General Practical Physics I — practice1 Past Questions

University of Ilorin PHY107: 46 questions.

Topics: Measurement of length, Graphical methods, Viscosity, The simple Pendulum, Hooke's law (Static), Surface tension, Specific heat capacity of a liquid, Specific heat capacity of a good conductor

  1. The inner diameter of a test tube can be measured accurately using
    1. A micrometer screw gauge
    2. A pair of dividers
    3. Meter rule
    4. Pair of vernier calipers
  2. A micrometer screw gauge can be used to measure (i) Thickness of the central portion of a thin converging lens (ii) Diameter of a wire (iii) Expansion of a heated rod (iv) Thickness of a flat sheet of iron
    1. I and ii
    2. I, ii, iii only
    3. Ii and iv only
    4. I, ii, iii, iv
  3. The volume of a stone having irregular shape can be determined using
    1. Measuring cylinder
    2. Burette
    3. Vernier caliper
    4. Micrometer screw gauge
  4. What is the least possible error in using a meter rule graduated in centimeters?
    1. 0.5cm
    2. 0.05cm
    3. 0.01cm
    4. 0.005cm
  5. Which of the following apparatus may be used to measure the internal diameter of a hollow tube?
    1. Metre rule
    2. Vernier caliper
    3. Micrometer screw gauge
    4. Traveling microscope
  6. Which instrument is most accurate for measuring the diameters of different objects?
    1. Micrometer screw gauge
    2. Traveling microscope
    3. Vernier caliper
    4. Meter rule
  7. Which apparatus is best for measuring the thickness of a 50k Nigerian banknote?
    1. Meter rule
    2. Vernier caliper
    3. Micrometer screw gauge
    4. None of these
  8. A set of readings close to the 'true value' is said to be
    1. Accurate
    2. Precise
    3. Concise
    4. Real
  9. The dimension of a minute smear of ink on paper may be measured with
    1. Micrometer screw gauge
    2. Traveling microscope
    3. Meter rule
    4. Vernier caliper
  10. Which is not a precaution in length measurement experiments?
    1. Avoid parallax error
    2. Close window to avoid air current
    3. Avoid zero errors
    4. Repeat measurements
  11. The thickness of a capillary tube is best measured with
    1. Micrometer screw gauge
    2. Traveling microscope
    3. Vernier caliper
    4. Callipers
  12. Best instrument for measuring a metal rod's diameter?
    1. Micrometer screw gauge
    2. Vernier caliper
    3. Meter rule
    4. Traveling microscope
  13. Error when vernier caliper jaws are not closed tightly?
    1. Systematic error
    2. Zero error
    3. Parallax error
    4. Random error
  14. One division on a micrometer screw gauge equals
    1. 0.01cm
    2. 0.1cm
    3. 0.001cm
    4. 0.0001cm
  15. A set of measurements is accurate if its systematic error is
    1. Large
    2. Zero
    3. Small
    4. Infinite
  16. A substance of mass 0.4kg with density 2700kg/m³ occupies area 0.02m². Its thickness is
    1. 0.074m
    2. 0.74m
    3. 0.0074m
    4. 7.4m
  17. How many vernier scale divisions correspond to one main scale division in vernier calipers?
    1. 1
    2. 9
    3. 10
    4. 0
  18. Precaution for meter rule usage is
    1. Avoid parallax by looking vertically downward
    2. Avoid parallax by looking vertically upward
    3. Avoid parallax by looking horizontally downward
    4. Avoid parallax by looking horizontally upward
  19. Which graph is most important in physics?
    1. Straight line graph
    2. Curve line graph
    3. Sketch line graph
    4. None of these
  20. In Q=AP+b+p², the intercept is
    1. 3logp
    2. Log(a+b)
    3. 3
    4. Logp
  21. From Q=AP+b+p², the gradient is
    1. 3
    2. Log(a+b)
    3. 3logp
    4. Logp
  22. What does a simple pendulum experiment determine?
    1. Acceleration due to gravity
    2. The mass
    3. Distance
    4. Ideal
  23. Error due to atmospheric conditions is
    1. Erratic error
    2. Indeterminate
    3. Random
    4. Random/indeterminate
  24. An instrument where non-coinciding scales indicate a zero error is
    1. Micrometer screw gauge
    2. Vernier caliper
    3. Meter rule
    4. Tape rule
  25. Hooke’s law holds for a spring whose
    1. Elastic limit has been exceeded
    2. Proportional limit has been reached
    3. Elastic limit has not been exceeded
    4. All of the above
  26. When determining the coefficient of viscosity of glycerol, balls of different sizes are used to
    1. Find the relationship between terminal velocity and ball size
    2. It is a waste of time
    3. Different balls have different speeds
    4. Different balls have different terminal speeds
  27. Which set of instruments is used to determine the coefficient of viscosity?
    1. Stopwatch, vernier caliper, measuring cylinder with glycerol
    2. Stopwatch, vernier caliper, glycerol
    3. Stopwatch, micrometer screw gauge, measuring cylinder with glycerol, steel balls
    4. Stopwatch, micrometer screw gauge, glycerol
  28. Heat loss by radiation in a calorimeter is minimized by
    1. Cork stopper
    2. Vacuum between walls
    3. Silvered surface
    4. Cork support
  29. In thermometer construction, the bore diameter is measured using
    1. Meter rule
    2. Vernier calipers
    3. Micrometer screw gauge
    4. Vernier microscope
  30. Formula for the period of a simple pendulum is
    1. T=1/2π√gl
    2. T=π√l/g
    3. T=2π√l/g
    4. T=2√πl/g
  31. Plotting L against T² in a pendulum experiment gives a slope of
    1. g/4π
    2. g/π²
    3. π²/4g
    4. g/4π²
  32. Apparent relative movement of objects due to observer's motion is called
    1. Parallax
    2. Erratic
    3. Systematic
    4. Random
  33. A measure of a fluid's resistance to flow is
    1. Viscosity
    2. Capillary tube
    3. Surface tension
    4. None
  34. In viscosity experiment, plotting a² against 1/t gives a slope of
    1. 9πd/2g(ρ-σ)
    2. 9πd/2g(ρ+σ)
    3. 9πd/2ρ(g-σ)
    4. πd/2g(ρ-σ)
  35. ---------is the ability of a liquid to rise or fall in a narrow tube
    1. Capillarity
    2. Viscosity
    3. Surface tension
    4. None
  36. It is not possible to verify Hooke’s law for a spring if the
    1. Elastic constant of the spring is infinitely large
    2. Load applied extends the spring beyond elastic limit
    3. All of the options are correct
    4. Spring is inelastic
  37. What are the apparatus used for an experiment to determine the spring constant? (i) Retort stand (ii) Spring (iii) Ball bearing (iv) Meter rule (v) Mass (vi) Stop watch
    1. i, iii, iv and vi
    2. i, ii, iv, v and vi
    3. i, ii, iii, iv, v and vi
    4. i, ii, iii, iv and vi
  38. In a simple pendulum experiment, the measured time for 40 oscillations is 68s. The period T is
    1. 2780s
    2. 108s
    3. 1.7s
    4. 0.6s
  39. For the equation T = KW^d, linearizing gives a graph slope of
    1. D
    2. Logk
    3. Logw
    4. Logt
  40. For the equation M = K + PV, plotting M against V gives K as the
    1. Intercept
    2. None
    3. X axis
    4. Slope
  41. Which heat transfer method does not require a material medium?
    1. Radiation
    2. Conduction
    3. Convection
    4. None
  42. Increase in viscosity causes
    1. Decrease in terminal speed
    2. Decrease in speed
    3. Increase in speed
    4. None
  43. Before any measurements are made, the anvil and spindle should be closed to avoid zero error in
    1. Meter rule
    2. Vernier caliper
    3. Micrometer screw gauge
    4. Slide rule
  44. The SI unit of surface tension is
    1. Nm²s⁻²
    2. N
    3. kgm²
    4. Nm⁻¹
  45. In a simple pendulum experiment, the calculation of period is
    1. T = n/5
    2. T = t/n
    3. T = n/t
    4. T = t
  46. If two variables X and Y give a straight-line plot, the equation is
    1. Y = C
    2. Y = MC - X
    3. Y = MX + C
    4. Y = M/C + X

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