Test your basic knowledge |

Basic Matter

Subject : engineering
Instructions:
  • Answer 37 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 substance made of two or more substances that can be separated by physical means - ie not chemically bonded together






2. A force of attraction between particles






3. The resistance a material offers to penetration of scratching






4. Caused by an attraction between the positively charged metal atom nuclei and the negatively charged cloud of free electrons. Free electron allows metals to be a good thermal and electrical conductors and let the bond not fixed in position






5. A mixture that contains at least one metal. This can be a mixture of metals or a mixture of metals and non - metals






6. A positively or negatively charged atom or molecule caused by he loss or gain of electrons from an atom or atoms






7. Natural wood and manmade






8. 1) Thermoplastics plastics 2) Thermoset plastics 3) Elastomers






9. The resistance of an elastic body to deflection by an applied force






10. Earthenware - porcelain - stoneware and glass






11. V = IR (V= voltage - I = current - R = resistance). unit - Ohms






12. A measure of the degree of increase in dimension when an object is heated. This can be measured by an increase in the length (m) - area (m2) or volume (m3). The expansivity can be measured as a fractional increase in dimension per Kelvin increase in






13. 1) Ferrous metals and alloys (irons - carbon steels - alloy steels - stainless steels - too and die steels) 2) nonferrous metals and alloys (aluminum - copper - magnesium - nickel - titanium - precious metals - refractory metals - super alloys)






14. Fixed volume but take the shape of their container






15. 1) glasses 2) glass ceramics 3) Graphite 4)Diamond






16. Bond that shares electrons in order to complete part- filled shells






17. The smallest part of an element that can exist chemically






18. A substance made of only one element or compound






19. A measure of how fast heat is conduct through a slab of material with a given temperature difference across the slab. Unit: W/m C (W = watts - m = metres - C = Celsius)






20. Ferrous and non - ferrous






21. Two or more atoms which are normally bonded together covalently






22. Thermosets and thermoplastics






23. A mixture composed of two or more substances (materials) with one substance acting as the matrix or glue






24. A substance that cannot be decomposed into simpler substances






25. Hydrogen bond - van der Waals bond






26. The ability of a material to withstand pulling forces






27. Vegetable and meat origin






28. The ability of a material to be drawn or extruded into a wire or other extended shape.






29. The ability of a material to resist the propagation of cracks






30. No fixed volume and no fixed shape






31. Formed when the fluctuating electrostatic charge in adjacent atoms of different molecules produces a weak electrostatic force between the molecules. Also present as a secondary bond between the long- chain molecules of polymers.






32. 1)reinforced plastics 2)Metal- matrix composites 3)Ceramic- matrix composites 4)sandwich structures 5)concrete






33. Mass per unit volumn of a material (D = M/V) unit : kg/m3






34. Fixed volume and fixed shape






35. Bond between adjacent oppositely charged ions






36. This is the measure of a material's ability to conduct electricity. lower resistivity conducts electricity well






37. A substance formed by the combination of elements in fixed proportions







Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?


Let me suggest you:

Browse all subjects

Browse all tests

Most popular tests



Major Subjects

Tests & Exams


AP
CLEP
DSST
GRE
SAT
GMAT

Browse all subjects

Browse all tests

Most popular tests