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NST1502 Assignment 4 PORTFOLIO (COMPLETE ANSWERS) 2024 - DUE 8 October 2024
NST1502 Assignment 4 PORTFOLIO (COMPLETE ANSWERS) 2024 - DUE 8 October 2024
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,NST1502 Assignment 4 PORTFOLIO (COMPLETEANSWERS) 2024 - DUE 8 October 2024 ; 100%
TRUSTED Complete, trusted solutions and
explanations.
QUESTION 1 Energy Basics [18 marks] 1.1 Define and explain
the different forms of energy, providing real-world examples for
each. (Focus on the following forms of energy; Kinetic energy;
potential energy; thermal energy; chemical energy; electrical
energy, light energy, and sound energy). (14) 1.2 Discuss the
concept of energy transformation, giving examples of how one
form of energy can be converted into another. (4)
1.1 Forms of Energy
Kinetic Energy:
Definition: Kinetic energy is the energy possessed by an
object due to its motion.
Example: A moving car has kinetic energy.
Potential Energy:
Definition: Potential energy is the energy stored in an
object due to its position or configuration.
Example: A stretched rubber band has potential energy.
Thermal Energy:
Definition: Thermal energy is the internal energy present
in a system due to the kinetic energy of its atoms and
molecules.
, Example: Heat from a hot stove represents thermal
energy.
Chemical Energy:
Definition: Chemical energy is the energy stored in the
bonds of chemical compounds.
Example: Gasoline contains chemical energy that is
released during combustion.
Electrical Energy:
Definition: Electrical energy is the energy carried by
electric currents.
Example: Electricity powering a light bulb is electrical
energy.
Light Energy:
Definition: Light energy is electromagnetic radiation that
can be detected by the human eye.
Example: Sunlight provides light energy.
Sound Energy:
Definition: Sound energy is produced when an object
vibrates, creating waves of pressure that travel through a
medium.
Example: A ringing bell produces sound energy.
1.2 Energy Transformation
, Energy transformation involves changing one form of energy
into another. Here are some examples:
Electrical to Light Energy: When you switch on a light bulb,
electrical energy is converted into light energy.
Chemical to Thermal Energy: Burning wood converts
chemical energy stored in the wood into thermal energy
(heat) and light energy.
Potential to Kinetic Energy: When you drop a ball, its
potential energy due to height is converted into kinetic
energy as it falls.
Electrical to Sound Energy: A speaker converts electrical
energy into sound energy.
These transformations illustrate how energy can change forms
depending on the system and processes involved,
demonstrating the principle of conservation of energy where
energy cannot be created or destroyed, only converted from
one form to another.
1.1 Forms of Energy
Kinetic Energy:
Definition: Kinetic energy is the energy possessed by an
object due to its motion.
Example: A moving car has kinetic energy.
Potential Energy:
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