HiSet Science Practice Test #2

What does the specific heat of a substance indicate?

• The temperature at which a substance melts

• The heat required to raise the temperature of one gram of the substance by 1°C

• The boiling point of the substance

• The density of the substance

Which substance is noted for having the highest specific heat among common substances?

• Iron

• Copper

• Aluminum

• Water

Which student's measurements show the least variation and thus the greatest precision?

• Student I

• Student II

• Student III

• Student IV

What was the main reason each volunteer was stung on each arm but had only one sting treated with meat tenderizer?

• So that differences between right-handed students and left-handed students would not affect the results

• To allow the researchers to choose the more severe of the two stings for treatment

• So the researchers would have twice as much data about the meat tenderizer’s effects

• To obtain a set of control data with which to compare the experimental data

Tags

NGSS.MS-ETS1-2

NGSS.MS-ETS1-3

NGSS.MS-PS1-2

Would the validity of the results have been affected if the volunteers had been told which of their two stings was being treated with meat tenderizer?

• No; it wouldn’t have had any effect on the validity of the results as long as all the volunteers were told.

• No; the volunteers were medical students and therefore trained to be objective.

• Yes; it might have affected how much pain and itching they thought they felt on either arm.

• Yes; they probably would have felt greater discomfort on the arm that was treated with the meat tenderizer.

In the time period presented, in which drought classification were the percentages of affected areas in Regions E and F most similar?

• Abnormally dry

• Moderate drought

• Severe drought

• Extreme drought

Tags

NGSS.MS-ESS3-2

Which statement about Regions E and F is true?

• A. The total area of Region E affected by drought is less than that of Region F.

• B. All of Region E and about half of Region F are affected by drought.

• C. The drought affecting Region E is less severe than that affecting Region F.

• D. Most of both Regions E and F are affected by exceptional drought.

Tags

NGSS.MS-ESS3-2

Joshua was interested in studying the effect of exercise on the pulse rates of several of his friends. Which of the following four-step procedures would be best for completing this study?

• Measure pulse rates of friends, have friends run in place for 2 minutes, measure pulse rates of friends, have friends sit for 5 minutes.

• Measure pulse rates of friends, have friends run in place for 2 minutes, have friends sit for 5 minutes, measure pulse rates of friends.

• Have friends sit for 5 minutes, measure pulse rates of friends, have friends run in place for 2 minutes, measure pulse rates of friends.

• Measure pulse rates of friends, have friends sit for 5 minutes, have friends run in place for 2 minutes, measure pulse rates of friends.

Tags

NGSS.MS-ETS1-2

NGSS.MS-ETS1-1

Which birds of the northern United States can probably best withstand extreme temperature changes?

• Those that migrate to coastal regions in the fall

• Those that migrate south in the fall

• Those that migrate north in the spring

• Those that remain in that region throughout the year

Tags

NGSS.MS-ESS2-6

In an experiment, the heights of three plants in the control group were measured as 10.6 cm, 10.8 cm, and 10.9 cm. The calculator used to compute the average of these measurements showed 10.766666. What value should be recorded for the average?