Science 30 January 2000 Diploma Examination
Science 30 January 2000 Diploma Examination Science 30 January 2000 Diploma Examination
January 2000 SA - Sample Answer The force of a field decreases with distance. If the distance is 2X the force will be onequarter. If the distance is 3X the force will be one-ninth etc. Score 4 Standard of Excellence 3 2 Acceptable Standard January 2000 SA - Scoring Guide Scoring Descriptions The response reflects an accurate understanding of field strength. The diagrams are appropriate to the concept of field theory. The response reflects an adequate understanding of field strength. The diagrams apply to the concept of field theory. The response reflects a sketchy understanding of field strength. The diagrams generally apply to the to the concept of field theory. The response reflects a poor understanding of field strength. The diagrams do not apply to the concept of field theory. 1 0 The response does not address any of the major points of the question at an appropriate level for a 30-level course. 02/08/00
January 2000 LA 1 - Sample Answer a. I would cross the untreated males with resistant females. The offspring would be treated with the pesticide to see how many are resistant. The following cross would occur if the untreated moths were heterozygous and the resistant moths were homozygous recessive. About half of the offspring would be resistant. b. An insecticide should not kill organisms it is not intended to kill. Beneficial insects and birds should be protected. This will minimize the damage to the ecosystem. The insecticide should break down quickly in the environment so that it does not accumulate in the tissue of other animals. Also the insecticide should not move easily to areas away from where it is being used. This will protect other organisms from its effects. The insecticide should not be toxic to humans and it would also be desirable that it be inexpensive and easy to apply. January 2000 LA 1 - Scoring Guide SCORE 4 Standard of Excellence 3 2 Acceptable Standard 1 0 NR SCORING DESCRIPTIONS The response is complete, well organized, and reflects thorough understanding and logical consistency of thought. The description of the experiment is logical and realistic. The expected results closely match the design of the experiment. Two or three desirable characteristics of an insecticide are accurately and completely described. The response is mostly complete, organized, and reflects correct understanding. The description of the experiment is logical. The expected results mostly match the design of the experiment. Two or three desirable characteristics of an insecticide are accurately described. The response is organized, and is generally logical and consistent. The description of the experiment is adequate. The expected results generally match the design of the experiment. One or two desirable characteristics of an insecticide are described. The response is incomplete, disorganized, and reflects poor understanding. The description of the experiment is not adequate. The expected results don't match the design of the experiment. Desirable characteristics of an insecticide are lacking. The response does not address any of the major points of the question at an appropriate level for a 30-level course. No response. 02/08/00
- Page 1 and 2: cience 30 Science 30 Science 30 Sci
- Page 3 and 4: Multiple Choice • Decide which of
- Page 5 and 6: Personnel in a medical clinic must
- Page 7 and 8: - - Use the following information t
- Page 9 and 10: The exploration of space adds to ou
- Page 11 and 12: Use the following information to an
- Page 13 and 14: Use the following information to an
- Page 15 and 16: Use the following information to an
- Page 17 and 18: Numerical Response 6. The pH of a w
- Page 19 and 20: The expedition boarded a small subm
- Page 21 and 22: 30. As current passes through a lig
- Page 23 and 24: Use the following information to an
- Page 25 and 26: Use the following information to an
- Page 27 and 28: Use the following information to an
- Page 29 and 30: 39. The pesticide methylparathion i
- Page 31 and 32: ...................................
- Page 33 and 34: ...................................
- Page 35: Science 30 January 2000 Keys Sample
<strong>January</strong> <strong>2000</strong> SA - Sample Answer<br />
The force of a field decreases with distance. If the distance is 2X the force will be onequarter.<br />
If the distance is 3X the force will be one-ninth etc.<br />
Score<br />
4<br />
Standard<br />
of<br />
Excellence<br />
3<br />
2<br />
Acceptable<br />
Standard<br />
<strong>January</strong> <strong>2000</strong> SA - Scoring Guide<br />
Scoring Descriptions<br />
The response reflects an accurate understanding of field strength. The diagrams are<br />
appropriate to the concept of field theory.<br />
The response reflects an adequate understanding of field strength. The diagrams<br />
apply to the concept of field theory.<br />
The response reflects a sketchy understanding of field strength. The diagrams<br />
generally apply to the to the concept of field theory.<br />
The response reflects a poor understanding of field strength. The diagrams do not<br />
apply to the concept of field theory.<br />
1<br />
0 The response does not address any of the major points of the question at an<br />
appropriate level for a <strong>30</strong>-level course.<br />
02/08/00
Change language