1. Physical Science Pre-Test Chapter 16 & 17

2. _______ is the most common state of matter.plasma

3. _______ has definite shape and definite volume.solid

4. _______ has no definite shape, but has definite volume.liquid

5. _______ has no definite shape or definite volume.gas

6. The kinetic theory of matter states _________________. All particles of matter are moving

7. _______ means “having no form.amorphous

8. _______ have vibrating particles that don’t have enough energy to move out of position.solids

9. _______ solids have particles arranged in repeating geometric patterns. crystalline

10. _______ have enough energy to move over each other, but not enough energy to separate from each other. liquid

11. _______ have particles with enough energy to separate from each other and move about freely. gas

12. _______ is a gas-like mixture of positively and negatively charged particles. plasma

13. _______ _______ explains why matter expands when heated and contracts when cooled. Thermal expansion

14. Why is it easier to remove a tight jar lid by running hot water over it than by prying it off with a knife? The hot jar lid has caused the metal to expand so it is not as tight on the glass jar

15. ______ ______ ______ is the amount of energy needed to change a material from solid to liquid state. Heat of fusion

16. ______ ______ ______ is the amount of energy needed to change a material from liquid to the gas state. Heat of vaporization

17. _______ and _______ are the two things that can occur when heat is added to a substance. Temperature increase Phase change

18. _______ is the amount of force per unit of area. Be able to state the equation for pressure. Pressure P = F/A

19. _______ is the SI unit of pressure.Pascal

20. In dealing with Boyle’s Law, ______ is held constant. temperature

21. In dealing with Charles’ Law, _______ is held constant.pressure

22. With Boyle’s Law, as volume increases pressure _______.decreases

23. With Charles’ Law, as volume increases temperature _______.increases

24. _______ is the ability of a fluid to exert an upward force on an object immersed in it. buoyancy

25. _______ principle states that buoyant force on an object is equal to weight of the fluid displaced by object. Archimedes

26. _______ principle states that pressure applied to a fluid is transmitted unchanged throughout the fluid. Pascal

27. _______ principle states that as the velocity of a fluid increases, the pressure exerted by the fluid decreases. Bernoulli

28. Be able to give an example for each of Archimedes’, Bernoulli’s, and Pascal’s principle. A – floating B – flying P - hydraulics

29. A _______ _______ has different materials which can easily be distinguished. Heterogeneous mixture

30. A _______ _______ has two or more substances uniformly spread out within it. Homogeneous mixture

31. A _______ is another name for a homogeneous mixture. solution

32. _______ has one kind of atom.element

33. _______ has two or more kinds of atoms.compound

34. _______ mixture is evenly mixed.homogeneous

35. _______ mixture is unevenly mixed.heterogeneous

36. A _______ is a heterogeneous mixture that never settles. colloid

37. The scattering of light by particles in a mixture is called the _______ _______. Tyndall effect

38. A _______ is a heterogeneous mixture containing a liquid in which visible particles settle. suspension

39. _______ _______ is a characteristic you can observe without changing the substances that make it. Physical property

40. A _______ _______ is a change in size, shape, or state of matter. Physical change

41. A _______ _______ is a change of one substance in a material to a different substance. Chemical property

42. A _______ ______ is a characteristic of a substance that indicates whether it can undergo a chemical change. Chemical change

43. State the law of conservation of mass. Matter can neither be created or destroyed it just changes forms

44. _______ states that matter can neither be created nor destroyed, it just changes form. Law of conservation of mass

45. Can a solution scatter light? Colloid? Suspension? NoYesYes

46. Will a solution settle upon standing? Colloid? Suspension? NoNoYes

47. Can a solution be separated using filter paper? Colloid? Suspension? NoNoYes