The Official Phy103 Practice Test

40 Questions | Total Attempts: 207

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The Official Phy103 Practice Test - Quiz

This test was set up by Oyewole Kolawole David Of Mechatronics Engineering department, Fuoye, to help the 100L students prepare for their Physics Exam


Questions and Answers
  • 1. 
    The pressure at any given point of a non-moving fluid is called the ____________
    • A. 

      Guage Pressure 

    • B. 

      Atmospheric Pressure 

    • C. 

      Differential Pressure 

    • D. 

      Hydrostatic Pressure 

  • 2. 
    _________ is the evidence that matter is made up of atoms and particles that are in constant vibration 
    • A. 

      Brownian motion

    • B. 

      Accelerated motion

    • C. 

      Bernuolli principle

    • D. 

      Special relativity

  • 3. 
    Mercury melts at ________
    • A. 

      0° - 4°C

    • B. 

      404°C

    • C. 

      -38.829°C

    • D. 

      112°C

  • 4. 
    Bulk Modulus, Pressure, Force, Stress – Which one of these won’t have the same unit as the others?
    • A. 

      Bulk Modulus 

    • B. 

      Pressure

    • C. 

      Force

    • D. 

      Stress

  • 5. 
    Which of the following is true?
    • A. 

      Flow is laminar inside the boundary layer and turbulent outside

    • B. 

      Flow is turbulent inside the boundary layer and laminar outside

    • C. 

      Flow is laminar both inside and outside of the boundary layer

    • D. 

      Flow is turbulent both inside and outside of the boundary layer

  • 6. 
    The SI unit of Surface tension is ______
    • A. 

      Nm

    • B. 

      N/m

    • C. 

      Kg/cm

    • D. 

      Pa

  • 7. 
    __________ is a pointer for the direction of energy transfer. 
    • A. 

      Thermodynamics 

    • B. 

      Weight

    • C. 

      Temperature 

    • D. 

      Thermocouple

  • 8. 
    Which thermometer adopts pressure as its thermometric property? 
    • A. 

      Alcohol in gas Thermometer 

    • B. 

      Electric Resistance

    • C. 

      Thermocouple 

    • D. 

      Constant volume gas thermometer 

  • 9. 
    Which of the following is not a scale used in measuring temperature? 
    • A. 

      Centigrade 

    • B. 

      Fahrenheit 

    • C. 

      Temperature 

    • D. 

      None of the above

  • 10. 
    The scale of 212°F in °C is ___
    • A. 

      89°C

    • B. 

      100°C

    • C. 

      88°C

    • D. 

      68.90°C

  • 11. 
    Water strider can walk walk on water because 
    • A. 

      It's weight is not enough to penetrate the surface 

    • B. 

      The Viscosity of the water is High

    • C. 

      The surface tension of water strider is High

    • D. 

      It is not true, 

  • 12. 
    In the Zeroth law of thermodynamics, the third body stand for the 
    • A. 

      Thermocouple 

    • B. 

      Thermodynamics 

    • C. 

      Thermostatic body

    • D. 

      Thermometer 

  • 13. 
    _______ is the part of the universe, we choose to study 
    • A. 

      Isolated System

    • B. 

      Thermodynamic cycle

    • C. 

      System

    • D. 

      Surrounding 

  • 14. 
    For an isolated system 
    • A. 

      Neither the mass nor energy can transfer between the system and the surrounding 

    • B. 

      The Thermometer is always stagnant

    • C. 

      There is no acceleration 

    • D. 

      Entropy

  • 15. 
    Which of the laws of thermodynamics defines entropy 
    • A. 

      Zeroth 

    • B. 

      First

    • C. 

      Second

    • D. 

      Third 

  • 16. 
    First law of thermodynamics deals with
    • A. 

      Conservation of mass

    • B. 

      Conservation of momentum 

    • C. 

      Conservation of energy 

    • D. 

      Conservation of pressure 

  • 17. 
    The equation for the average kinetic energy is_________
    • A. 

      0.5KT

    • B. 

      1.5KT

    • C. 

      3.5KT

    • D. 

      3.2KT

  • 18. 
    What is the dimension of strain
    • A. 

      L x L

    • B. 

      It's dimensionless

    • C. 

      M X L X T

    • D. 

      M/L

  • 19. 
    An object has a mass of 10kg and a length of 4m, given that the cross-sectional area of the object is 32.5m^2, Now calculate the density of the object
    • A. 

      0.77kg/m^3

    • B. 

      0.077kg/m^3

    • C. 

      7.077kg/m^3

    • D. 

      0.0077kg/m^3

  • 20. 
    A body weighs 0.3N in air, 0.25N when fully immersed in water and 0.27N when fully immersed in a liquid. Calculate its loss of weight in water
    • A. 

      0.05N

    • B. 

      0.003N

    • C. 

      0.6N

    • D. 

      1.3N

  • 21. 
    A hydraulic press contains 0.25m^3 of oil find the decrease in the volume of the oil when it's subjected to a pressure increase (P' - P) = 1.6 x  10 ^7 Pa. The bulk Modulus of the oil is 5.0GigaPa
    • A. 

      0.6796

    • B. 

      0.0008

    • C. 

      0.00008

    • D. 

      0.008

  • 22. 
    A uniform cylindrical wooden block floats in water with 1/3 of its height above the water level. In a liquid of a relative density 0.8, what fraction of its height will be above the liquid 
    • A. 

      1/6v

    • B. 

      1/7v

    • C. 

      1/4v

    • D. 

      1/3v

  • 23. 
    When a leaf floats on the surface of water, its able to float because of the force on the surface of the water, and this force is called 
    • A. 

      Young modulus

    • B. 

      Density

    • C. 

      Viscosity 

    • D. 

      Surface Tension

  • 24. 
    Which among the following is an assumption of Hagen-Poiseuille equation?
    • A. 

      Fluid is compressible

    • B. 

      Fluid is uniform

    • C. 

      Fluid is laminar

    • D. 

      Fluid is turbulent 

  • 25. 
    Which of the following affects surface tension
    • A. 

      Thermodynamics 

    • B. 

      Type of force

    • C. 

      Impurity

    • D. 

      Pressure 

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