Unit 7 Vocabulary
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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| Inertia | An object in motion will stay in motion unless acted upon by an outside force.
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| Action-reaction | "For every action, there is an equal and opposite reaction."
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| Force | Any push or pull.
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| Pressure | Force acting on a given area.
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| Elastic limit | The amount of pressure an object can withstand and still return to its orginal shape.
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| Fault | A fracture within the Earth where rock movement occurs.
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| Normal fault | Tension-the rocks are moving apart.
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| Reverse fault | Compression-the rocks push or press togetger.
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| Strike-slip fault | Shearing-the rocks slide past each other.
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| Compression wave | Matter is squeezed together. ex: accordion.
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| Transverse wave | Matter moves at right angles to the direction the wave is moving.
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| seismic wave | waves generated by earthquakes.
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| focus | the point inside the Earth where seismic waves orginate. (5-700 km below surface)
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| primary wave | AKA, compression waves. Travel faster and arrive first.
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| secondary wave | AKA, transverse waves. Travel slower and arrive second.
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| epicenter | Point on Earth's surface directly above the focus.
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| surface wave | waves generated when seismic waves reach the surface.
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| vent | Openings on the surface of the Earth where magma flows out.
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| calm eruption | thin magma, almost water-like. Magma is released gently and magma flows out of vent.
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| violent eruption | thick magma, like syrup. Clogs vent causing a buildup of pressure and sudden release causes magma to erupt explosively.
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| shield volcano | gentle slope, formed from hot, thin lava. No violent eruptions and lava erupts out of more than one vent.
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| cinder cone | As and cooled lava form a steep cone. Leave a single vent and has violent eruptions.
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| composite cone | Steep-sided mountains. Alternates gentle and explosive eruptions. Formed from flowing and hardened lava, and ash.
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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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