Define this
What is harmonic motion
Motion that repeats
What are the 2 types of mechanical waves
transverse and longitudinal
What are the 4 wave interactions
reflection,
refraction,
diffraction
absorption.
Oscillation = motion that repeats regularly, what is an example
like our solar system.
days, months & years are results of
orbital cycles.
A string vibrates at a frequency of 20 Hz. What is its period?
.005 seconds
What is a vibration
a very fast repetition
what is an example of a transverse wave
water waves, vibrating string
What is an example of a wave reflection
an echo
magnifying glass & prisms
are examples of
refraction
A pendulum has a period of 0.3 second. What is its frequency?
3.33 hertz
What is amplitude
the size of the cycle, the
maximum distance.
the oscillator moves away from its
equilibrium position
What is an example of a longitudinal wave
sound, large spring, slinky
When a wave passes through a material and bends it is called
refraction
These animals can hear ultrasound
bats, whales
A wave has frequency of 50 Hz and a wavelength of 10 m. What is the speed of the wave?
500m/s
What is a reflection
when a wave bounces off a material
A transverse wave has
its oscillations _________ to the direction the wave moves.
perpendicular
_______causes sound waves to travel through small openings.
Name some waves found in everyday life
radio waves, X ray, microwave, light
A wave has frequency of 5 Hz and a speed of 25 m/s. What is the wavelength of the wave?
5 meters
What is frequency
how often the wave is moving up and down
A longitudinal wave has vibrations in the _____ _________as the wave moves.
same direction
Name some examples of wave absorption
Absorption examples are
sun glasses and curtains on a stage
energy
A wave has wavelength of 10 m and a speed of 340 m/s. What is the frequency of the wave?
34 hertz