wave 1
What is wave frequency?
The number of complete waves that pass a given point in a certain amount of time
What causes a wave to start?
When a source of energy causes a medium to vibrate.
What is a wave?
A disturbance that transfers energy from place to place.
What is a example of resonance?
Violin, guitar or string instrument or an object that is hit, plucked, or struck.
Give an example of an longitudinal wave
sound waves
ultrasound waves
What happens when a wave hits a surface in which it cannot pass?
reflection occurs
What are mediums made of?
Gases, liquids and solids.
Could waves of different amplitude interfere?
Destructive interference occurs when waves come together in such a way that they completely cancel each other out.
What is Interference?
The change in a wave amplitude when two waves of a similar frequencies meet.
What is pitch?
Pitch is how high or low a sound is
What is a transverse wave? What is a longitudinal wave?
A transverse wave is a wave in which the medium vibrates at right angles to the direction of its propagation
A longitudinal wave is a wave vibrating in the direction of propagation
Where do surface waves travel?
Along the surface of the medium.
What is needed to create a wave?
Waves are created by energy passing through water, causing it to move in a circular motion
What is Diffraction?
The change in a waves direction between or around barriers (stuff in the way).
Give an example of transverse waves
ripples on the surface of water
a Mexican wave in a sports stadium
What are the 2 types of Interference?
Constructive: two crest or troughs meet
Destructive: crest of one meets the trough of another
How does sound travel?
They move back and forth
What are the wave properties?
amplitude, frequency, crest, trough, wavelength, speed, and phase.
What is Refraction?
The change in direction of waves as they pass from one medium to another
What is wavelength?
the distance between successive crests of a wave.
What is an example of a wave that doesn't need a medium to travel through?
The light from the sun
What is Resonance?
Resonance is the vibration of an object in response an object vibration at a certain frequency.
How are longitudinal and transverse waves alike, how are they different?
transverse waves oscillate perpendicular to the direction of propagation, while longitudinal waves oscillate parallel to the direction of propagation.
What is Reflection?
The bouncing of waves off a surface
How is reflection is used?
Reflection is used is sonar and echolocation