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. Which of the following readings cannot be determined with a meter rule?2.00cm2.55cm2.56cm2.50cm2. What is the least possible error in using a rule graduated in centimeters?1.0cm0.1cm2.0cm0.5cm3. Suppose that we find a certain quantity expressed in kilowatt-seconds. We can convert this quantity toOhms per HenryAmperesJoulesCoulombs4. We can use the Newton to quantify an object'sgravitationweightaccelerationpotential energykinetic energy5. Which of the following nonstandard "units" could we theoretically use to express accumulated power consumption over time?the watt per minutethe joule/hourgcm/sgcmgcm²/s²6. Which of the following can be used to measure accurately to three decimal places in centimeters?Meter ruleNone of the aboveVernier calliperMicrometer screw gaugeRuler7. What's the Kelvin equivalent of the lowest possible temperature?0 KNothing, because there's no limit to how cold things can get-459.15 K-273.15 K8. Which of the following nonstandard ''units'' could we theoretically use to express the frequency of a sound wave?the British thermal unit per meterthe joule per minutethe cycle per minutethe kilogram-meter per minutethe hertz per minute9. In order to remove the error of parallax when taking measurements with a meter rule, the eye should be focusedVertically upwards on the markingsSlantingly towards the right on the markingsVertically downwards on the markingsSlantingly towards the left on the markings10. Which of the following quantities has the same unit as the Watt?Force x velocityForce x accelerationForce x timeForce x distance11. Which of the following is not a vector quantity?AltitudeWeightDisplacementAccelerationForce12. Amanda walks 1km due east and then 1km due north, her displacement is1km N30°E1km N15°E√2 km N60°E√2 km N45°E2km N75°E13. The physical quantity that has the same dimensions as impulse is?EnergyMomentumPressureSurface tension14. 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 & displacementmass & speedmass & directionspeed & direction15. Which of the following physical quantities is a scalar?Magnetic flux densityMagnetic fluxGravitational field intensityElectric potentialElectric field intensity16. 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.0.67m/s²2.00m/s²1.50m/s²0.83m/s²17. Which of the following are scalar quantities?I. MomentumII. EnergyIII. Mechanical advantageIV. ThrustII & IV OnlyIII & IV OnlyII & III OnlyI & II OnlyI & IV Only18. Which of the following unit is equivalent to Kgm/s?N/sNmsJ/sNs19. Which of the following pairs of units do not agree in dimension?Moles & coulombsMeters & feetMeters & light yearsCandela & microwatts20. The diagram below represents a portion of vernier calliper. What is its reading?7.10cm6.90cm6.28cm7.09cm6.34cm21. Which of the following statements are true about the spring balance and the chemical balance?I. Both are used to measure the mass of an objectII. Either of them may be used to measure the weight of an objectIII. The spring balance works on the principle of Hooke's law while the chemical balance works on the principle of momentsIV. A change in gravity changes the reading of a spring balance but not that of a chemical balance.I and IVI, II and IIIIII and IVII and IIII and III22. What is the reading of the vernier scale?1.80cm1.28cm1.88cm1.97cm23. An example of scalar quantity isweightvelocityacceleration due to gravitymomentumelectric charge24. To determine the weight of an object, you couldAny of the aboveUse a spring balanceNone of the aboveUse a beam balanceFind the force necessary to give it a certain acceleration25. Which of the following set of physical quantities are vectors?Capacitance & InductanceFriction & MomentumForce ratio & Velocity ratioEnergy & PowerElectric field potential & Electric field intensity26 out of 25Time is Up!