The Official Phy103 Practice Test

40 Questions | By Www.kolaworley94 | Updated: Jul 11, 2022 | Attempts: 808

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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