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Introduction To Matter

Subject : science
Instructions:
  • Answer 50 questions in 15 minutes.
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  • Match each statement with the correct term.
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This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Elements that have properties of both metals and nonmetals; sometimes referred to as semiconductors.






2. The resistance of a gas or liquid to flow.






3. The smallest unit of an element that maintains the properties of that element






4. The state of matter in which the volume and shape of a substance are fixed.






5. A subatomic particle that has a positive charge and that is located in the nucleus of an atom; the number of protons in the nucleus is the atomic number - which determines the identity of an element.






6. The change of a substance from one physical state to another






7. The sum of the numbers of protons and neutrons in the nucleus of an atom.






8. One of the elements of group 17 of the periodic table






9. A substance made up of atoms of two or more different elements joined by chemical bonds






10. A characteristic of a substance that does not involve a chemical change - such as density - color - or hardness.






11. A unit of geologic time that is longer than an epoch but shorter than an era.






12. In physical science - an atom's central region - which is made up of protons and neutrons.






13. The conversion of a liquid to a vapor when the vapor pressure of the liquid equals the atmospheric pressure






14. The curve at a liquid's surface by which one measures the volume of the liquid.






15. An element that is shiny and that conducts heat and electricity well.






16. A combination of two or more substances that are not chemically combined.






17. One of the elements of group 2 of the periodic table






18. A mixture in which particles of a material are more or less evenly dispersed throughout a liquid or gas.






19. The ratio of the mass of a substance to the volume of the substance






20. The mass of an atom expressed in atomic mass units






21. An atom that has the same number of protons (or the same atomic number) as other atoms of teh same element do but that has a different number of neutrons (and thus a different atomic mass)






22. A substance that cannot be separate or broken down into simpler substances by chemical means






23. A measure of the gravitational force exerted on an object; its value can change with the location of the object in the universe.






24. A change of matter from one form to another without a change in chemical properties.






25. In a solution - the substance in which the solute dissolves.






26. A property of matter that describes a substances ability to participate in chemical reactions






27. The law that states that the repeating chemical and physical properties of elements change periodically with the atomic numbers of the elements.






28. A measure of the size or region in three-dimensional space.






29. A nerve cell that is specialized to receive and conduct electrical impulses.






30. The state of matter that has a definite volume but not a definite shape






31. One of the elements of Group 1 of the periodic table






32. The amount of force exerted per unit area of a surface.






33. The change of state in which a solid becomes a liquid by adding heat or changing pressure.






34. A unit of mass that describes the mass of an atom or molecule






35. A measure of the amount of matter in an object; a fundamental property of an object that is not affected by the forces that act on the object - such as the gravitational force.






36. The process in which a solid changes directly into a gas (the term is sometimes also used for the reverse process).






37. The change of state from a gas to a liquid






38. The number of protons in the nucleus of an atom; the atomic number is the same for all atoms of an element






39. The law that states that the volume of a gas is inversely proportional to the pressure of a gas when temperature is constant

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40. The ability of one substance to dissolve in another at a given temperature and pressure; expressed in terms of the amount of solute that will dissolve in a given amount of solvent to produce a saturated solution.






41. A region around the nucleus of an atom where electrons are likely to be found






42. A vertical column of elements in the periodic table; elements in a group share chemical properties






43. A mixture consisting of tiny particles that are intermediate in size between those in solutions and those in suspensions and that are suspended in liquid - solid - or gas






44. A sample of matter - either a single element or a single compound - that has definite chemical and physical properties.






45. An element that conducts heat and electricity poorly and that does not form positive ions in an electrolytic solution.






46. A from of matter that does not have a definite volume or shape






47. One of the elements of Group 18 of the periodic table (helium - neon - argon - krypton - xenon - and radon); noble gases are unreactive.






48. Anything that has mass and takes up space.






49. The tendency of an object to resist being moved or - if the object is moving - to resist a change in speed or direction until an outside force acts on the object






50. A change that occurs when one or more substances change into entirely new substances with different properties