JEE Physics Mechanical Properties Of Solids MCQs Set 16

Answer: (a) stress

Explanation:
1. When a body is deformed, an internal restoring force per unit area develops. By definition this is stress.

Teacher's Note:
1. \( S \)
2. \( t \)
3. \( r \)
4. \( e \)
5. \( s \)
6. \( s \)
7.
8. \( i \)
9. \( s \)
10.
11. \( f \)
12. \( o \)
13. \( r \)
14. \( c \)
15. \( e \)
16.
17. \( p \)
18. \( e \)
19. \( r \)
20.
21. \( u \)
22. \( n \)
23. \( i \)
24. \( t \)
25.
26. a
27. \( r \)
28. \( e \)
29. a
30.
31. a
32. \( n \)
33. \( d \)
34.
35. \( i \)
36. \( t \)
37. \( s \)
38.
39. \( S \)
40. I
41.
42. \( u \)
43. \( n \)
44. \( i \)
45. \( t \)
46.
47. \( i \)
48. \( s \)
49.
50. \( N \)
51. /
52. \( m \)
53. \
54. (
55.
56. \( ^ \)
57. 2
58.
59. \
60. )
61.
62. (
63. \( p \)
64. a
65. \( s \)
66. \( c \)
67. a
68. \( l \)
69. )
70. .

Answer: (a) shape

Explanation:
1. A tangential (shearing) force slides layers over each other, changing the shape of the body without changing its volume.

Teacher's Note:
1. \( T \)
2. \( e \)
3. \( n \)
4. \( s \)
5. \( i \)
6. \( l \)
7. \( e \)
8.
9. a
10. \( n \)
11. \( d \)
12.
13. \( c \)
14. \( o \)
15. \( m \)
16. \( p \)
17. \( r \)
18. \( e \)
19. \( s \)
20. \( s \)
21. \( i \)
22. \( v \)
23. \( e \)
24.
25. \( s \)
26. \( t \)
27. \( r \)
28. \( e \)
29. \( s \)
30. \( s \)
31. \( e \)
32. \( s \)
33.
34. \( c \)
35. \( h \)
36. a
37. \( n \)
38. \( g \)
39. \( e \)
40.
41. \( l \)
42. \( e \)
43. \( n \)
44. \( g \)
45. \( t \)
46. \( h \)
47.
48. \( o \)
49. \( r \)
50.
51. \( v \)
52. \( o \)
53. \( l \)
54. \( u \)
55. \( m \)
56. \( e \)
57. ;
58.
59. \( s \)
60. \( h \)
61. \( e \)
62. a
63. \( r \)
64. \( i \)
65. \( n \)
66. \( g \)
67.
68. \( s \)
69. \( t \)
70. \( r \)
71. \( e \)
72. \( s \)
73. \( s \)
74.
75. \( c \)
76. \( h \)
77. a
78. \( n \)
79. \( g \)
80. \( e \)
81. \( s \)
82.
83. \( s \)
84. \( h \)
85. a
86. \( p \)
87. \( e \)
88. .

Answer: (a) yield

Explanation:
1. Beyond the yield point the wire shows a large increase in strain with almost no increase in stress, and the deformation is permanent.

Teacher's Note:
1. \( T \)
2. \( h \)
3. \( e \)
4.
5. \( y \)
6. \( i \)
7. \( e \)
8. \( l \)
9. \( d \)
10.
11. \( p \)
12. \( o \)
13. \( i \)
14. \( n \)
15. \( t \)
16.
17. \( m \)
18. a
19. \( r \)
20. \( k \)
21. \( s \)
22.
23. \( t \)
24. \( h \)
25. \( e \)
26.
27. \( s \)
28. \( t \)
29. a
30. \( r \)
31. \( t \)
32.
33. \( o \)
34. \( f \)
35.
36. \( p \)
37. \( l \)
38. a
39. \( s \)
40. \( t \)
41. \( i \)
42. \( c \)
43.
44. \( b \)
45. \( e \)
46. \( h \)
47. a
48. \( v \)
49. \( i \)
50. \( o \)
51. \( u \)
52. \( r \)
53. .

Answer: (a) modulus of elasticity

Explanation:
1. Within the elastic limit stress divided by strain is a constant of the material, the modulus of elasticity.

Teacher's Note:
1. \( Y \)
2. \( o \)
3. \( u \)
4. \( n \)
5. \( g \)
6. '
7. \( s \)
8. ,
9.
10. \( b \)
11. \( u \)
12. \( l \)
13. \( k \)
14.
15. a
16. \( n \)
17. \( d \)
18.
19. \( s \)
20. \( h \)
21. \( e \)
22. a
23. \( r \)
24.
25. \( m \)
26. \( o \)
27. \( d \)
28. \( u \)
29. \( l \)
30. \( i \)
31.
32. a
33. \( r \)
34. \( e \)
35.
36. a
37. \( l \)
38. \( l \)
39.
40. \( s \)
41. \( t \)
42. \( r \)
43. \( e \)
44. \( s \)
45. \( s \)
46. -
47. \( t \)
48. \( o \)
49. -
50. \( s \)
51. \( t \)
52. \( r \)
53. a
54. \( i \)
55. \( n \)
56.
57. \( r \)
58. a
59. \( t \)
60. \( i \)
61. \( o \)
62. \( s \)
63. .

Answer: (a) Young's modulus

Explanation:
1. \( Y = \dfrac{\text{tensile stress}}{\text{longitudinal strain}} \).

Teacher's Note:
1. \( Y \)
2. \( o \)
3. \( u \)
4. \( n \)
5. \( g \)
6. '
7. \( s \)
8.
9. \( m \)
10. \( o \)
11. \( d \)
12. \( u \)
13. \( l \)
14. \( u \)
15. \( s \)
16.
17. a
18. \( p \)
19. \( p \)
20. \( l \)
21. \( i \)
22. \( e \)
23. \( s \)
24.
25. \( t \)
26. \( o \)
27.
28. \( s \)
29. \( o \)
30. \( l \)
31. \( i \)
32. \( d \)
33. \( s \)
34.
35. \( o \)
36. \( n \)
37. \( l \)
38. \( y \)
39. .

Answer: (a) bulk modulus

Explanation:
1. Fluids cannot sustain shear or tensile stress, but they resist change in volume, so only the bulk modulus applies.

Teacher's Note:
1. \( L \)
2. \( i \)
3. \( q \)
4. \( u \)
5. \( i \)
6. \( d \)
7. \( s \)
8.
9. a
10. \( n \)
11. \( d \)
12.
13. \( g \)
14. a
15. \( s \)
16. \( e \)
17. \( s \)
18.
19. \( h \)
20. a
21. \( v \)
22. \( e \)
23.
24. \( b \)
25. \( u \)
26. \( l \)
27. \( k \)
28.
29. \( m \)
30. \( o \)
31. \( d \)
32. \( u \)
33. \( l \)
34. \( u \)
35. \( s \)
36.
37. \( b \)
38. \( u \)
39. \( t \)
40.
41. \( z \)
42. \( e \)
43. \( r \)
44. \( o \)
45.
46. \( r \)
47. \( i \)
48. \( g \)
49. \( i \)
50. \( d \)
51. \( i \)
52. \( t \)
53. \( y \)
54. .

Answer: (a) compressibility

Explanation:
1. Compressibility is \( k = \dfrac{1}{B} \).

Teacher's Note:
1. A
2.
3. \( l \)
4. a
5. \( r \)
6. \( g \)
7. \( e \)
8.
9. \( b \)
10. \( u \)
11. \( l \)
12. \( k \)
13.
14. \( m \)
15. \( o \)
16. \( d \)
17. \( u \)
18. \( l \)
19. \( u \)
20. \( s \)
21.
22. \( m \)
23. \( e \)
24. a
25. \( n \)
26. \( s \)
27.
28. a
29.
30. \( s \)
31. \( m \)
32. a
33. \( l \)
34. \( l \)
35.
36. \( c \)
37. \( o \)
38. \( m \)
39. \( p \)
40. \( r \)
41. \( e \)
42. \( s \)
43. \( s \)
44. \( i \)
45. \( b \)
46. \( i \)
47. \( l \)
48. \( i \)
49. \( t \)
50. \( y \)
51. .

Answer: (a) Elastic fatigue is the loss of elastic behaviour under repeated alternating deforming forces

Explanation:
1. Repeated stress cycles weaken a material, which is called elastic fatigue.
2. Steel has a larger modulus than copper and is more elastic than rubber.
3. Fluids have only a bulk modulus.

Teacher's Note:
1. \( E \)
2. \( l \)
3. a
4. \( s \)
5. \( t \)
6. \( i \)
7. \( c \)
8. \( i \)
9. \( t \)
10. \( y \)
11.
12. \( i \)
13. \( s \)
14.
15. \( m \)
16. \( e \)
17. a
18. \( s \)
19. \( u \)
20. \( r \)
21. \( e \)
22. \( d \)
23.
24. \( b \)
25. \( y \)
26.
27. \( t \)
28. \( h \)
29. \( e \)
30.
31. \( m \)
32. \( o \)
33. \( d \)
34. \( u \)
35. \( l \)
36. \( u \)
37. \( s \)
38. ,
39.
40. \( n \)
41. \( o \)
42. \( t \)
43.
44. \( b \)
45. \( y \)
46.
47. \( t \)
48. \( h \)
49. \( e \)
50.
51. a
52. \( m \)
53. \( o \)
54. \( u \)
55. \( n \)
56. \( t \)
57.
58. \( o \)
59. \( f \)
60.
61. \( s \)
62. \( t \)
63. \( r \)
64. \( e \)
65. \( t \)
66. \( c \)
67. \( h \)
68. .

Answer: (a) The bulk modulus is relevant for solids, liquids and gases

Explanation:
1. Every state of matter resists a change of volume, so bulk modulus applies to all.
2. A hollow shaft has a larger radius for the same mass and is stronger.
3. Twisting a long rod is easier as the angle of twist grows with length.
4. Gases have zero shear modulus.

Teacher's Note:
1. \( T \)
2. \( o \)
3. \( r \)
4. \( q \)
5. \( u \)
6. \( e \)
7.
8. \( f \)
9. \( o \)
10. \( r \)
11.
12. a
13.
14. \( g \)
15. \( i \)
16. \( v \)
17. \( e \)
18. \( n \)
19.
20. \( t \)
21. \( w \)
22. \( i \)
23. \( s \)
24. \( t \)
25.
26. \( g \)
27. \( r \)
28. \( o \)
29. \( w \)
30. \( s \)
31.
32. a
33. \( s \)
34.
35. \( t \)
36. \( h \)
37. \( e \)
38.
39. \( f \)
40. \( o \)
41. \( u \)
42. \( r \)
43. \( t \)
44. \( h \)
45.
46. \( p \)
47. \( o \)
48. \( w \)
49. \( e \)
50. \( r \)
51.
52. \( o \)
53. \( f \)
54.
55. \( t \)
56. \( h \)
57. \( e \)
58.
59. \( r \)
60. a
61. \( d \)
62. \( i \)
63. \( u \)
64. \( s \)
65.
66. a
67. \( n \)
68. \( d \)
69.
70. \( f \)
71. a
72. \( l \)
73. \( l \)
74. \( s \)
75.
76. \( w \)
77. \( i \)
78. \( t \)
79. \( h \)
80.
81. \( l \)
82. \( e \)
83. \( n \)
84. \( g \)
85. \( t \)
86. \( h \)
87. .

Answer: (c) remains the same

Explanation:
1. Young's modulus is a property of the material and does not depend on the dimensions of the wire.

Teacher's Note:
1. \( D \)
2. \( i \)
3. \( m \)
4. \( e \)
5. \( n \)
6. \( s \)
7. \( i \)
8. \( o \)
9. \( n \)
10. \( s \)
11.
12. \( c \)
13. \( h \)
14. a
15. \( n \)
16. \( g \)
17. \( e \)
18.
19. \( t \)
20. \( h \)
21. \( e \)
22.
23. \( e \)
24. \( x \)
25. \( t \)
26. \( e \)
27. \( n \)
28. \( s \)
29. \( i \)
30. \( o \)
31. \( n \)
32.
33. \( b \)
34. \( u \)
35. \( t \)
36.
37. \( n \)
38. \( o \)
39. \( t \)
40.
41. \( t \)
42. \( h \)
43. \( e \)
44.
45. \( m \)
46. \( o \)
47. \( d \)
48. \( u \)
49. \( l \)
50. \( u \)
51. \( s \)
52. .

Answer: (a) zero

Explanation:
1. Liquids have no definite shape and cannot sustain shear stress, so the modulus of rigidity is zero.

Teacher's Note:
1. \( Z \)
2. \( e \)
3. \( r \)
4. \( o \)
5.
6. \( r \)
7. \( i \)
8. \( g \)
9. \( i \)
10. \( d \)
11. \( i \)
12. \( t \)
13. \( y \)
14.
15. \( i \)
16. \( s \)
17.
18. \( w \)
19. \( h \)
20. \( y \)
21.
22. \( l \)
23. \( i \)
24. \( q \)
25. \( u \)
26. \( i \)
27. \( d \)
28. \( s \)
29.
30. \( f \)
31. \( l \)
32. \( o \)
33. \( w \)
34. .

Answer: (b) bulk modulus

Explanation:
1. Gases resist volume change, so they have a bulk modulus, but they have no Young's or shear modulus.

Teacher's Note:
1. \( O \)
2. \( n \)
3. \( l \)
4. \( y \)
5.
6. \( t \)
7. \( h \)
8. \( e \)
9.
10. \( b \)
11. \( u \)
12. \( l \)
13. \( k \)
14.
15. \( m \)
16. \( o \)
17. \( d \)
18. \( u \)
19. \( l \)
20. \( u \)
21. \( s \)
22.
23. \( i \)
24. \( s \)
25.
26. \( c \)
27. \( o \)
28. \( m \)
29. \( m \)
30. \( o \)
31. \( n \)
32.
33. \( t \)
34. \( o \)
35.
36. a
37. \( l \)
38. \( l \)
39.
40. \( t \)
41. \( h \)
42. \( r \)
43. \( e \)
44. \( e \)
45.
46. \( s \)
47. \( t \)
48. a
49. \( t \)
50. \( e \)
51. \( s \)
52.
53. \( o \)
54. \( f \)
55.
56. \( m \)
57. a
58. \( t \)
59. \( t \)
60. \( e \)
61. \( r \)
62. .

Answer: (d) become four times

Explanation:
1. \( U = \dfrac{1}{2}T\,\Delta l \) and \( \Delta l \propto T \), so \( U \propto T^2 \).
2. Doubling the tension makes \( U \) four times as large.

Teacher's Note:
1. \( E \)
2. \( n \)
3. \( e \)
4. \( r \)
5. \( g \)
6. \( y \)
7.
8. \( s \)
9. \( t \)
10. \( o \)
11. \( r \)
12. \( e \)
13. \( d \)
14.
15. \( d \)
16. \( e \)
17. \( p \)
18. \( e \)
19. \( n \)
20. \( d \)
21. \( s \)
22.
23. \( o \)
24. \( n \)
25.
26. \( t \)
27. \( h \)
28. \( e \)
29.
30. \( s \)
31. \( q \)
32. \( u \)
33. a
34. \( r \)
35. \( e \)
36.
37. \( o \)
38. \( f \)
39.
40. \( t \)
41. \( h \)
42. \( e \)
43.
44. \( f \)
45. \( o \)
46. \( r \)
47. \( c \)
48. \( e \)
49. .

Answer: (c) do not obey Hooke's law

Explanation:
1. Elastomers such as rubber can be stretched to large strains, and their stress-strain curve is not a straight line, so they do not obey Hooke's law.

Teacher's Note:
1. \( R \)
2. \( u \)
3. \( b \)
4. \( b \)
5. \( e \)
6. \( r \)
7.
8. \( i \)
9. \( s \)
10.
11. a
12. \( n \)
13.
14. \( e \)
15. \( l \)
16. a
17. \( s \)
18. \( t \)
19. \( o \)
20. \( m \)
21. \( e \)
22. \( r \)
23. .

Answer: (c) infinity

Explanation:
1. \( \eta = \dfrac{F}{A\theta} \). \( A \) perfectly rigid body cannot be sheared, so \( \theta = 0 \) and \( \eta \) is infinite.

Teacher's Note:
1. A
2.
3. \( p \)
4. \( e \)
5. \( r \)
6. \( f \)
7. \( e \)
8. \( c \)
9. \( t \)
10. \( l \)
11. \( y \)
12.
13. \( r \)
14. \( i \)
15. \( g \)
16. \( i \)
17. \( d \)
18.
19. \( b \)
20. \( o \)
21. \( d \)
22. \( y \)
23.
24. \( i \)
25. \( s \)
26.
27. a
28. \( n \)
29.
30. \( i \)
31. \( d \)
32. \( e \)
33. a
34. \( l \)
35. \( i \)
36. \( s \)
37. a
38. \( t \)
39. \( i \)
40. \( o \)
41. \( n \)
42.
43. \( w \)
44. \( i \)
45. \( t \)
46. \( h \)
47.
48. \( i \)
49. \( n \)
50. \( f \)
51. \( i \)
52. \( n \)
53. \( i \)
54. \( t \)
55. \( e \)
56.
57. \( m \)
58. \( o \)
59. \( d \)
60. \( u \)
61. \( l \)
62. \( i \)
63. .

Answer: (c) C

Explanation:
1. \( U = \dfrac{F^2l}{2AY} \propto \dfrac{l}{d^2} \).
2. A: \( 1, B \): \( 2/4 = 0.5, C \): \( 2, D \): \( 1/4 = 0.25 \). The largest is \( C \).

Teacher's Note:
1. \( F \)
2. \( o \)
3. \( r \)
4.
5. \( t \)
6. \( h \)
7. \( e \)
8.
9. \( s \)
10. a
11. \( m \)
12. \( e \)
13.
14. \( f \)
15. \( o \)
16. \( r \)
17. \( c \)
18. \( e \)
19. ,
20.
21. a
22.
23. \( l \)
24. \( o \)
25. \( n \)
26. \( g \)
27. \( e \)
28. \( r \)
29.
30. a
31. \( n \)
32. \( d \)
33.
34. \( t \)
35. \( h \)
36. \( i \)
37. \( n \)
38. \( n \)
39. \( e \)
40. \( r \)
41.
42. \( w \)
43. \( i \)
44. \( r \)
45. \( e \)
46.
47. \( s \)
48. \( t \)
49. \( o \)
50. \( r \)
51. \( e \)
52. \( s \)
53.
54. \( m \)
55. \( o \)
56. \( r \)
57. \( e \)
58.
59. \( e \)
60. \( n \)
61. \( e \)
62. \( r \)
63. \( g \)
64. \( y \)
65. .

Answer: (c) Tangential stress

Explanation:
1. Tangential (shearing) stress changes the shape of a body without changing its volume.

Teacher's Note:
1. \( N \)
2. \( o \)
3. \( r \)
4. \( m \)
5. a
6. \( l \)
7.
8. \( s \)
9. \( t \)
10. \( r \)
11. \( e \)
12. \( s \)
13. \( s \)
14. \( e \)
15. \( s \)
16.
17. \( c \)
18. \( h \)
19. a
20. \( n \)
21. \( g \)
22. \( e \)
23.
24. \( l \)
25. \( e \)
26. \( n \)
27. \( g \)
28. \( t \)
29. \( h \)
30.
31. \( o \)
32. \( r \)
33.
34. \( v \)
35. \( o \)
36. \( l \)
37. \( u \)
38. \( m \)
39. \( e \)
40. ;
41.
42. \( s \)
43. \( h \)
44. \( e \)
45. a
46. \( r \)
47.
48. \( c \)
49. \( h \)
50. a
51. \( n \)
52. \( g \)
53. \( e \)
54. \( s \)
55.
56. \( s \)
57. \( h \)
58. a
59. \( p \)
60. \( e \)
61. .

Answer: (b) lateral strain to longitudinal strain

Explanation:
1. Poisson's ratio \( \sigma = \dfrac{\text{lateral strain}}{\text{longitudinal strain}} \).

Teacher's Note:
1. I
2. \( t \)
3.
4. \( i \)
5. \( s \)
6.
7. a
8.
9. \( p \)
10. \( u \)
11. \( r \)
12. \( e \)
13.
14. \( n \)
15. \( u \)
16. \( m \)
17. \( b \)
18. \( e \)
19. \( r \)
20.
21. \( w \)
22. \( i \)
23. \( t \)
24. \( h \)
25.
26. \( n \)
27. \( o \)
28.
29. \( u \)
30. \( n \)
31. \( i \)
32. \( t \)
33. .

Answer: (c) a body that is elastic below its yield point and plastic beyond it

Explanation:
1. For small stress steel returns to its original shape (elastic).
2. Beyond the yield point it deforms permanently (plastic).

Teacher's Note:
1. \( R \)
2. \( e \)
3. a
4. \( l \)
5.
6. \( m \)
7. a
8. \( t \)
9. \( e \)
10. \( r \)
11. \( i \)
12. a
13. \( l \)
14. \( s \)
15.
16. \( s \)
17. \( h \)
18. \( o \)
19. \( w \)
20.
21. \( b \)
22. \( o \)
23. \( t \)
24. \( h \)
25.
26. \( b \)
27. \( e \)
28. \( h \)
29. a
30. \( v \)
31. \( i \)
32. \( o \)
33. \( u \)
34. \( r \)
35. \( s \)
36.
37. \( d \)
38. \( e \)
39. \( p \)
40. \( e \)
41. \( n \)
42. \( d \)
43. \( i \)
44. \( n \)
45. \( g \)
46.
47. \( o \)
48. \( n \)
49.
50. \( t \)
51. \( h \)
52. \( e \)
53.
54. \( s \)
55. \( t \)
56. \( r \)
57. \( e \)
58. \( s \)
59. \( s \)
60. .

Answer: (d) All of these

Explanation:
1. Hammering, annealing, temperature change and impurities all alter the modulus of elasticity.

Teacher's Note:
1. \( T \)
2. \( e \)
3. \( m \)
4. \( p \)
5. \( e \)
6. \( r \)
7. a
8. \( t \)
9. \( u \)
10. \( r \)
11. \( e \)
12.
13. \( g \)
14. \( e \)
15. \( n \)
16. \( e \)
17. \( r \)
18. a
19. \( l \)
20. \( l \)
21. \( y \)
22.
23. \( l \)
24. \( o \)
25. \( w \)
26. \( e \)
27. \( r \)
28. \( s \)
29.
30. \( t \)
31. \( h \)
32. \( e \)
33.
34. \( m \)
35. \( o \)
36. \( d \)
37. \( u \)
38. \( l \)
39. \( u \)
40. \( s \)
41. .

Answer: (d) Steel

Explanation:
1. Elasticity is measured by the modulus of elasticity. Steel has the highest Young's modulus (about \( 2\times10^{11} N/m ^2 \)) among these.

Teacher's Note:
1. A
2.
3. \( s \)
4. \( t \)
5. \( i \)
6. \( f \)
7. \( f \)
8. \( e \)
9. \( r \)
10.
11. \( m \)
12. a
13. \( t \)
14. \( e \)
15. \( r \)
16. \( i \)
17. a
18. \( l \)
19.
20. \( i \)
21. \( s \)
22.
23. \( m \)
24. \( o \)
25. \( r \)
26. \( e \)
27.
28. \( e \)
29. \( l \)
30. a
31. \( s \)
32. \( t \)
33. \( i \)
34. \( c \)
35. :
36.
37. \( i \)
38. \( t \)
39.
40. \( d \)
41. \( e \)
42. \( f \)
43. \( o \)
44. \( r \)
45. \( m \)
46. \( s \)
47.
48. \( l \)
49. \( e \)
50. \( s \)
51. \( s \)
52.
53. \( u \)
54. \( n \)
55. \( d \)
56. \( e \)
57. \( r \)
58.
59. a
60.
61. \( g \)
62. \( i \)
63. \( v \)
64. \( e \)
65. \( n \)
66.
67. \( s \)
68. \( t \)
69. \( r \)
70. \( e \)
71. \( s \)
72. \( s \)
73. .

Answer: (a) ductile

Explanation:
1. A ductile material shows a large plastic range between the elastic limit and fracture. \( A \) brittle material breaks soon after the elastic limit.

Teacher's Note:
1. \( C \)
2. \( o \)
3. \( p \)
4. \( p \)
5. \( e \)
6. \( r \)
7.
8. a
9. \( n \)
10. \( d \)
11.
12. \( g \)
13. \( o \)
14. \( l \)
15. \( d \)
16.
17. a
18. \( r \)
19. \( e \)
20.
21. \( d \)
22. \( u \)
23. \( c \)
24. \( t \)
25. \( i \)
26. \( l \)
27. \( e \)
28. .

Answer: (a) \( \dfrac{\text{N}}{\text{m}^2} \)

Explanation:
1. Stress is force per unit area, so its SI unit is \( N/m ^2 \) (pascal). The other units are not SI.

Teacher's Note:
1. \( D \)
2. \( y \)
3. \( n \)
4. \( e \)
5.
6. \( p \)
7. \( e \)
8. \( r \)
9.
10. \( s \)
11. \( q \)
12. \( u \)
13. a
14. \( r \)
15. \( e \)
16.
17. \( c \)
18. \( e \)
19. \( n \)
20. \( t \)
21. \( i \)
22. \( m \)
23. \( e \)
24. \( t \)
25. \( r \)
26. \( e \)
27.
28. \( i \)
29. \( s \)
30.
31. \( t \)
32. \( h \)
33. \( e \)
34.
35. \( C \)
36. \( G \)
37. \( S \)
38.
39. \( u \)
40. \( n \)
41. \( i \)
42. \( t \)
43. .