the Watt?Force x timeForce x accelerationForce x velocityForce x distance14. To determine the weight of an object, you couldNone of the aboveAny of the aboveUse a beam balanceFind the force necessary to give it a certain accelerationUse a spring balance15. The velocity v of a particle in time tÂ is given by the equationv = 10 + 2tÂ². Find the instantaneous acceleration after 5 seconds.60m/sÂ²15m/sÂ²20m/sÂ²10m/sÂ²16. 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/sÂ² (Momentum)I, III & IV OnlyI & II OnlyI, II & III OnlyI & III Only17. Two cars moving in the same direction have speeds of 100km/h and 130km/h. What is the velocity of the fastest car as measured by an observer in a slower car?130km/h30km/h200km/h230km/h18. In 3D space, we can define the magnitude of a vector in terms ofcelestial latitude & longituderight ascension & declinationthe location of the coordinate originthe length of the line segment representing it19. Which of the following unit is equivalent to Kgm/s?NmsNsJ/sN/s20. The diagram below shows two vectors at right angles to each other. The value of the resultant vector is10.0N12.0N14.0N11.0N21. What is the reading of the vernier scale?1.88cm1.97cm1.28cm1.80cm22. We can express gravitational acceleration inmeters per second squaredkilograms per meterkilograms per poundmeters23. What's the Kelvin equivalent of the lowest possible temperature?Nothing, because there's no limit to how cold things can get0 K-459.15 K-273.15 K24. Two points on a velocity time graph have co-ordinates (5s, 10m/s) and (20s, 20m/s). Calculate the mean acceleration between the two points.1.50m/sÂ²0.67m/sÂ²0.83m/sÂ²2.00m/sÂ²25. If the tape of a ticker-timer shows dots equally spaced at 1cm apart and the vibrator makes 50 dots per second, what is the speed of the tape in meter per second?5.0m/s0.02m/s50m/s0.5m/s0.1m/s26 out of 25Time is Up!