General Practical Physics I — integral Past Questions

University of Ilorin PHY107: 20 questions.

Topics: Measurement of length, Graphical methods, Viscosity, The simple Pendulum, Hooke's law (Static), Thermal physics, Hooke's law (Dynamic), Specific heat capacity of a liquid (Cooling method)

1. How many divisions on the vernier scale are equal to one division on the main scale of a vernier caliper?
   1. 9
   2. 1
   3. 10
   4. 0
2. The closeness of a set of values is called:
   1. Accuracy
   2. Precision
   3. Concise
   4. Real
3. Experimental readings are repeated in order to avoid:
   1. Zero error
   2. Systematic error
   3. Environment error
   4. Random error
4. If a student measures the speed to be $2.97 \\times 10^8$ m/s and the actual value is $3.0 \\times 10^8$ m/s, what is the percentage error?
   1. 1%
   2. 0.1%
   3. 0.01%
   4. 0.001%
5. The meter rule has a reading accuracy of:
   1. 0.1 cm
   2. 0.001 cm
   3. 0.5 cm
   4. 0.05 cm
6. What is the slope of $T = 2\\pi \\sqrt{\\frac{l}{g}}$ when plotted as $T^2$ vs. $l$?
   1. $\\frac{4\\pi}{g}$
   2. $\\frac{4}{g}$
   3. $\\frac{4\\pi^2}{g}$
   4. $\\frac{4\\pi}{12}$
7. What is the intercept in the equation $Q = a b^p$ when linearized?
   1. a
   2. Log p
   3. Log $a^2$
   4. Log a
8. Which statement regarding a simple pendulum is correct?
   1. It is independent of the nature of the bob
   2. Its period increases as its length decreases
   3. Its period doubles as length doubles
   4. Its period is zero when the length of the spring is very long
9. What is parallax?
   1. The apparent relative movement of two observers owing to a movement on the part of the object
   2. The apparent relative movement of two objects owing to a movement on the part of the observer
   3. The apparent relative movement of an object owing to a movement on the part of two observers
   4. None of the above
10. The slope of $T^2$ against $m$ in the equation $T = 2\\pi \\sqrt{\\frac{m}{k}}$ is 0.5. What is $k$?
    1. $0.8\\pi^2$
    2. $8\\pi^2$
    3. $80\\pi^2$
    4. $800\\pi^2$
11. The lid of a calorimeter reduces heat loss by:
    1. Convection
    2. Radiation
    3. Conduction
    4. None
12. The purpose of dropping different masses in a liquid is to:
    1. Determine the terminal velocity
    2. Show the relationship between different masses and liquid
    3. Determine the coefficient of viscosity
    4. Determine the density of the liquid
13. What instrument is suitable for measuring the distance between two parallel lines?
    1. Vernier caliper
    2. Travelling microscope
    3. Micrometer screw gauge
    4. None of the above
14. The force constant for a spring is called:
    1. String constant
    2. Spring constant
    3. Young modulus
    4. All of the above
15. Which correctly describes the slope in an experiment to determine the coefficient of viscosity?
    1. $\\frac{9d}{2g(\\rho - \\sigma)}$
    2. $\\frac{9d\\eta}{2g(\\rho - \\sigma)}$
    3. $\\frac{9}{2g(\\rho - \\sigma)}$
    4. $\\frac{9d\\eta}{g(\\rho - \\sigma)}$
16. What is the slope of $Q^m = ap^n$?
    1. n/m
    2. 1/m
    3. 1/n
    4. m/n
17. 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
18. The forces acting on a body falling through a column of viscous liquid are: I. Surface tension II. Viscosity III. Weight IV. Centrifugal force V. Upthrust
    1. All
    2. II, III, IV
    3. I, II, IV
    4. II, III, V
19. When determining the coefficient of viscosity of glycerol, balls of different sizes are allowed to fall through it. What is the purpose of this?
    1. It is a waste of time
    2. Different balls have different speed
    3. Different balls have different terminal speeds
    4. To find the relationship between terminal velocity and size
20. The change of phase from solid to gas when heat is applied is called
    1. Convection
    2. Ionization
    3. Sublimation
    4. Radiation

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