Ch.1- Energy of Waves
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| What is a wave? | -Travels through medium
-Any disturbance that transmits energy trough matter or empty space.
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| What is a medium | Substance in which a wave can travel
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| What is a mechanical wave | Waves that need a medium. (will not transfer energy without one)
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| What is an example of electromagnetic waves | Visible light, microwave made by microwave ovens
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| What kind of waves do not need a medium? | Electromagnetic waves
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| What are the 2 types of waves | Transverse and longitudinal
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| What are transverse waves | Wave in which the particles in that wave move perpendicularly
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| What are longitudinal waves | Waves in which the particles in that wave move back and forth/parallel
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| What is a crest | Highest point of transverse wave (top part)
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| What is a trough | Low point of transverse wave
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| Surface wave | When a transverse wave and longitudinal wave combine
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| Difference between transverse and longitudinal waves | These waves are different because the particles move/vibrate in different directions. Transverse= Vibrate in a perpendicular motion
longitudinal= back and forth/parallel motion
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| wave speed formula | V = y x f Y is upside down
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| wavelength formula | Y = v/f Y is upside down
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| frequency formula | F= v/y Y is upside down
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| Reflection | When a wave bounces back off a barrier
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| Example of reflection | Mirror reflections, echo
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| Refraction | The bending of a wave as the wave passes from one medium to another at an angle
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| Diffraction | Bending of wave around a barrier or through an opening
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| Example of diffraction | Sound bends around objects.
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| Interference | Result of 2 or more waves overlapping in the same space
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| 2 types of interference | Constructive & destructive
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| Constructive interference | Increases the amplitude
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| Destructive interference | Decreases or cancels the amplitude
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| Standing waves | Looks like loops standing still (one wave overlapping another)
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| Resonance example of music | Your body resonants with the music at the same frequency.
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
THEG
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