6.1 what is a wave?
DESCRIPTION
Introduce waves as disturbances that transfer energy, Introduce software used in the unit to revise the link between pitch and frequency, Demonstrate transverse and longitudinal wavesTRANSCRIPT
The wave model of radiation
21st Century Physics
6.1 What is a wave?April 12, 2023
How many types of wave have you
heard of in everyday use?
Do they have anything in common?
Aims
• Introduce waves as disturbances that transfer energy
• Introduce software used in the unit to revise the link between pitch and frequency
• Demonstrate transverse and longitudinal waves
Introduction to waves
What is a wave?
A wave is a disturbance
moving through a material
What causes a wave?
• The source of a wave is always something that vibrates
• The material that the wave travels through is called the medium
Low frequency, high period
High frequency, low period
Transverse
T
Transverse
• The particles of the medium vibrate at right angles (perpendicular) to the direction in which the wave moves
LongitudinalaLong
Longitudinal
• The particles vibrate (oscillate) back and forth creating a continuing wave of pulses
Water waves
Homework
