4.1 Waves

Define wave

disturbance carrying energy w/out transferring matter

Transverse waves are __ to wave direction
e.g. e__ waves, w__ waves, l__, S waves

perpendicular, electromagnetic, water, light

Longitudinal waves are __ to wave direction
e.g. s__ waves, spring waves, P waves

parallel, sound

Label the Qmark

peak

Label the Qmark

rest

Label the Qmark

trough

Label the Qmark

amplitude

Label the Qmark

wavelength

Left arrow?

compression

Right arrow?

rarefaction

What type of wave is this?

longitudinal

What type of wave is this?

transverse

Define frequency

# of complete oscillations per time

with f: T = ?

1/f

What unit is used for frequency?

Hz

Electromagnetic (EM) waves __ (do/don’t) need a medium to travel

dont

Mechanical waves __ (do/don’t) need a medium to travel

do

Wave speed formula

v = f x lamba

Wave speed unit: __
Frequency unit: __
Wavelength unit: __

m/s, Hz, m

Define wavelength (λ)

dist between 2 consec points

R__ is when a wave b__ off a boundary

reflection, bounces

R__ is when a wave b__

refraction, bends

D__ is when a wave s__ out as it moves thru a g__

diffraction, spreads, gap

Diffraction
__(inc/dec) g__ size = __(inc/dec) diffraction effect

inc gap, dec

Diffraction
__(inc/dec) w__ = __(inc/dec) diffraction effect

inc wavelength, inc