WorksheetsAct Aspire Science Prep
Total questions: 15
Worksheet time: 49mins
Which liquid had the highest molecular mass?
Hexane
Petroleum Ether
Ethanol
H20
A scientist has that the larger the molecular mass, the larger the viscosity. Is he correct?
Yes, it is supported by Table 1.
Yes, it is supported by Figure 1.
No, because different molecular masses have differing viscosity levels.
No, because viscosity is the same for all molecular masses.
Which position produced the highest PE (potential energy)?
A
B
C
Both D and E
Which pigment had the lowest absorption rate at 500 nm wavelength?
Chlorophyll A
Chlorophyll B
Carotenoids
All the same
Which position produced the highest KE (kinetic energy)?
A
B
C
Both D and E
Does the liquid with the highest density also have highest viscosity?
Yes, and it is Ethanol
Yes and it is H20.
No, because H20 has second highest viscosity while it has the highest density.
No, because all liquids have the same density.
Cattle have mainly fed on grass in a particular region in Texas for the past 40 years. Recently, the population of cattle has doubled. What effects might this growth have on the ecosystem?
The cattle are diseased.
Next year, the cattle population will have tripled.
The cattle need more space or more grass.
The cattle need less space or less food.
Fishermen have recently begun fishing near Antartica. Due to their success, they plan to expand their business and capture thirty to fiftty times as many fish. What effects might this have on the ecosystem?
The fish might become endangered.
Any prey of these fish might overpopulate.
Both answers are correct.
According to our recent study, water does not shoot further from a bottle when mixed with detergent or coke.
I agree with the hypothesis.
I disagree with this hypothesis.
Name two plant groups that have a combined growth less than that of plant 3.
1 & 2
2 & 7
1 & 7
6 & 7
Which of the following statements best describes the changes observed in the graph?
At T1, Sample 1 has a lower kinetic energy than does Sample 2.
At T2, Sample 1 has a lower kinetic energy than does Sample 2.
An increase in temperature leads to a decrease in kinetic energy.
Water never undergoes a phase change.
Assume that water undergoes a phase change to a gas. Which of the following statements would be true?
The attractive intermolecular forces of the escaping molecules are weak.
The average kinetic energy of the water remains the same.
The rate of movement of the gas molecules decreases.
The gas will undergo no further phase changes.
Suppose a third sample of water is heated to a higher temperature than Sample 2. It is then found that a greater number of molecules escaped the liquid in Sample 3 than in Sample 2. Would these results be consistent with the
results depicted in Figure 1 ?
Yes, an increase in temperature leads to a decrease in the number of escaping molecules in the liquid.
Yes, as the temperature increases, it leads to more molecules escaping the liquid.
No, the temperature reading of Sample 2 would be five times as high as that of the third sample.
No, the average kinetic energy of the water will decrease.
It can be inferred from the passage that when a substance undergoes a phase change from a liquid to a gas it will:
evaporate.
condense.
disintegrate.
remain the same.
