Presentation is loading. Please wait.

Presentation is loading. Please wait.

Measuring ze What is Systeme Internationale dUnites (or International System of Units) Abbreviated SI (System of International Measures) It is the internationally.

Similar presentations


Presentation on theme: "Measuring ze What is Systeme Internationale dUnites (or International System of Units) Abbreviated SI (System of International Measures) It is the internationally."— Presentation transcript:

1

2 Measuring ze

3 What is

4 Systeme Internationale dUnites (or International System of Units) Abbreviated SI (System of International Measures) It is the internationally accepted standard units of measure. Formerly known as…

5 The Metric System

6 The SI Base Units are… What it measuresBase Unit LengthMeter (m) MassKilogram (kg) VolumeLiter (l or L or ) TimeSeconds (s) TemperatureKelvin (K) Amount of a substanceMole (mol) Electric CurrentAmpere (A) Luminous IntensityCandela (cd)

7 Basic units of the SI system: Length = meters (m) Mass = gram (g) Volume = liter (L or l)

8 The SI System Im ten times better than the way you measure now!

9 Lets see why… Fill in the blanks (do the math mentally): 13 miles = ____yards ____feet ____inches 2 1/2 gallons =____quarts ____pints ____cups ____ounces (22,880 yds) (68,640 ft.) (823,680 in) (10) (20 p) (40 cups) (320 ounces)

10 That was not the SI system! What number is the SI system based on?

11 Lets see why 10 is an easy base to use.

12 Multiply each of the following numbers by x 10 = 235 x 10 = 12.4 x 10 = 43.2 x 10 = x 10 =

13 Multiply each of the following numbers by x 10 = x 10 = 12.4 x 10 = 43.2 x 10 = x 10 =

14 Multiply each of the following numbers by x 10 = x 10 = x 10 = 43.2 x 10 = x 10 =

15 Multiply each of the following numbers by x 10 = x 10 = x 10 = x 10 = x 10 =

16 Multiply each of the following numbers by x 10 = x 10 = x 10 = x 10 = x 10 =

17 Multiply each of the following numbers by x 10 = x 10 = x 10 = x 10 = x 10 =

18 Multiply each of the following numbers by x 100 = 235 x 100 = 12.4 x 100 = 43.2 x 100 = x 100 =

19 Multiply each of the following numbers by x 100 = x 100 = 12.4 x 100 = 43.2 x 100 = x 100 =

20 Multiply each of the following numbers by x 100 = x 100 = x 100 = 43.2 x 100 = x 100 =

21 Multiply each of the following numbers by x 100 = x 100 = x 100 = x 100 = x 100 =

22 Multiply each of the following numbers by x 100 = x 100 = x 100 = x 100 = x 100 =

23 Multiply each of the following numbers by x 100 = x 100 = x 100 = x 100 = x 100 = 85356

24 Divide each of the following numbers by = = = = =

25 Divide each of the following numbers by = = = = =

26 Divide each of the following numbers by = = = = =

27 Divide each of the following numbers by = = = = =

28 Divide each of the following numbers by = = = = =

29 Divide each of the following numbers by = = = = =.8465

30 Divide each of the following numbers by = = = = =

31 Divide each of the following numbers by = = = = =

32 Divide each of the following numbers by = = = = =

33 Divide each of the following numbers by = = = = =

34 Divide each of the following numbers by = = = = =

35 Divide each of the following numbers by = = = = =.08465

36 Nice Job! If you can multiply & divide by 10 (or any power of 10), then the metric system will be easy for you.

37 Checkpoint: Metric units are based on multiples of what number? Metric units are based on multiples of 10 Multiply--Move the decimal to the right Divide--Move the decimal to the left

38 Scientists created different sized units of measure by adding prefixes to the base units. Its kind of like using a cup as a basic measure and using 1/2 a cup, 1/4 of a cup, or 1/3 of a cup for the smaller measures.

39 PrefixSymbol Numerical value in Base units Power of 10 value GigaG 1,000,000, MegaM 1,000, Kilo-k Hecto-h Deka-da Base Unit Deci-D Centi-c Milli-m Nanon PicoP The SI Prefixes

40 What is length? Length is the distance from one point to another

41 The basic unit of length in the SI system is the … meter

42 Pause… How big do you think a meter is? Find something you think is a meter in length.

43 THE METER The meter is the starting point for measuring length in the metric system. START

44 Heres a meter stick!

45 It takes 10 decimeters to make up 1 meter.

46 It takes 10 centimeters to make up 1 decimeter.

47 If 1 meter = 10 decimeters and 1 decimeter = 10 centimeters, then how many centimeters make up 1 meter?

48 Thats right! 1 meter = 100 centimeters

49 100centimeters = 1 meter

50 It takes 10 millimeters to make up 1 centimeter. Boy, thats small!

51 If 1 meter = 10 decimeters and 1 decimeter = 10 centimeters and 1centimeter = 10 millimeters then how many millimeters make up 1 meter?

52 Thats right! 1000 millimeters = 1 meter

53 It takes 10 millimeters to make up 1 centimeter. Millimeters are so small that they almost run together.

54 Checkpoint One centimeter is divided into how many millimeters? 10 millimeters (mm)

55 Now lets take a closer look at some measuring devices.

56 This is a magnified image of a ruler/meter stick. 1 This is one centimeter. 234

57 This is a magnified image of a ruler/meter stick. 1 This is half of a centimeter. 234

58 This is a magnified image of a ruler/meter stick. 1 This is one millimeter. 234

59 1234 This key measures 3 cm.

60 1234 Or you could say that it measures 30 mm.

61 1234 This key measures 2.5 cm.

62 1234 Or, you could say that it measures 25 mm.

63 1234 This toy car measures 4.2 cm.

64 1234 Or, you could say it measures 42 mm.

65 The metric system deals with powers of 10 1 meter = 10 decimeters = 100 centimeters = 1000 millimeters

66 How many centimeters make up 2 meters?

67 Thats right! There are 200 centimeters in 2 meters.

68 How many millimeters make up 2 meters?

69 Thats right! There are 2000 millimeters in 2 meters.

70 How many decimeters make up 2 meters?

71 Thats right! There are 20 decimeters in 2 meters.

72 The metric system really is 10 times better than our standard system of measurement. It is very easy to convert from one unit to another.

73 You must simply multiply by 10, 100, or OR You must simply divide by 10, 100, or 1000.

74 The end.


Download ppt "Measuring ze What is Systeme Internationale dUnites (or International System of Units) Abbreviated SI (System of International Measures) It is the internationally."

Similar presentations


Ads by Google