2. WAVES
•Waves are disturbances that
travel through either a
medium or a vacuum in
space, resulting in vibrations
or oscillations.
Note that energy passing through either a medium or a vacuum creates the
waves.
3. • Waves are categorized according
to some of their characteristics and
behaviors.
Two types of waves
1. Mechanical waves
2. Electromagnetic wave
4. • Mechanical waves are waves that require a
medium or any matter through which its
energy can travel.
• The energy and vibrations of mechanical
waves interact with the molecules of a
medium, which may come in solid, liquid, or
gaseous form.
• Sound waves, water waves, seismic
waves, and slinky or spring waves are
some examples of mechanical waves.
5. • In Physics, oscillations are continuous
back-and-forth or side-to-side
movements of an object.
• A wave can produce an oscillation in
the particles of the medium through
which it travels.
• When particles are oscillating towards
a direction perpendicular to the
direction of the wave, the wave is
classified as a transverse wave.
6.
7. • Transverse wave, motion in which all
points on a wave oscillate along
paths at right angles to the direction
of the wave’s advance. Surface
ripples on water, seismic S (secondary)
waves, and electromagnetic (e.g.,
radio and light) waves are examples of
transverse waves.
8. • Crest: the highest point of the wave.
• Trough: the lowest point of the wave.
• Wave height: the distance between the crest and the trough. (also
known as amplitude)
• Wavelength: the distance between two identical points on
successive waves, for example crest to crest, or trough to trough.
