General Practical Physics I — elclassico Past Questions

University of Ilorin PHY107: 31 questions.

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

1. The error of not turning the anvil very tightly in a micrometer screw gauge is what?
   1. Random error
   2. Erratic error
   3. Zero error
   4. Systematic error
2. For the equation $T = KW^\\alpha$, what is the slope of $\\log T$ vs $\\log W$?
   1. $\\log K$
   2. $\\alpha$
   3. $\\log T$
   4. None of the above
3. For the equation $T = 2\\pi\\sqrt{\\frac{l}{g}}$, if $T$ is plotted against $l$, what is the intercept?
   1. 0
   2. $2\\pi$
   3. $4\\pi^2$
   4. None of the above
4. The change of liquid to vapour when heat is applied is called?
   1. Sublimation
   2. Condensation
   3. Evaporation
   4. Freezing
5. Viscosity is:
   1. The laminar or turbulent flow of liquid
   2. Frictional force in a liquid
   3. A measure of a fluid's resistance to flow
   4. All of the above
6. In the equation $Y = KX^\\alpha$, the parameter $K$ represents:
   1. Slope
   2. Intercept
   3. Power law constant
   4. None of the above
7. The copper lid in the calorimeter stops heat by:
   1. Conduction
   2. Convection
   3. Radiation
   4. All of the above
8. The aim of the viscosity experiment is to:
   1. Measure the viscosity of a liquid
   2. Study laminar flow
   3. Verify Stokes' law
   4. All of the above
9. For the relationship $l_e = \\lambda T^n$, what is the linearized form?
   1. $\\ln l_e = \\ln \\lambda + n \\ln T$
   2. $l_e = \\lambda + n + T$
   3. $\\ln l_e = \\ln \\lambda + \\ln T$
   4. $\\ln l_e = \\ln \\lambda + \\ln n + \\ln T$
10. If $n = 20$ oscillations take $t = 34\\,s$, what is the period $T$?
    1. 1.7 s
    2. 0.59 s
    3. 0.017 s
    4. None of the above
11. Decrease in amplitude of an oscillation is called:
    1. Damping
    2. Frequency
    3. Resonance
    4. All of the above
12. Hooke’s law still holds for a spring whose:
    1. Elastic limit has been exceeded
    2. Elastic limit has not been exceeded
    3. It is stretched beyond its length
    4. None of the above
13. For the equation $T = KW^\\alpha$, what is the linearized form?
    1. $\\log T = \\log K + \\alpha \\log W$
    2. $T = K + \\alpha W$
    3. $\\ln T = \\ln K + W^\\alpha$
    4. None of the above
14. In the equation $M = K + eV$, $K$ represents:
    1. Slope
    2. Intercept
    3. Variable
    4. None of the above
15. Which instrument is used to measure the diameter of a ball bearing?
    1. Micrometer screw gauge
    2. Travelling microscope
    3. Vernier caliper
    4. Meter rule
16. A graph plot is used to determine what?
    1. Relationships between variables
    2. Slopes and intercepts
    3. Experimental constants
    4. All of the above
17. Values that are close to the true value are said to be:
    1. Accurate
    2. Precise
    3. Concise
    4. Real
18. Which of the following does not require a material?
    1. Conduction
    2. Convection
    3. Radiation
    4. Propagation
19. The change of phase from solid to gas when heat is applied is called?
    1. Convection
    2. Ionization
    3. Sublimation
    4. Radiation
20. For the equation T = 2π√(l/g), what is the slope if T² is plotted against l?
    1. 0
    2. 2π
    3. 4π²
    4. None of the above
21. If the relationship for a simple pendulum is T = 2π√(l/g), what is its linearized form?
    1. T = (2π/√g)l
    2. T² = (4π²/g)l
    3. log T = log(2π) + ½log(l/g)
    4. None of the above
22. If PV^(λ-1) = k, what will be plotted on the graph?
    1. P vs V
    2. log P vs log V
    3. P vs 1/V
    4. None of the above
23. For the relationship Q = aPⁿ, how would you calculate the value of n?
    1. Slope of Q vs P graph
    2. Slope of log Q vs log P graph
    3. Intercept of Q vs P graph
    4. Intercept of log Q vs log P graph
24. The bore of a thermometer is measured using:
    1. Vernier caliper
    2. Micrometer screw gauge
    3. Travelling microscope
    4. Meter rule
25. For the equation Qᵐ = aPⁿ, what will be the slope of the graph?
    1. n
    2. m
    3. n/m
    4. m/n
26. Spring's constant is also known as:
    1. Stiffness
    2. Elastic constant
    3. Force per unit length
    4. All of the above
27. When spring constant is increased, what is the effect?
    1. It takes longer time for one oscillation
    2. It takes shorter time for one oscillation
    3. Amplitude increases
    4. Amplitude decreases
28. If a graph of T is plotted against l for a simple pendulum, what is the slope?
    1. 0
    2. 2π
    3. 4π²
    4. None of the above
29. In Hooke's law, which constant is used?
    1. Spring constant
    2. Hooke's constant
    3. String constant
    4. Elastic modulus
30. In the equation y = mx + c, which of these is correct?
    1. y is a variable on the y-axis
    2. y is a constant
    3. y is a variable on the x-axis
    4. None of the above
31. In the equation y = mx + c, which of these is correct?
    1. x is a variable on the y-axis
    2. x is a constant
    3. x is a variable on the x-axis
    4. None of the above

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