Welcome to your Quantities, Mass and Weight(Senior Class Physics Study by Topics) NAME EMAIL PHONE NUMBER 1. Which of the following is the dimensions of pressure? I. ML-1T-2 II. ML-3 III. MLT-2 IV. ML2T-3 II IV I III 2. When we talk about steradians, we talk about Solid angular measure gravitational acceleration surface area volume 3. 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/s 0.1m/s 0.5m/s 50m/s 0.02m/s 4. Which of these quantities are vectors?I. MomentII. Temperature gradientIII. TemperatureIV. Density II & III Only I & II Only I & IV Only II, III & IV Only 5. 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 = 0 P = Q + R P = R - Q 6. 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? 70m/s 1.3m/s 10m/s 50m/s 7. Which of the following represents the correct precision if the length of a piece of wire is measured with a meter rule? 35mm 35.0mm 35.01mm 35.00mm 8. 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 II and III III and IV I and III I and IV 9. Which of the following is a vector quantity? Current density Current Time Mass 10. The international agreed system of units (S.I) for physical measurements are? Kg, m, s g, m, s lb, ft, s cm, g, s Kg, cm, s 11. What is the reading of the vernier scale? 1.80cm 1.97cm 1.28cm 1.88cm 12. Which of the following parameters manifests itself as a vector quantity? visible-light intensity velocity temperature mass 13. Which of the following unit is equivalent to Kgm/s? Ns J/s N/s Nms 14. The values of p, q, and r respectively in the expression MpLqTr for the universal gravitational constant G are -1, 3, -2 -2, -1, 3 -1, 2, -3 2, -3, -2 15. One of the following readings represent the measurement of the length of a metal rod using vernier callipers. 5.16cm 5cm 5.160cm 5.165cm 5.0cm 16. In order to remove the error of parallax when taking measurements with a meter rule, the eye should be focused Slantingly towards the left on the markings Vertically upwards on the markings Slantingly towards the right on the markings Vertically downwards on the markings 17. Which of the following set of physical quantities are vectors? Energy & Power Capacitance & Inductance Electric field potential & Electric field intensity Force ratio & Velocity ratio Friction & Momentum 18. 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, III & IV Only I & III Only I, II & III Only I & II Only 19. Which of the following pairs of units do not agree in dimension? Meters & light years Candela & microwatts Moles & coulombs Meters & feet 20. In 3D space, we can define the magnitude of a vector in terms of right ascension & declination the location of the coordinate origin celestial latitude & longitude the length of the line segment representing it 21. 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 & direction speed & direction mass & displacement mass & speed 22. Amanda walks 1km due east and then 1km due north, her displacement is 1km N30°E √2 km N45°E 2km N75°E 1km N15°E √2 km N60°E 23. What's the Kelvin equivalent of the lowest possible temperature? Nothing, because there's no limit to how cold things can get 0 K -273.15 K -459.15 K 24. Which of the following is not a fundamental S.I unit? Ampere Kelvin Radian Second Meter 25. The dimensions of viscosity are I. ML-1T-1 II. M2L-1T-1 III. M-1L-1T-1 IV. MLT-1 II I IV III 1 out of 25 Time is Up! Time's up