DBS10042 : ENGINEERING SCIENCE

Key Areas of Engineering Science
1. Data and Measurements
The study of measuring physical quantities such as length, mass, time, and temperature.

Uses precise tools like Vernier calipers, micrometers, and rulers to ensure accuracy.

Understanding measurement errors and units of measurement (SI system) is crucial for engineering calculations.

2. Linear Motion
Describes the movement of objects in a straight line.

Governed by equations of motion:

Velocity (v) = Displacement / Time

Acceleration (a) = Change in Velocity / Time

Newton’s Laws of Motion explain how forces influence motion.

3. Force
A push or pull that causes an object to move, stop, or change direction.

Measured in Newtons (N) and follows Newton’s Second Law:

𝐹
=
𝑚
𝑎
F=ma (Force = Mass × Acceleration)

Types of forces: Gravitational, Frictional, Normal, and Applied Forces.

4. Work, Power & Energy
Work (W): Energy transferred when a force moves an object:

𝑊
=
𝐹
×
𝑑
W=F×d (Work = Force × Distance)

Power (P): The rate at which work is done:

𝑃
=
𝑊
𝑡
P=
t
W
​
(Power = Work / Time)

Energy: The capacity to do work, divided into Kinetic Energy (KE) and Potential Energy (PE).

5. Solid and Fluid Mechanics
Solid Mechanics: Study of how solid materials deform under forces.

Fluid Mechanics: Study of how liquids and gases behave in motion.

Bernoulli’s Principle explains how pressure and velocity relate in fluids.

Applications: Bridges, pipelines, hydraulic systems, aerodynamics.

6. Temperature and Heat
Temperature: Measures how hot or cold an object is (Kelvin, Celsius).

Heat: The transfer of thermal energy between objects.

Heat transfer methods:

Conduction (through solids),

Convection (through fluids),

Radiation (without a medium).

Specific Heat Capacity formula:

𝑄
=
𝑚
𝑐
Δ
𝑇
Q=mcΔT (Heat = Mass × Specific Heat × Temperature Change)