Introduction to Physics and Order of magnitude. Physics IB topic 1.

1. Topic 1
Physics and Physical
measurement

3. 1.1 The realm of Physics

4. 1.1 The realm of Physics
Range of magnitude of quantities in our universe

5. 1.1 The realm of Physics
Range of magnitude of quantities in our universe
• State and compare quantities to the nearest order of
magnitude

6. 1.1 The realm of Physics
Range of magnitude of quantities in our universe
• State and compare quantities to the nearest order of
magnitude
• State the ranges of magnitude of distances, masses and times
that occur in the universe, from smallest to greatest

7. 1.1 The realm of Physics
Range of magnitude of quantities in our universe
• State and compare quantities to the nearest order of
magnitude
• State the ranges of magnitude of distances, masses and times
that occur in the universe, from smallest to greatest
• State ratios of quantities as differences of orders of
magnitude

8. 1.1 The realm of Physics
Range of magnitude of quantities in our universe
• State and compare quantities to the nearest order of
magnitude
• State the ranges of magnitude of distances, masses and times
that occur in the universe, from smallest to greatest
• State ratios of quantities as differences of orders of
magnitude
• Estimate approximate values of everyday quantities to one or
two significant figures and/or to the nearest order of
magnitude

9. 1.1 The realm of Physics
Range of magnitude of quantities in our universe
• State and compare quantities to the nearest order of
magnitude
• State the ranges of magnitude of distances, masses and times
that occur in the universe, from smallest to greatest
• State ratios of quantities as differences of orders of
magnitude
• Estimate approximate values of everyday quantities to one or
two significant figures and/or to the nearest order of
magnitude

10. 1.1 The realm of Physics
• State and compare quantities to the nearest order of
magnitude

11. 1.1 The realm of Physics
• State and compare quantities to the nearest order of
magnitude

12. 1.1 The realm of Physics
• State and compare quantities to the nearest order of
magnitude
−10
Diameter of an atom ≈ 10 m

13. 1.1 The realm of Physics
• State and compare quantities to the nearest order of
magnitude
−10
Diameter of an atom ≈ 10 m
30
Mass of the Sun ≈ 10 kg

14. 1.1 The realm of Physics
• State and compare quantities to the nearest order of
magnitude
−10
Diameter of an atom ≈ 10 m
30
Mass of the Sun ≈ 10 kg
Comparisons are much easier to make because we are
dealing with powers of 10

15. 1.1 The realm of Physics
Range of magnitude of quantities in our universe
• State and compare quantities to the nearest order of
magnitude
• State the ranges of magnitude of distances, masses and times
that occur in the universe, from smallest to greatest
• State ratios of quantities as differences of orders of
magnitude
• Estimate approximate values of everyday quantities to one or
two significant figures and/or to the nearest order of
magnitude

16. 1.1 The realm of Physics
• State the ranges of magnitude of distances, masses and times
that occur in the universe, from smallest to greatest

17. 1.1 The realm of Physics
• State the ranges of magnitude of distances, masses and times
that occur in the universe, from smallest to greatest

18. 1.1 The realm of Physics
• State the ranges of magnitude of distances, masses and times
that occur in the universe, from smallest to greatest
Range of Masses / kg
52 Mass of Observable
10 Universe
1030 Mass of the Sun
1024 Mass of the Earth
10-27 Mass of the proton

19. 1.1 The realm of Physics
• State the ranges of magnitude of distances, masses and times
that occur in the universe, from smallest to greatest
Range of Masses / kg
52 Mass of Observable
10 Universe
1030 Mass of the Sun
1024 Mass of the Earth
10-27 Mass of the proton

20. 1.1 The realm of Physics
• State the ranges of magnitude of distances, masses and times
that occur in the universe, from smallest to greatest
Range of Masses / kg
52 Mass of Observable
10 Universe
1030 Mass of the Sun
1024 Mass of the Earth
10-27 Mass of the proton

21. 1.1 The realm of Physics
• State the ranges of magnitude of distances, masses and times
that occur in the universe, from smallest to greatest
Range of Masses / kg
52 Mass of Observable
10 Universe
1030 Mass of the Sun
1024 Mass of the Earth
10-27 Mass of the proton

22. 1.1 The realm of Physics
• State the ranges of magnitude of distances, masses and times
that occur in the universe, from smallest to greatest
Range of Masses / kg
52 Mass of Observable
10 Universe
1030 Mass of the Sun
1024 Mass of the Earth
10-27 Mass of the proton

23. 1.1 The realm of Physics
• State the ranges of magnitude of distances, masses and times
that occur in the universe, from smallest to greatest
Range of Masses / kg Range of Time / s
52 Mass of Observable 17
10 Universe 10 Age of the Universe
1030 Mass of the Sun 109 Typical Human Lifespan
1024 Mass of the Earth 107 1 year
10-27 Mass of the proton 10-19 Passage of light across atom

24. 1.1 The realm of Physics
• State the ranges of magnitude of distances, masses and times
that occur in the universe, from smallest to greatest
Range of Masses / kg Range of Time / s
52 Mass of Observable 17
10 Universe 10 Age of the Universe
1030 Mass of the Sun 109 Typical Human Lifespan
1024 Mass of the Earth 107 1 year
10-27 Mass of the proton 10-19 Passage of light across atom

25. 1.1 The realm of Physics
• State the ranges of magnitude of distances, masses and times
that occur in the universe, from smallest to greatest
Range of Masses / kg Range of Time / s
52 Mass of Observable 17
10 Universe 10 Age of the Universe
1030 Mass of the Sun 109 Typical Human Lifespan
1024 Mass of the Earth 107 1 year
10-27 Mass of the proton 10-19 Passage of light across atom

26. 1.1 The realm of Physics
• State the ranges of magnitude of distances, masses and times
that occur in the universe, from smallest to greatest
Range of Masses / kg Range of Time / s
52 Mass of Observable 17
10 Universe 10 Age of the Universe
1030 Mass of the Sun 109 Typical Human Lifespan
1024 Mass of the Earth 107 1 year
10-27 Mass of the proton 10-19 Passage of light across atom

27. 1.1 The realm of Physics
• State the ranges of magnitude of distances, masses and times
that occur in the universe, from smallest to greatest
Range of Masses / kg Range of Time / s
52 Mass of Observable 17
10 Universe 10 Age of the Universe
1030 Mass of the Sun 109 Typical Human Lifespan
1024 Mass of the Earth 107 1 year
10-27 Mass of the proton 10-19 Passage of light across atom

28. 1.1 The realm of Physics
Range of magnitude of quantities in our universe
• State and compare quantities to the nearest order of
magnitude
• State the ranges of magnitude of distances, masses and times
that occur in the universe, from smallest to greatest
• State ratios of quantities as differences of orders of
magnitude
• Estimate approximate values of everyday quantities to one or
two significant figures and/or to the nearest order of
magnitude

29. 1.1 The realm of Physics
• State ratios of quantities as differences of orders of
magnitude

30. 1.1 The realm of Physics
• State ratios of quantities as differences of orders of
magnitude

31. 1.1 The realm of Physics
• State ratios of quantities as differences of orders of
magnitude
Diameter of Hydrogen atom = 10−10
−15
Diameter of proton = 10
The ratio of the diameter of the atom to its
5
nucleus is 10
The size of the atom is about 100000x bigger
than the nucleus

32. 1.1 The realm of Physics
Range of magnitude of quantities in our universe
• State and compare quantities to the nearest order of
magnitude
• State the ranges of magnitude of distances, masses and times
that occur in the universe, from smallest to greatest
• State ratios of quantities as differences of orders of
magnitude
• Estimate approximate values of everyday quantities to one or
two significant figures and/or to the nearest order of
magnitude

33. 1.1 The realm of Physics
• Estimate approximate values of everyday quantities to one or
two significant figures and/or to the nearest order of
magnitude

34. 1.1 The realm of Physics
• Estimate approximate values of everyday quantities to one or
two significant figures and/or to the nearest order of
magnitude

35. 1.1 The realm of Physics
• Estimate approximate values of everyday quantities to one or
two significant figures and/or to the nearest order of
magnitude
Make an estimation based on values you already familiar
with. Try to eliminate unreasonable answeres.

36. 1.1 The realm of Physics
• Estimate approximate values of everyday quantities to one or
two significant figures and/or to the nearest order of
magnitude
Make an estimation based on values you already familiar
with. Try to eliminate unreasonable answeres.
Let’s look at some sample questions

37. 1.1 The realm of Physics
Example 1:

38. 1.1 The realm of Physics
Example 1:

39. 1.1 The realm of Physics
Example 1:

40. 1.1 The realm of Physics
Example 1:

41. 1.1 The realm of Physics
Example 1:

42. 1.1 The realm of Physics
Example 1:

43. 1.1 The realm of Physics
Example 2:

44. 1.1 The realm of Physics
Example 2:

45. 1.1 The realm of Physics
Example 2:

46. 1.1 The realm of Physics
Example 2:

47. 1.1 The realm of Physics
Example 2:

48. 1.1 The realm of Physics
Example 2:

49. 1.1 The realm of Physics
Example 3:

50. 1.1 The realm of Physics
Example 3:

51. 1.1 The realm of Physics
Example 3:

52. 1.1 The realm of Physics
Example 3:
2
10

53. 1.1 The realm of Physics
Example 3:
2
10 x

54. 1.1 The realm of Physics
Example 3:
2 2
10 x 10

55. 1.1 The realm of Physics
Example 3:
2 2
10 x 10 x

56. 1.1 The realm of Physics
Example 3:
2 2 1
10 x 10 x 10

57. 1.1 The realm of Physics
Example 3:
2 2 1
10 x 10 x 10 x

58. 1.1 The realm of Physics
Example 3:
2 2 1 2
10 x 10 x 10 x 10

59. 1.1 The realm of Physics
Example 3:
2 2 1 2
10 x 10 x 10 x 10 x

60. 1.1 The realm of Physics
Example 3:
2 2 1 2
10 x 10 x 10 x 10 x 102

61. 1.1 The realm of Physics
Example 3:
2 2 1 2
10 x 10 x 10 x 10 x 102 =

62. 1.1 The realm of Physics
Example 3:
2 2 1 2
10 x 10 x 10 x 10 x 102 = 109

63. 1.1 The realm of Physics
Example 3:
2 2 1 2
10 x 10 x 10 x 10 x 102 = 109

64. 1.1 The realm of Physics
Example 3:
2 2 1 2
10 x 10 x 10 x 10 x 102 = 109

65. 1.1 The realm of Physics
Example 3:
2 2 1 2
10 x 10 x 10 x 10 x 102 = 109

66. 1.1 The realm of Physics
Example 4:

67. 1.1 The realm of Physics
Example 4:

68. 1.1 The realm of Physics
Example 4: