Term
| What is the oxidation number of pure elements? |
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Definition
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Term
| If an element symbol in a chemical formula has no subscript, what is assumed? |
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Definition
| A subscript of one is understood. |
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Term
Yes or No
Any atom can bond to another atom under the right conditions. |
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Definition
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Term
| Normally atoms are most stable when they... |
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Definition
| attain a full valence shell of electrons |
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Term
| Give the family name for Group 8A elements. |
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Definition
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Term
| Give the family name for Group 1A elements. |
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Definition
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Term
| Why is hydrogen, a nonmetal, placed n the periodic table near metals? |
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Definition
| It has only one valence electron, as do the Group 1A elements. |
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Term
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Definition
| An element is any pure substance made of only one kind of atom. |
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Term
| Be able to identify sulfur by its abbreviation. |
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Definition
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Term
| Be able to identify aluminum by its abbreviation. |
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Definition
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Term
| Be able to identify neon by its abbreviation. |
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Definition
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Term
| Be able to identify calcium by its abbreviation. |
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Definition
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Term
| An atom's ability to form bonds is most affected by its number of... |
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Definition
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Term
| Which determines the identity of an atom? |
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Definition
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Term
| The heaviest, most massive particle in an atom is the... |
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Definition
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Term
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Definition
| lower in frequency than red light |
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Term
| How is light different from sound? |
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Definition
| It can travel through a vacuum. |
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Term
| What is necessary to make a sound wave? |
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Definition
| Something must vibrate in a medium. |
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Term
| Loudness is related to a sound wave's... |
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Definition
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Term
| In which medium does sound travel the fastest? |
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Definition
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Term
| After two waves collide, they... |
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Definition
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Term
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Definition
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Term
| In periodic mostion the opposite of damping is... |
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Definition
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Term
| An electrical current that regularly changes direction is called a(n)... |
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Definition
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Term
| Most of the electricity we use in our homes is supplied by a(n)... |
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Definition
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Term
| Devices that convert mechanical energy into electrical energy are called... |
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Definition
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Term
| Magnetic lines of force point... |
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Definition
| toward a south magnetic pole |
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Term
| What is the difference between the geographic and magnetic poles on the earth? |
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Definition
| The geographic poles are at the axes of the earth's spin where all lines of longitude intersect. The magnetic poles are where the earth's concentrated magnetic field lines are vertical. They are not at the same location. The geographic poles are fixed, but the matnetic poles are drifting. |
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Term
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Definition
| conductors and insulators |
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Term
Which of the following is an insulator?
-rubber
-germanium
-silicon
-lead |
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Definition
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Term
Which of the following is a conductor?
-plastic
-concrete
-wood
-gold |
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Definition
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Term
Which of the following have a low resistance to charge?
-nonconductors
-conductors
-insulators
-semiconductors |
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Definition
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Term
| Charging an object without actually adding or removing electrons is called... |
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Definition
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Term
| An electrical charge is usually produced by the removal or addition of... |
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Definition
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Term
| Two objects will attract each other electrically only if... |
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Definition
| one is positive and one is negative |
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Term
| Two touching objects that have the same temperature have reached... |
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Definition
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Term
| How are the fiducial points of the Celsius and Fahrenheit scales similar? |
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Definition
| They both use the phase-change points of water. |
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Term
| Which type of heat transfer is demonstrated by the sun heating the leather seats in a car? |
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Definition
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Term
| Which type of heat transfer is demonstrated by hot air rising from the land? |
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Definition
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Term
| Which type of heat transfer is demonstrated by a metal rod becoming hot in its entirety when one end is placed in a fire? |
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Definition
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Term
| Which type of heat tranfer is demonstrated by the heating of a light bulb when it is on? |
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Definition
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Term
| Which type of heat transfer is demonstrated by ice melting when placed in a warm drink? |
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Definition
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Term
| Which type of heat transfer is demonstrated by the fact that a balloon filled with hot air rises, while one full of cold air sinks? |
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Definition
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Term
| The derived SI unit for pressure is the... |
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Definition
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Term
| Objects immersed in water... |
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Definition
| weigh less than they do in air. |
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Term
| Fluid mechanics is the study of... |
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Definition
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Term
A spiral staircase in a lighthouse is most like a(n)...
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Definition
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Term
For work to be done...
-a force must be exerted parallel to the direction of motion.
-a change must occur in a physical system.
-energy must be used.
-all of the above. |
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Definition
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Term
| A wheel is a modification of a(n)... |
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Definition
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Term
| Which nuclear process releases energy when oen atom splits? |
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Definition
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Term
| Which nuclear process releases energy when two atoms merge? |
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Definition
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Term
| Which type of energy does a car horn not possess when it sounds? |
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Definition
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Term
| Air resistance is a form of... |
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Definition
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Term
| The forces acting on a system in mechanical equilibrium are all... |
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Definition
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Term
| If time were plotted on a coordinate axis, the event that marks the reference point would be... |
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Definition
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Term
| In what field is improving a long-distance runner's stride and pacing classified? |
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Definition
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Term
| Which is the best unit for the mass of a tractor-trailer load of timber: milligrams, grams, or kilograms. |
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Definition
| The best unit of these three is kilograms, since the mass will be large. |
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Term
| The system of internationally accepted units is known as the... |
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Definition
| Systeme International d'Unites (SI) |
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Term
| Scientists generally prefer _______ data over ______ data. |
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Definition
| quantitative over qualitative |
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Term
| How does an atom become an ion? |
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Definition
| An atom becomes an ion when it gains or loses electrons to create a charge imbalance in a previously neutral atom. An atom cannot gain or lose protons to become an ion. |
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Term
| Which part of an atom makes up most of its mass? |
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Definition
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Term
| Atoms can bond to form... |
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Definition
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Term
| Most conceptual models can also be expressed through... |
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Definition
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Term
| What is the source of most problems scientists seek to solve? |
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Definition
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