Podcast
Questions and Answers
Which of the following is NOT a base quantity in the SI system?
Which of the following is NOT a base quantity in the SI system?
- Temperature
- Length
- Pressure (correct)
- Mass
A derived unit can be expressed solely in terms of base units.
A derived unit can be expressed solely in terms of base units.
True (A)
What is the SI base unit for electric current?
What is the SI base unit for electric current?
Ampere
The formula for scientific notation is: Number = __________ × 10^Exponent.
The formula for scientific notation is: Number = __________ × 10^Exponent.
How many significant figures are in the number 0.00456?
How many significant figures are in the number 0.00456?
In scientific notation, the exponent indicates the number of decimal places that the decimal point moves.
In scientific notation, the exponent indicates the number of decimal places that the decimal point moves.
What is the significance of zeros between non-zero digits in significant figures?
What is the significance of zeros between non-zero digits in significant figures?
Match the following SI base units with their corresponding base quantities:
Match the following SI base units with their corresponding base quantities:
How many significant figures does the number 1.200 have?
How many significant figures does the number 1.200 have?
Systematic errors always lead to inaccurate measurements regardless of the instrument used.
Systematic errors always lead to inaccurate measurements regardless of the instrument used.
What is the primary purpose of dimensional analysis?
What is the primary purpose of dimensional analysis?
The smallest value that can be measured by a measuring instrument is known as the ______.
The smallest value that can be measured by a measuring instrument is known as the ______.
Match the following components with their descriptions:
Match the following components with their descriptions:
In a calculation involving multiplication, how should the result be formatted?
In a calculation involving multiplication, how should the result be formatted?
Instrumental errors are always predictable.
Instrumental errors are always predictable.
What type of error is associated with the resolution of a measuring instrument?
What type of error is associated with the resolution of a measuring instrument?
Flashcards
Physical Quantity
Physical Quantity
A measurable quantity that can be expressed numerically.
System of Units
System of Units
A set of units for all physical quantities.
Base Quantities
Base Quantities
Fundamental quantities used to define all other quantities.
Base Units
Base Units
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Derived Quantities
Derived Quantities
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Derived Units
Derived Units
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Scientific Notation
Scientific Notation
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Significant Figures
Significant Figures
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Error in Measurement
Error in Measurement
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Systematic Errors
Systematic Errors
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Instrumental Errors
Instrumental Errors
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Personal Errors
Personal Errors
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Random Errors
Random Errors
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Least Count
Least Count
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Least Count Error
Least Count Error
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Uncertainty
Uncertainty
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Study Notes
Fluid Dynamics
- A fluid is a substance that can flow
- Fluids include liquids, gases, plasmas, and some solids
- Viscosity is the resistance a fluid has to flow. Higher viscosity means greater resistance
- Viscosity depends on temperature and intermolecular forces
- Fluid friction is the resistance between adjacent layers of a fluid
- Drag force is a retarding force on an object moving through a fluid
- Terminal velocity is the constant maximum speed of an object falling through a fluid. This occurs when the drag force equals weight
- Streamline flow, steady flow, or laminar flow occurs when each fluid particle follows the identical path as previously passed particles
- Turbulent flow has whirlpool-like regions, it is not smooth
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Description
Test your understanding of fluid dynamics concepts such as viscosity, drag force, and flow types. This quiz covers essential principles like streamline and turbulent flow, along with key definitions related to fluids. Challenge yourself and enhance your knowledge in this fascinating area of physics.
