1. Work and energy are related concepts in physics. Work is done when a force causes an object to move through a distance. 2. Energy exists in various forms including kinetic energy (Ek) which is the energy of motion and depends on an object's mass and speed. 3. Potential energy (Ep) is stored energy due to an object's position or state, such as a mass elevated against gravity, and depends on mass, gravitational field strength, and height.

1. (Work and Energy)
Enter
F F F F

2. Glossary About
1.
F F
2.
F F (J)
3.
F
4.
5. W = F. s
6. F F F
7. F F W= F F (J)
8. F
F = F F (N)
S = F F (m)
9.
1 of 12

3. Glossary About
1. 1
2.
3. F
4.
S
5.
6. F F F
7. F F
8. F
W = F. S
9.
2 of 12

4. Glossary About
Code: 1.3
1. 2
2. F
3.
θ
4.
5. S
6. F F F
7. F F
8. F
θ
W = Fcosθ. S
9.
W = FScosθθ
3 of 12

5. Glossary About
1. 3
F
2.
3.
4. SS
5.
6. F F F
7. F F
8. F
W=0
9.
4 of 12

6. Glossary About
1. 4
2. F
3.
4.
S
5.
6. F F F
7. F F
8. F
W= F
9.
5 of 12

7. Glossary About
1. F
2.
3.
4. 200
5. F 10
6. F F F
7. F F
8. F
9.
6 of 12

8. Glossary About
1.
2. F F
F F F
3.
(F) F 10
4. F
5.
6. F F F
7. F F
W = ( Fcos90 ) ( S )
8. F
= ( 200 )( 0 ) ( 10 )
9.
= 0
7 of 12

9. Glossary About
1.
2. Section 1 Title
3.
5N
F
4.
5.
F
6. F F F
3m
7. F F
8. F
4m
9.
8 of 12

10. Glossary About
1.
2. Section 1 Title
1. F (F) F F F
3. 2. F ∴f=0
4. 3. F 5
W = F. S
5.
W = F(5) . (1)
6. F F F F F
F θ
F = mgsinθ ,( F = )
7. F F F F (1)
8. F θ
W = ( mgsinθ ) ( 5 )
= ( 5 ) ( 3/5 ) ( 5 )
9. = 15 J
9 of 12

11. Glossary About
1.
F
Section 1 Title F F 52 kg F
2. 1 km 37
3. F F F F
F 0.4m/sF 2 = 10
g
4. .
5. . F F F
6. F F F
7. F F
T
8. F °
37°
W f
9. N µ = 0.4
1 km
10 of 12

12. Glossary About
1.
2. Section 1 Title
3.
4.
Tcos37
W = ( Tcos37 ) ( S )
5.
W = ( 160 ) ( 1 x 103 )
6. F F F
W = 1.6 x 105 J
7. F F
8. F
9.
11 of 12

13. Glossary About
1.
2. Section 1 Title
3. f
4. W = -f.S
5. W = - ( 160 )( 1 x 103 )
6. F F F W = - 1.6 x 105 J
7. F F
8. F
9.
12 of 12

14. Glossary About
1.
2.
3.
4.
F
5.
F F
6. F F F
7. F F
W = F. S
8. F (W) F (F)
9. (S) F
1 of 8

15. Glossary About
1.
2. F F (F)
3. (S) F
4. F
5.
6. F F F
7. F F
8. F
9.
2 of 8

16. Glossary About
1.
2.
3. F (N)
4.
5.
6. F F F
7. F F S (m)
8. F
= F
9.
3 of 8

17. Glossary About
1.
2.
3. F (N)
4.
5.
6. F F F
S (m)
7. F F
8. F
= F
9.
4 of 8

18. Glossary About
1.
2. F (N)
3.
4.
5. S (m)
6. F F F = F∆S1+ F ∆S2 + F ∆S3+..... F ∆Sn
1 2 3 n
7. F F (F1 + F2 + F3 + ... + Fn )S
=
8. F n
9. = x
5 of 8

19. Glossary About
1. F
2.
F F
3.
4.
F (N)
5.
6. F F F
10
7. F F
(1) (2) (3)
8. F S (m)
0 5 25 60
9.
6 of 8?

20. Glossary About
Code: 2.6
1.
2.
3. = . . F
4. = . .
5. = ½( F F )( )
6. F F F = ½( 60 +20 ) ( 10 )
7. F F = 400
8. F
9.
7 of 8

21. Glossary About
Code: 2.6
1.
2.
3.
= F
4.
= . . (1) + . . (2) + . . ( 3 )
5.
= ½( 5 )(10) + (20)(10) + ½(35)(10)
6. F F F
= 25 + 200 + 175
7. F F = 400
8. F
9.
8 of 8

22. Glossary About
1.
2.
3.
F
4.
F F F ( Watt )
5.
F
6. F F F =
F F F
7. F F
8. F
9.
1 of 8

23. Code: 3.2
Glossary About
1.
2.
W
3.
p=
4.
t
5.
6. F F F P F F ( Watt )
7. F F W F F (J)
8. F
t F F F (s)
9.
2 of 8

24. Code: 3.3
Glossary About
1.
F
2.
F F
Section 3 Title
3.
4.
W F.s
5. P = =
6. F F F t t
7. F F
8. F P = F.v
9.
3 of 8

25. Code: 3.4
Glossary About
1.
2.
3.
P = F.v
4.
5. P F F (Watt)
6. F F F F F (N)
7. F F v F
8. F F (m/s)
9.
4 of 8

26. Glossary About
1.
2.
3.
750
4.
F 5
5.
25 F
6. F F F
F
7. F F
8. F
9.
5 of 8

27. Code: 3.6
Glossary About
1.
W
2. p =
3. t
4. W = F.s
5. = mg.s
6. F F F = ( 750 )(5) = 3750 J
7. F F
3750
8. F ∴ p= = 150 Watt
9.
25
6 of 8

28. Glossary About
1.
2.
F 3 F
3.
F F F F
4.
9 F
5.
F F F
6. F F F
7. F F
8. F
9.
7 of 8

29. Glossary About
1.
2. P = F.v
3.
 9x103 
4. 3 ×103 = F  
5.  60x60 
6. F F F  3x10 x60x60 
3
F=  3 
7. F F 9x10
 
8. F
9. F = 1200 N
8 of 8

30. Glossary About
1.
2.
3.
( Energy )
4.
F F F
5. F
6. F F F F
F F F
7. F F
F F F
8. F F 2
F F
9.
1 of 4

31. Glossary About
1.
2.
3.
4.
F F ( Ek )
5. 1
E = mv 2
6. F F F
2
7. F F
Ek = F F (J)
8. F m = F ( kg )
9. v = F F ( m/s )
2 of 4

32. Glossary About
1.
F
2.
3. 0.002 kg F
4. 0.80 m F 400 m/s
5. F
6. F F F
7. F F
8. F
9.
3 of 4

33. Glossary About
1.
2.
3. 1
E = mv 2
4. 2
5.
1
E = ( 0.002 )( 400 )
2
6. F F F
7. F F
2
8. F
E = 160 J
9.
4 of 4

34. Glossary About
Code: 5.1
1.
2.
3.
4.
5.
F F
6. F F F
F F
7. F F
F F F
8. F
9.
1 of 6

35. Glossary About
1.
W = ∆E k
2.
3.
W =
4.
F (J)
5. ∆E k = F
6. F F F
F (J)
7. F F
8. F
9.
2 of 6

36. Glossary About
1.
2.
3. F 800 F F
4. 72 F F F
5. F F 10
6. F F F F F F F
7. F F
8. F
9.
3 of 6

37. Glossary About
1.
2.
W = ∆E k
3.
∆E k = E k2 - E k1
4. 1
∆E k = 0 - ( 800 ) ( 72x103 /3600) 2
5. 2
6. F F F ∆E k = - 1.6x104 J
7. F F
W = - 1.6x104 J
8. F F F F
9. 1.6 x 104
4 of 6

38. Glossary About
1.
2.
3.
20.0 F F
4.
F
5.
3.0
6. F F F
7. F F
8. F
9.
5 of 6

39. Glossary About
1.
W = ∆E k
2.
∆E k = E k2 - E k1
3.
∆E k = 0 , (E k2 = E k1 )
4.
W = ( F - f )s
5. W = Fs - fs = WF - Wf
6. F F F WF - Wf = 0 , (W = Ek )
7. F F WF = Wf
8. F
Fs = Wf = (20)(3) = 60 J
9. F 60
6 of 6

40. Glossary About
Code: 6.1
1.
2.
3.
4. F
5. F
6. F F F F F
7. F F
F F F
8. F
F F F
F
9.
1 of 4

41. Glossary About
1.
W = F.s ; F = mg , s = h
2.
W = mg.h
3.
W = Ep
4.
∴ Ep = mgh
5.
6. F F F
Ep F F F F (J)
7. F F m F ( kg )
8. F
g F F F F
F ( m/s2 )
9. h F (m)
2 of 4

42. Glossary About
1.
2.
3.
600
4.
F F
5.
10
6. F F F
F F F
7. F F
F 10
8. F
9.
3 of 4

43. Glossary About
1.
2.
3. E p = mgh
4.
5.
E p = ( 600 )( 10 )
6. F F F 3
E p = 6x10 J
7. F F
8. F
F F F F 10
F 6x103
9.
4 of 4

44. Glossary About
1.
2. Section 7 Title
3.
F F F
4.
F
5.
F
6. F F F
7. F F
8. F
9.
1 of 7

45. Glossary About
1.
2. Section 7 Title
F ∝ x
3.
4. F = kx
5.
6. F F F
F (N)
7. F F
k F ( N/m )
8. F
x (m)
9.
2 of 7

46. Glossary About
1. W = F. s , F =
2.
0 + F
3. W = X
2
4.
1
5. W = F x
2
6. F F F 1
W = kx x
7. F F 2
1
8. F
W = k x2
2
9.
3 of 7

47. Glossary About
1.
F
2.
x F 1 2
kx
3. 2
4. F
5.
6. F F F
1 2
7. F F EP = kx
8. F 2
9.
4 of 7

48. Glossary About
1.
2.
3. F F 150
4. F
5. . F
6. F F F 0.25
7. F F . F F
8. F 0.25
9.
5 of 7

49. Glossary About
1.
2. Section 7 Title
3. F = kx
4.
5. F = ( 150 )( 0.25 )
6. F F F F = 37.5 N
7. F F
8. F
9.
6 of 7

50. Glossary About
1.
2.
3. 1
4.
EP = k.x 2
2
5.
1
6. F F F EP = (150)(0.25) 2
2
7. F F
8. F
EP = 4.6875 J
9.
7 of 7

51. Glossary About
1.
2.
3.
4.
5.
6. F F F
7. F F
F
8. F
F
9.
1 of 7

52. Glossary About
1. F A F
D
F
2.
F B F
3. F
C F C F
4.
F
5. F D F
B F
6. F F F
F A F
7. F F F F F F
F F A F
8. F F F F F
A
F F
9.
2 of 7

53. Glossary About
1.
2.
3.
4.
5. F
6. F F F
F
7. F F
F
8. F
9.
3 of 7

54. Glossary About
1. F F A,B,C D
F F F F
2. (EP+EK) D
F F A F
3. 10 F F B,C D
F 10 F
4. F F F (EP+EK) C
F
5.
F A F F 0
6. F F F F F F 10 F 10
F B F (EP+EK) B
7. F F F F F F 10
F C F
8. F F F F F 10 (EP+EK) A
F F F 10
9. F F F F 10
4 of 7

55. Glossary About
1.
2. (EP+EK)
3.
F 50.0
4.
196
5.
F
6. F F F
F F
F
7. F F
8. F
9.
5 of 7

56. Code: 8.6
Glossary About
1. F F
2. E P = mgh
3. E P = (50)(10)(196)
4. E P = 9.8x104 J
5. 1
Ek = mv 2
6. F F F 2
1
7. F F Ek = ( )(50) (0)2
2
8. F Ek = 0 J
9. ∴ F EP + Ek = 9.8x104 J
6 of 7

57. Glossary About
1.
2.
3.
4. F F
5. F F F F F
6. F F F F
7. F F F F F
8. F F F
9.
7 of 7

58. Glossary About
1.
2.
3.
4.
5.
F F
6. F F F F=
F F
7. F F
8. F
9.
1 of 13

59. Glossary About
1.
2.
3. F =1 F
4. 100 %
5.
6. F F F
F <1
7. F F
F F
8. F
100 %
9.
2 of 13

60. Glossary About
1.
2.
F F
3.
4.
40 N s
5.
6. F F F
7. F F
8. F
s/2
6 kg
9.
3 of13

61. Glossary About
1.
2. 1. F
3. W = Fs
4. F F W = (60)(s/2)
5. F F (s/2)
6. F F F
2. F
7. F F W = Fs
8. F F F W = (40)s
9.
4 of 13

62. Glossary About
1. F
2. = X 100 %
F
3.
4. s
F (60)  
5. F
=  2  ×100%
6. F F F (40)s
7. F F
= 75 %
8. F
9.
5 of 13

63. Glossary About
1.
2.
F F
3.
F F
4.
5.
2N
6. F F F
7. F F
3N
8. F
°
30°
9.
6 of 13

64. Glossary About
1.
2.
3. 1. F
4.
5. W = Fs
6. F F F F F W = (2)L
7. F F F F
8. F (L)
9.
7 of 13

65. Glossary About
1.
2.
2. F
3.
F
4.
W = mgh
5.
F F W = (3)(Lsin 30)
6. F F F
F F
7. F F
( Lsin30 )
8. F
9.
8 of 13

66. Glossary About
1.
2.
3. (3)Lsin30
= X 100 %
4. (2)L
F
5. F
6. F F F
= 75 %
7. F F
8. F
9.
9 of 13

67. Glossary About
1.
2.
F F
3.
F=1N
4. 10 kg
0.5 m
5.
6. F F F
7. F F
8. F
9. F F 1
10 of 13

68. Glossary About
1.
2. 1. F
3. W = Fs
4. F F W = (1)2πr ,( π
(1
5. ≈3)
6. F F F F F
7. F F F
8. F W = (1)(2)(3)(0.5)
(1)(2)(3)(0
9. = 3
11 of 13

69. Glossary About
1.
2. 2. F
3. 1 1
4. W = mgh
5. F F 1
6. F F F = 0.01 m
7. F F F F W=
8. F (10)(10)(0.01) =1
9.
12 of 13

70. Glossary About
1.
= F X 100 %
2.
F
3.
4.
1
5. = 100%
3
6. F F F
7. F F
= 33.33 %
8. F
9.
13 of 13

71. Back
F F F F
F F F
F
F( ) F F . (
F1 N.m ) (J)
F F F
F2 F
F F F(W)
F3 F F
F F
F F F2
F F F
F F F
F

72. Back
F F F F F
F F F F F F
F F F F F F
F
F1
F F F
F2 F F F
F F F F F
F3 F F
F F F F F
F
F F F F F
F F F F F F F
F
F

73. Back
F
1.
F1
F2
2.
F F
F3
3. F F F
F
F
F

74. Back
F
F F F
F1
F F
FF F F
F2 F
F3 F
F
F
F F
F F

75. Back
F F F
F1 F F
F F F
F2
F F F F
F3 F F F F F F
F F F
F F F F F F
F

76. Back
F F
F F
F1 F F
F2
F F
F3
F F F
F
F

77. Back
F F F
F
F1
F2
F
F3 F F
F F F
F F
F
F
F

78. Back
(2548). F . : F
F .F
F
F1
F2
F3
F
F

79. Back
F
F1
F2 F F F
F3 F
F
F 1
F