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?JouleWattNewtonAmpere2. We can express gravitational acceleration inkilograms per meterkilograms per poundmetersmeters per second squared3. The thickness of the central portion of a thin converging lens can be determined very accurately by using?A microscopeVernier calliperA micrometer screw gaugeA telescope4. 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?0.5m/s5.0m/s0.1m/s0.02m/s50m/s5. The diagram below shows two vectors at right angles to each other. The value of the resultant vector is11.0N12.0N10.0N14.0N6. 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 & II OnlyI & III OnlyI, III & IV OnlyI, II & III Only7. At what respective values of x, y and z would the unit of force, the Newton, be dimensionally equivalent to MxLyTz -1, 1, -2-1, 1, 21, -1, 21, 1, -28. Which of the following quantities are scalar?I. Electric potentialII. TorqueIII. MomentumIV. Kinetic EnergyI & IVI & IIII & IIIIII & IV9. One of the following readings represent the measurement of the length of a metal rod using vernier callipers.5cm5.160cm5.165cm5.0cm5.16cm10. The dimensions of viscosity areI. ML-1T-1II. M2L-1T-1III. M-1L-1T-1IV. MLT-1IIVIIIII11. An example of scalar quantity iselectric chargeweightmomentumvelocityacceleration due to gravity12. A bird flying due north with a velocity of 15m/s sheds a feather in an air current blowing at 20m/s due east. The feather will move with a velocity of20m/s east25m/s east of north25m/s east of south15m/s north25m/s west of south13. For which of the underlisted quantities is the derived unit ML2T-2 correct?I. Moment of a forceII. WorkIII. AccelerationI & IIII OnlyII & IIII Only14. When we talk about steradians, we talk aboutvolumegravitational accelerationsurface areaSolid angular measure15. Which of the following is not a fundamental S.I unit?KelvinRadianAmpereSecondMeter16. 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 IIII and IVI, II and IIIIII and IVII and III17. 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?multiply the total collected energy in joules by the square of the speed of light in meters per seconddivide the square of the speed of light in meters per second by the total collected energy in joulesdivide speed of light in meters per second by the total collected energy in jouleswe can'tdivide the total collected energy in joules by the square of the speed of light in meters per second18. 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?1.50m/s1.00m/s0.86m/s0.65m/s19. Which of the following represents the correct precision if the length of a piece of wire is measured with a meter rule?35.00mm35.01mm35mm35.0mm20. The diagram below represents a portion of vernier calliper. What is its reading?6.28cm6.90cm6.34cm7.10cm7.09cm21. 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/s108m/s72m/s60m/s22. The fundamental SI of material quantity is thejoulepoundkilogramnewtonmole23. 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.30km13km7km4km17km24. 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.2.00m/s²0.83m/s²0.67m/s²1.50m/s²25. What would happen if the earth suddenly stopped moving in its orbit around the sun, but nothing else changed?The earth would fall into the sunThe earth would remain fixed at the spotThe earth would fly out of solar orbitNobody knows26 out of 25Time is Up!
