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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






18. 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.






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






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






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






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






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






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






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






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


27. 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






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






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






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






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






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






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






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






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






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


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






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






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






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






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






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






44. A subatomic particle that has a negative charge






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






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






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






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






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






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