1. The document provides information on various physics concepts including units of measurement, vectors, scalars, and prefixes used in the International System of Units (SI). 2. Examples are given for converting between different units such as centimeters to meters, grams to kilograms, and watts to kilowatts. Formulas are also provided for calculating quantities like density, speed, and acceleration. 3. SI prefixes are defined for powers of ten from yotta to micro. Guidelines are given for writing values with units clearly and unambiguously.

1. 1

2. 


2

3. 3

4. 1. kg Pa m m2
N
4

5. 2.
‘L’
m( ) s( )
Pa ( ) lm ( )
5

6. 3.
28 cm
28 cms
6

7. 4.
”Its length is 75 cm.” ”It is 75 cm long.”
”It is 75 cm. long”
7

8. 5.
( )
Nm ‧
ms-1 ms-1
8

9. 6.
/
m/s , ms-1 m
S
/ ‧ -1
m/s2 m‧s-2 m/s/s
9

10. 7.
/ cd/m2
/ m2
10

11. 8.
Vmax( ) =1000 V
V=1000 Vmax
11

12. 9.
120 120
min m
12

13. 1.
mm( ) pm( ) G( )
THz( )
13

14. 2. Y (yotta) Z (zetta) E (exa) P
(peta) T (tera) G (giga) M (mega)
14

15. 3.
2.3 cm3= 2.3 (cm)3=2.3 (10-2 m)3
= 2.3 10-6 m3
1 cm-1=1 (cm)-1=1(10-2 m)-1=102 m-1
15

16. 4.
nm ( )
mm ( )
16

17. 5.
kg
k 103 g
1 100
17

18. 6.
10 kV/mm
10 MV/m
18

19. 7.
( )
10
kV‧s 10 MV‧ms
19

20. 8.
5 106/ m3，
5M / m3
20

21. 1.
0,1,2,3,4,5,6,7,8,9
, , , , , , , , ,
,
50 A 50
A
A 21

22. 2.
100 m
100m
22

23. 3. 0.1 1000
0.00952 g 9.52 mg
2703 W 2.703 kW
23

24. 4.
10.234 m
10 m 23 cm 4 mm
24

25. 5.
60 6
712 m 712
7 12 m 2543 kW 2543
2
5 4 3
25

26. 26

27. 1.
2. SI
3.
27

28. kg
g
mg
g lb OZ SI
gm
28

29. X
29

30. X
30

31. X
31

32. X
32

33. 33

34. 34

35. 35

36. 36

37. m
cm
mm “ inch
m SI
nm
37

38. X
38

39. X
39

40. X
40

41. 産品資訊
尺寸：101 × 43.9 × 19 毫米
·
系統：雙頻GSM900/1800
·
顔色：薄霧黑、冰霜白
·
顯示幕大小：30 × 24 毫米
·
（註：大陸標示提供參考）
41

42. 30 cm x 30 cm 1 x1
m2
cm2 3 x 3.5
SI
42

43. X
43

44. 44

45. l L
ml
mL c.c.
20 cm x 30cm x 40cm SI
m3 M3 CM3
cm3
45

46. X
46

47. X
47

48. X
48

49. X
49

50. O
50

51. O
51

52. 52

53. product description &
measurements
Ticking: 76 % cotton, 24 %
polyester
Length: 74 3/8 "
Width: 53 1/8 "
Thickness: 4 3/4 "
Length: 189 cm
Width: 135 cm
Thickness: 12 cm
53

54. 54

55. : /
/ / /
: /
/ / / /
55