Learning Objectives
Upon successful completion of this module, you will be able to:
1) Discuss the properties of a system, including density, specific gravity, and specific weight, and calculate these properties for a given system,
2) Understand the concept of pressure and distinguish the difference between absolute and gauge pressure,
3) Know the difference between scalars and vectors, and how to add and subtract vectors,
4) Understand the components of a vector and use them in calculations,
5) Define the unit vectors and use them with components to describe vectors,
6) Determine the location of the geometric center of simple-shaped bodies and their combinations, known as composite bodies,
7) Define the area moments of inertia,
9) Understand the concept of the parallel-axis theorem and use it to calculate the moment of inertia for composite areas.
Videos
Title: Properties of a System
Summary: This video discusses the definition and classification of thermodynamic properties, highlighting the differences between intensive and extensive properties, introducing specific properties, and explaining concepts like specific volume, density, and specific gravity.
Learning Objectives: After watching this video, you will be able to define the properties of a thermodynamic system, distinguish between intensive and extensive properties, explain the concept of specific properties, and calculate them from corresponding extensive properties.
Transcript: Read the transcript
Title: Density
Summary: This video discusses the definition and units of density, as well as variable vs. constant density for gases and liquids.
Learning Objectives: After watching this video, you will be able to explain the concept of density, identify its units in SI and English systems, and describe how it varies for liquids and gases.
Transcript: Read the transcript
Title: Specific Weight
Summary: This video discusses the definition of specific weight, its units in different unit systems, and why it is commonly used in fluid mechanics.
Learning Objectives: After watching this video, you will be able to explain the concept of specific weight, identify its units in both SI and British gravitational systems, and discuss its practical significance in fluid mechanics.
Transcript: Read the transcript
Title: Specific Gravity
Summary: This video discusses the definition of specific gravity and emphasizes its unitless nature and practical use.
Learning Objectives: After watching this video, you will be able to define specific gravity, recognize that it is unitless, and explain how it simplifies dealing with substances, such as those with high density.
Transcript: Read the transcript
Title: Pressure
Summary: These videos discuss pressure, including its units in SI and BG systems. They also cover the concepts of absolute pressure (relative to vacuum), gage pressure (which is measured relative to atmospheric pressure), and vacuum pressure, and explain how pressure varies with depth for gases and liquids.
Learning Objectives: After watching these videos, you will be able to define and calculate pressure using the normal force component, explain the differences between absolute, gage, and vacuum pressure, identify the appropriate pressure units in different systems, and determine the variation of pressure with depth in fluids.
Transcript: Read the transcript
Transcript: Read the transcript
Title: Absolute and Gage Pressure
Summary: This video discusses the definition of absolute and gage pressure terminologies.
Learning Objectives: After watching this video, you will be able to distinguish the difference between absolute and gage pressure and explain their relationship using the appropriate equation.
Transcript: Read the transcript
Title: Scalar vs Vector
Summary: This video discusses the fundamental difference between scalar and vector.
Learning Objectives: After watching this video, you will be able to distinguish between scalars and vectors by considering whether or not they have direction.
Transcript: Read the transcript
Title: Magnitude of a Vector
Summary: This video shows you how to find the magnitude of a force given the components.
Learning Objectives: After watching this video, you will be able to calculate the magnitude of a vector using its x, y, and z components.
Transcript: Read the transcript
Title: Direction of a Vector
Summary: This video shows you how to determine the direction of a vector, including the angle.
Learning Objectives: After watching this video, you will be able to calculate the direction of a vector by using trigonometric relationships between its components.
Transcript: Read the transcript
Title: Components of a Vector and Unit Vectors (i, j, k)
Summary: This video discusses the components of a vector and introduces unit vectors in the x, y, and z directions: i, j, and k.
Learning Objectives: After watching this video, you will be able to represent a vector using its components along the x, y, and z directions with unit vectors i, j, and k, and identify the appropriate signs based on directional orientation.
Transcript: Read the transcript
Title: Center of Pressure on Submerged Plates: Centroid and Second Moment of Area
Summary: This video revisits the Statics concepts of centroid and second moment of area and shows how they are applied to locate the center of pressure on submerged surfaces.
Learning Objectives: After watching this video, you will refresh your pre-requisite knowledge of centroid and second moment of area concepts from Statics.
Transcript: Read the transcript