Unit 5:Energy
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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| Energy | The ability to do work or cause a change.
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| Law of conservation of energy | Energy cannot be created or destroyed, it can only be transferred.
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| Open system | A system that continuously interacts with its surrounding.
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| Closed system | A system that can exchange energy,but not matter,with its surroundings.
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| Electricity | The continuous flow of electric charges through a conductor.
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| Electron | A negatively charged particle located on the outside the atom's nucleus.
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| Electric circuit | A closed path through which an electric current flows or may flow.
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| Electric Current | A flow of electric charge.
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| Voltage | The difference in electric potential energy between two places in a circuit.
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| Resistance | The measurement of how difficult it is for charges to flow through a material.
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| Electromagnetic Spectrum | The range of seven types of waves that carry energy as electricity and magnetism.
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| Medium | A substance through which a wave travels.
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| Wave speed | The speed of a wave is determined when both frequency and wavelength are known. S= λf
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| Wave | A disturbance that transfer energy from one place to another without requiring matter to move the entire distance.
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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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