Science Chapter 13
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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| A wave is a | distrubance that transfers energy from one place to another.
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| Water that moves up and down traveling in a wave is known as a | disturbance which is transferring energy.
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| Forces | can start disturbances that send waves through a materail. Examples: ropes, water and earthquakes.
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| Mediums | substances which waves move through.
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| Sound waves move through | air.
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| Mechanical waves | move energy through matter
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| Water, the ground, rope and air are all made up of | matter.
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| Light is a wave that transfer energy | through empty space.
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| Waves caused by an earthquake are good examples of | energy transfer
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| Longitudinal waves travel | in the same direction as the disturbance.
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| Transverse waves travel | perpendicular to the direction of the wave.
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| Waves have | amplitude, wavelength and frequency.
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| Crest | highest point of a wave
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| Trough | lowest point of a wave
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| amplitude | from the middle of the wave to the top or bottom of the wave
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| wavelength | distance from one waves crest to the next waves crest
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| frequency | the number of waves which pass a fixed point in a certain amount of time.
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| As frequency decreases | wavelength increases.
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| Speed= | wavelength times frequency
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| Light waves travel 1,000,0000 times faster than | sound waves.
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| Reflection | boucing back of waves
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| Refraction | bending of wave as it enters a medium
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| diffraction | spreading out of waves through an opening
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| interference | meeting and combining of waves
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| constructive interference is | the adding of 2 waves
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| destruction interference is | the subtraction of energy.
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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.
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.
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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