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Introduction To Matter

Subject : science
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

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






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






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






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






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






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






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


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






9. Describes something that occurs or repeats at regular intervals.






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






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






12. 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.






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






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






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






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






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






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






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






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






21. The change of a substance from a liquid to a gas






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






23. 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)






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






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






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






27. A homogeneous mixture throughout which two or more substances are uniformly dispersed.






28. The amount of a particular substance in a given quantity of a mixture - solution - or ore






29. The physical forms of matter - which are solid - liquid - gas - and plasma.






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






31. 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.






32. Elements that have properties of both metals and nonmetals; sometimes referred to as semiconductors.






33. 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.






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






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






36. A subatomic particle that has a negative charge






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






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






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






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






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


42. 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






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






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






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






46. The force that acts on the surface of a liquid and that tends to minimize the area of the surface.






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






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






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






50. A measure of how hot (or cold) something is; specifically - a measure of the average kinetic energy of the particles in an object.