Welcome to your Quantities, Mass and Weight(Senior Class Physics Study by Topics) NAME EMAIL PHONE NUMBER 1. Which of the following is a fundamental unit? Newton Watt Joule Ampere 2. Which of the following represents the correct precision if the length of a piece of wire is measured with a meter rule? 35.0mm 35mm 35.01mm 35.00mm 3. The values of p, q, and r respectively in the expression M^{p}L^{q}T^{r} for the universal gravitational constant G are^{} 2, -3, -2 -1, 3, -2 -2, -1, 3 -1, 2, -3 4. Which of the following is a vector quantity? Time Mass Current Current density 5. Which of the following physical quantities is not a vector? electric field intensity magnetic induction work force velocity 6. 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. 84m/s 108m/s 72m/s 60m/s 7. The velocity v of a particle in time t is given by the equationv = 10 + 2t². Find the instantaneous acceleration after 5 seconds. 60m/s² 10m/s² 15m/s² 20m/s² 8. What's the Kelvin equivalent of the lowest possible temperature? -459.15 K -273.15 K 0 K Nothing, because there's no limit to how cold things can get 9. The diagram below represents a portion of vernier calliper. What is its reading? 7.09cm 6.28cm 7.10cm 6.90cm 6.34cm 10. Which of the following nonstandard ''units'' could we theoretically use to express the frequency of a sound wave? the kilogram-meter per minute the joule per minute the hertz per minute the British thermal unit per meter the cycle per minute 11. Which of the following instruments has a reading accuracy of 0.5mm? Micrometer screw gauge Vernier callipers Meter rule Spring balance Protractor 12. For which of the underlisted quantities is the derived unit ML^{2}T^{-2} correct?I. Moment of a forceII. WorkIII. Acceleration I Only II Only II & III I & II 13. 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. 17km 30km 13km 4km 7km 14. What is the least possible error in using a rule graduated in centimeters? 0.5cm 1.0cm 2.0cm 0.1cm 15. Which of the following pairs of units do not agree in dimension? Moles & coulombs Meters & light years Meters & feet Candela & microwatts 16. We can express electrical current in terms of charge carriers per kilogram per second per square meter per cubic meter 17. The thickness of the central portion of a thin converging lens can be determined very accurately by using? A microscope A micrometer screw gauge A telescope Vernier calliper 18. Which of these quantities are vectors?I. MomentII. Temperature gradientIII. TemperatureIV. Density I & IV Only I & II Only II, III & IV Only II & III Only 19. Which of the following quantities are scalar?I. Electric potentialII. TorqueIII. MomentumIV. Kinetic Energy III & IV II & III I & II I & IV 20. The unit of moment of a couple is measured in N/m N/m² Nm Nm² 21. 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, II and III I and IV I and III II and III III and IV 22. We can express gravitational acceleration in kilograms per pound meters meters per second squared kilograms per meter 23. In order to remove the error of parallax when taking measurements with a meter rule, the eye should be focused Vertically upwards on the markings Vertically downwards on the markings Slantingly towards the left on the markings Slantingly towards the right on the markings 24. The pair of physical quantity that are scalar only are Length and displacement Volume and area Impulse and time Moment and momentum 25. A truck travels 10km northwards, 4km eastwards, 6km southwards and 4km westwards to arrive at a point T. What is the total displacement? 4km north 4km east 6km south 6km north 1 out of 25 Time is Up! Time's up