J C Booth Middle School Wave s A disturbance that transfers energy from place to place wave Mechanical waves are created when a source of energy causes a medium to vibrate The highest part of a transverse wave ID: 795838
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Slide1
Coach Dave EdingerPhysical Science (8A)J. C. Booth Middle School
Wave s
Slide2A disturbance that transfers energy from place to place.wave
Slide3Mechanical waves are created when a source of energy causes a medium tovibrate
Slide4The highest part of a transverse wave.Crest
Slide5Waves that move the particles of the medium parallel to the direction in which the wave is movinglongitudinal
Slide6The maximum distance that the particles of a medium move from the rest positionamplitude
Slide7The distance between two corresponding parts of a wavewavelength
Slide8The speed of a wave is its wavelength multiplied by its frequency
Slide9How does energy move through a medium?The particles bump into each other, passing the energy along.
Slide10How are mechanical waves classified?how they move
Slide11Frequency is measured in units calledHertz
Slide12What kind of wave causes the particles in the medium to move t right angles to the direction the wave is moving?transverse
Slide13The ____________ of a mechanical wave is a direct measure of its energy.Amplitude
Slide14What do waves transfer?Energy
Slide15Does this tell us the distance between the two waves?
No
Slide16What is the difference between longitudinal waves with different amplitudes?How compressed or rarefied it is
Slide17The _______________ of a wave tells us the number of waves that are produced in a certain amount of time.Frequency
Slide18What is the frequency if three waves pass a point every second? 3 Hz.
Slide19What part of a longitudinal wave is this?Compression
Slide20Which has a shorter wavelength?
Slide21What kind of wave carries energy through empty space?Electromagnetic
Slide22What is the “stuff” a wave travels through?medium
Slide23Which has a larger amplitude?
Slide24What is an ocean wave’s medium?Salt Water
Slide25How do longitudinal waves move?Parallel to the direction of the wave
Slide26What part of a longitudinal wave is this?Rarefaction
Slide27The particles in a medium ____________________ to pass the wave’s energy along.Bump into each other
Slide28What is the medium for the sound waves that come from a musical instrument?Air
Slide29TRUE or FALSE:Although mechanical waves travel through a medium, they do not carry the medium with them.True!
Slide30Which of these show ONE full wave?
One
wave has
one
crest and
one
trough
Slide31What are the two types of waves?TransverseLongitudinal
Slide32In a transverse wave, the matter in the wave moves _____________________.perpendicular to the wave's direction
Slide33What is the speed of the wave below?Wave speed = wavelength x frequency
Wavelength – 3 inches
Frequency –
8 Hz.
(8 waves pass every second)
Wave Speed =
24 inches/second
Slide34How do you find the wavelength of a longitudinal wave?Measure from compression to compression or rarefaction to rarefaction.
Slide35Transverse waves create points called _________ and __________ or high and low points in the waves movement.CrestTrough
Slide36What part of a wave do these arrows show?
Resting
Position
Amplitude
Slide37What is an example of a longitudinal wave?Sound
Slide38Which of these have a lower amplitude?
Slide39What is an example of a transverse wave?the ocean
Slide40What is a vibration?Up and down/back and forth motion
Slide41Can the medium a wave passes through affect the wave’s speed?Yes!
Slide42What part of a wave are these arrows showing?
Wavelength
Slide43____________ waves are waves that need a medium to travel through.Mechanical
Slide44What is the frequency if six waves pass a point every three seconds?2 Hz.
Slide45What part of a longitudinal wave is shown?
Slide46Parts where the coils in a longitudinal waves are spread out.Rarefaction
Slide47Which has a higher frequency?
Slide48Parts where the coils in a longitudinal waves are close together.Compression