1.When and by whom was the metric system developed?
2. The metric system is based on powers of ________.
3. Where is the metric system used?
4. The metric system is especially used by what group?
5. How is the metric system abbreviated & how did it get this abbreviation?
6. Regardless of the ________, the metric system uses the __________ prefixes.
7. Give 3 of the most common metric prefixes and their value.
8. One meter equals how many centimeters? How many millimeters?
Length, Mass, and Volume
9. Define length.
10. What is the SI base unit for length?
11. _________ sticks or __________ rulers are used to determine length in the metric system.
12. Define mass.
13. If two object are the same size, will theyhave the same mass? Explain your answer.
14. What is the SI unit for mass?
15. What common object has approximately the mass of one gram?
16. How could you change the mass of an object?
17. A ___________ ___________ __________ is a scale used to measure metric masses.
18. Why will a triple beam balance give the same mass for an object no matter what planet it is on?
19. Define weight.
20. Explain why the weight of an object can change?
21. What is the SI unit for measuring weight?
22. What is gravity?
23. The force of gravity depends on what 2 things?
24. The greater the distance, gravity _________ so weight would be ____________.
25. The more mass an object has, the pull of gravity is _________ so the object will have ___________ weight.
26. How much less gravity does the moon have than the Earth?
27. If you had a mass of 36 kilograms on Earth, what would be your mass on the moon?
28. If you had a weight of 60 Newtons on Earth, what would be your weight on the moon?
29. What planet has 2.5 times more gravity than the Earth?
30. Would your mass be the same on Jupiter? your weight?
31. Define volume.
32. How do you find the volume of a box?
33. The units for the volume of a box would be _________ centimeters.
34. Find the volume of a cube that is 3 cm on all sides.
35. What is the base unit for the volume of a liquid?
36. What scientific equipment is used to measure the volume of liquids?
37. Liquids make a curved upper surface when poured into graduated cylinders, so you must read the _____________ of the curve known as the ________________.
38. In the metric system, 1 cm3 equals __________________ of water having a mass of ________________.
Water Displacement and Density
39. ____________ ______________ is a method used to tell the volume of irregularly shaped objects.
40. If a rock causes the water level in a graduated cylinder to rise from 8.8 to 10 ml, what is the volume of the rock?
41. What is the mass of 25 ml of water? (Hint: look back at your answer to question #38.)
42. What is the mass of 1 liter of water?
43. Define density.
44. When finding the density of an object, the ___________ of an object measured in ___________ is divided by its _____________ measured in ______________ or ______________.
45. What are the units of measurement for density?
46. Sketch the density wheel that can be used to solve density problems.
47. If you know the mass and density, how can you determine the volume using the density wheel?
48. Find the density if the mass of an object is 24 g and the volume is 8 cm3.
49. Find the volume if the density is 3g/cm3 and the mass is 24 grams.
50. Find the mass if the density is 2g/cm3 and the volume is 8cm3 .
51. What is the density of 1 gram of water?
52. What is the volume of .5 kg of water?
53. In terms of density, why do some objects float?
54. Objects with a density less than __________ will float on top of water.
55. A toy boat has a density of 1.5 g/ml. Will the toy boat float?
56. What is true about objects that have a density equal to water?
57. How do fish and submarines that are denser than water float?
58. Why did the Titanic float before it hit the iceberg?
59. Why did the Titanic sink after hitting the iceberg?