Subjects
Grades
Energy Transformation
Concept sheet | Science and Technology
Secondary
3-4
Table of contents
Choose your level.
Secondary 3 (AST)
Energy transformation is an electrical function performed by any electrical component capable of transforming electrical energy into another form of energy.
A light bulb, a heating element and an electric motor are components that transform energy in an electrical circuit.
The light bulb in a flashlight
Source: Adapted from Nor Gal, Shutterstock.com
A light bulb transforms electrical energy into radiant energy.
The heating element in a toaster
Source: Adapted from BFunkhouser, Shutterstock.com
A heating element transforms electrical energy into thermal energy.
The motor in an electric toy car
Source: Adapted from ainarhamra, Shutterstock.com
An electric motor element transforms electrical energy into mechanical energy.
See Also
Secondary 4
Energy transformation is an electrical function performed by any electrical component capable of transforming electrical energy into another form of energy.
A light bulb, a heating element, an electric motor, a speaker, an audible warning device and a piezoelectric crystal are all components that transform energy in an electrical circuit.
The light bulb in a flashlight
Source: Adapted from Nor Gal, Shutterstock.com
A light bulb transforms electrical energy into radiant energy.
The heating element in a toaster
Source: Adapted from BFunkhouser, Shutterstock.com
A heating element transforms electrical energy into thermal energy.
The motor of an electric toy car
Source: Adapted from ainarhamra, Shutterstock.com
An electric motor element transforms electrical energy into mechanical energy.
A speaker
Source: Adapted from New Africa, Shutterstock.com
A speaker transforms electrical energy into mechanical energy (sound).
An audible warning device
Source: Adapted from Mohd Rodi, Shutterstock.com
An audible warning device, or an alarm, transforms electrical energy into mechanical energy (sound).
A piezoelectric crystal inside a quartz watch
Source: Adapted from mujijoa79, Shutterstock.com
A piezoelectric crystal transforms electrical energy into mechanical energy (vibration). In a quartz watch, electrical oscillations cause the crystal to vibrate. These vibrations are used to measure time.
A piezoelectric crystal can also transform mechanical energy into electrical energy. In this capacity, it functions as a power supply.