2009 ICAS G Paper ANSWERS
2009 ICAS G paper ANSWERS
1. A
2. A
3. C
4. D
5. B
6. C
7. A
8. C
9. A (wind energy is renewable)
10. B
11. B
12. D
13. D
14. B
15. B
16. B
17. B?
18. B (the average change in mass is greatest)
19. A
20. A
21. C (because they are reflectors they need to be under the water to reflect the sunlight back up to to the water)
22. B?
23. C
24. C (the amount of liver changes but the other variables remain the same)
25. A (the temperature changes but the other variables remain the same)
26. B
27. C (ie, she had to keep the other variables the same)
28. D
29. B
30. D
31. C
32. B?
33. B
34. D?
35. A
36. B
37. B
38. A
39. D?
40. A (you would assume this because the Pb+S is greater than Pb+O, and according to the values given PbO is lighter than PbS – also, SO2 is a gas (sulfur dioxide)
41. D (because the actual infection rate was generally the same for all groups)
42. B (as shown by personal rating level data for remedy R and to a lesser extent remedy T)
43. B
44. C (not weight because weight = mass x gravity, and the water would not remain in the bucket nor in the cylinder)
45. C (if we assume acceleration = velocity, and rearrange the formula then acceleration = force/mass, so as mass decreases velocity increases and then begins to steady as the fuel gets all used up)
1. A
2. A
3. C
4. D
5. B
6. C
7. A
8. C
9. A (wind energy is renewable)
10. B
11. B
12. D
13. D
14. B
15. B
16. B
17. B?
18. B (the average change in mass is greatest)
19. A
20. A
21. C (because they are reflectors they need to be under the water to reflect the sunlight back up to to the water)
22. B?
23. C
24. C (the amount of liver changes but the other variables remain the same)
25. A (the temperature changes but the other variables remain the same)
26. B
27. C (ie, she had to keep the other variables the same)
28. D
29. B
30. D
31. C
32. B?
33. B
34. D?
35. A
36. B
37. B
38. A
39. D?
40. A (you would assume this because the Pb+S is greater than Pb+O, and according to the values given PbO is lighter than PbS – also, SO2 is a gas (sulfur dioxide)
41. D (because the actual infection rate was generally the same for all groups)
42. B (as shown by personal rating level data for remedy R and to a lesser extent remedy T)
43. B
44. C (not weight because weight = mass x gravity, and the water would not remain in the bucket nor in the cylinder)
45. C (if we assume acceleration = velocity, and rearrange the formula then acceleration = force/mass, so as mass decreases velocity increases and then begins to steady as the fuel gets all used up)