Topic one lesson two
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| Reflection | The bouncing back of an object or a wave when it hits a surface through which it cannot pass
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| Refraction | The bending of waves as they enter a new medium at an angle, caused by a change in speed.
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| Diffraction | The bending or spreading of waves as they move around a barrier or pass through an opening.
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| Absorption | The transfer of energy from a wave to. Material that it encounters
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| Interference | The interaction between waves that meet
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| Standing wave | A wave that appears to stand in one place, even though it is two waves interfering as they pass through each other
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| Resonance | The increase in the amplitude of a vibration that occurs when external vibrations match an objects natural frequency
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| Transmitted | When something has been moved through space or a different medium
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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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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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