Welcome to your Quantities, Mass and Weight(Senior Class Physics Study by Topics) NAME EMAIL PHONE NUMBER 1. Suppose that we find a certain quantity expressed in kilowatt-seconds. We can convert this quantity to Ohms per Henry Amperes Joules Coulombs 2. 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? 50m/s 5.0m/s 0.1m/s 0.02m/s 0.5m/s 3. I. Diameter of a small ball bearingII. Thickness of a piece of paperIII. Diameter of a measuring cylinderIV. Length of a piece of wireWhich of the above can be measured using a micrometer screw gauge? II and III Only I and II Only I, II and IV Only III and IV Only 4. Which of the following set of physical quantities are vectors? Friction & Momentum Energy & Power Electric field potential & Electric field intensity Force ratio & Velocity ratio Capacitance & Inductance 5. What is the reading of the vernier scale? 1.80cm 1.28cm 1.97cm 1.88cm 6. The velocity v of a particle in time t is given by the equationv = 10 + 2t². Find the instantaneous acceleration after 5 seconds. 10m/s² 15m/s² 20m/s² 60m/s² 7. Which of the following is a set of vectors? acceleration, moment and velocity mass, volume and density force, mass and moment mass, weight and density 8. 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 6km south 6km north 4km east 9. 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, 2 1, 1, -2 10. A stream is flowing at 0.75m/s and a boat heading perpendicularly to the stream landed at the opposite bank at an angle 30°. Calculate the velocity of the boat? 0.65m/s 1.50m/s 1.00m/s 0.86m/s 11. In the diagram, P, Q & R are vectors. Which of the following options gives the correct relationship between the vectors? P = Q - R P = Q + R P + Q + R = 0 P = R - Q 12. What's the Kelvin equivalent of the lowest possible temperature? -273.15 K Nothing, because there's no limit to how cold things can get 0 K -459.15 K 13. Which of the following is not a fundamental S.I unit? Second Kelvin Radian Ampere Meter 14. Which of the following parameters manifests itself as a vector quantity? visible-light intensity mass temperature velocity 15. 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? we can't multiply the total collected energy in joules by the square of the speed of light in meters per second divide the square of the speed of light in meters per second by the total collected energy in joules divide the total collected energy in joules by the square of the speed of light in meters per second divide speed of light in meters per second by the total collected energy in joules 16. 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 instantaneous mass & displacement mass & speed speed & direction mass & direction 17. The power source of a ticker-timer vibrates 40 times in one second. If the ticker-timer made 200 dots during an experiment, determine how long the experiment lasted. 15 seconds 45 seconds 5 seconds 25 seconds 18. A boat travels due east at a speed of 40m/s across a river flowing due south at 30m/s. What is the resultant speed of the boat? 1.3m/s 10m/s 70m/s 50m/s 19. Which of the following instruments has a reading accuracy of 0.5mm? Meter rule Protractor Vernier callipers Spring balance Micrometer screw gauge 20. Which of the following represents the correct precision if the length of a piece of wire is measured with a meter rule? 35.01mm 35.0mm 35mm 35.00mm 21. The inner diameter of a small test tube can be measured accurately using? Pair of vernier calliper Pair of dividers A micrometer screw gauge Meter rule 22. The thickness of the central portion of a thin converging lens can be determined very accurately by using? Vernier calliper A telescope A micrometer screw gauge A microscope 23. We can express electrical current in terms of charge carriers per square meter per kilogram per cubic meter per second 24. Which of the following physical quantities is a scalar? Electric potential Gravitational field intensity Electric field intensity Magnetic flux Magnetic flux density 25. Which of the following nonstandard "units" could we theoretically use to express accumulated power consumption over time? gcm gcm/s the joule/hour the watt per minute gcm²/s² 1 out of 25 Time is Up! Time's up