Fall Semester Vocabulary Review
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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| Proton | positively charged and found in nucleus
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| Neutron | neutral or no charge and found in the nucleus
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| Electron | negatively charged and located in electron cloud
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| Atomic Number | Number of protons in nucleus of each atom of that element
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| Periodic Table of Elements | Chart to organize and display known elements; in order by atomic number
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| Group | Columns on periodic table;also known as “families”;Elements have similar chemical and physical properties & same number of valence electrons
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| Metals | Shiny, good conductors, mostly solids, malleable (can be shaped) & ductile (can be drawn into wires), located on left and center of periodic table
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| Chemical Symbol | One or two letter code that stands for the element on the periodic table
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| Chemical Formula | Way of describing the elements and number of atoms that make up one molecule of a compound using symbols, subscripts, and coefficients
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| Coefficient | Number placed in front of a formula to balance an equation
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| Chemical Reaction | The process by which atoms of one or more substances are rearranged to form different substances
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| Reactants | Starting substances in chemical reaction
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| Products | Substances formed during a chemical reaction
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| Law of Conservation of Mass | States that matter can neither be created nor destroyed, it can only change form
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| Force | A push or a pull
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| Speed | The distance traveled by an object in a given amount of time
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| Velocity | The speed of an object and its direction of motion
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| Acceleration | Change in speed or direction;Can be positive (speeding up) or negative (slowing down)
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| Balanced Forces | Equal in size and opposite in direction;Do not cause a change in motion
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| Unbalanced Forces | Always cause a change in motion;NOT equal in size or opposite in direction
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| Newton’s First Law | An object at rest stays at rest and an object in motion will stay in motion unless acted upon by an unbalanced force
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| Newton’s Second Law | The greater the force applied to an object, the greater the acceleration; The smaller the mass of an object, the greater its acceleration when a force is applied; Force = Mass X Acceleration
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| Newton’s Third Law | For every action there is an equal and opposite reaction; Forces act in pairs
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| Star | Huge object in space made up of gas and giving off light and heat from nuclear reactions
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| Nuclear Fusion | nuclei of atoms are joined together, releasing energy that power stars like the sun
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| Apparent Magnitude | Measures how bright objects appear to us, not how bright they actually are
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| Absolute Magnitude | Measures the actual brightness of the object
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| Galaxy | A large group or cluster of stars in the universe
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| Comet | small body of rock, ice or cosmic dust; Give off gas and dust in the form of a tail as it passes close to the sun
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| Asteroids | Objects of rock, metal and ice that orbit the sun; most found between Mars and Jupiter
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| Electromagnetic Wave | made by vibrating electrons
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| Light Year | distance that light can travel in one year; used to measure distances in space
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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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Created by:
anewnam
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