Who is ultimately responsible for the safety of you and others when conducting the experiments for CH 106? - Correct Answer You, the student
You are about to start an experiment. Which of the following items listed below are the correct choices to wear while completing an experiment? - Correct...
Chemistry 106 Lab quiz answer Module 2-7 || With
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Who is ultimately responsible for the safety of you and others when conducting the experiments for CH
106? - Correct Answer You, the student
You are about to start an experiment. Which of the following items listed below are the correct choices
to wear while completing an experiment? - Correct Answer -A fitted T- shirt
-Sneakers
-Any type of long hair pilled back into a ponytail or bun
Doctors are interested in studying the effects of sleep deprivation on learning. The doctors hypothesize
that the less sleep a person gets the less they can remember. They have a group of people, all college
juniors between the age of 18 and 24 in good health, read a passage four hours before going to sleep.
The first group of people are only given 1 hour of sleep, the second group 2 hours of sleep, the third 3
hours of sleep, through to the ninth group getting 9 hours of sleep. The people are tested 24 hours after
having read the passage to see how much they can recall.
Which of the variables below are the independent variable(s) for the experiment? Select all that apply. -
Correct Answer amount of sleep
Which of the variables below are the dependent variable(s) for the experiment? Select all that apply
Doctors are interested in studying the effects of sleep deprivation on learning. The doctors hypothesize
that the less sleep a person gets the less they can remember. They have a group of people, all college
juniors between the age of 18 and 24 in good health, read a passage four hours before going to sleep.
The first group of people are only given 1 hour of sleep, the second group 2 hours of sleep, the third 3
hours of sleep, through to the ninth group getting 9 hours of sleep. The people are tested 24 hours after
having read the passage to see how much they can recall. - Correct Answer Recall of passage
The variable that you have control over during an experiment is the - Correct Answer independent
The variable that changes when the independent variable is altered is the - Correct Answer dependent
It is important to collect data from an experiment in order to: - Correct Answer -allow the data to be
used by others to draw conclusions
, -use the data to confirm or reject a hypothesis
-allow the data to be compared by others who replicate the experiment.
A table is used to -----data, and a graph is used to more easily----data. - Correct Answer Organize;
display, visualize, convey summarize
What is the correct reading for the volume shown in the image below?
REPORT YOUR ANSWER TO THE CORRECT NUMBER OF SIGNIFICANT DIGITS. - Correct Answer 6.73
You are using a set of standards to check your scale. The 10 g standard is weighed three times and gives
the following readings:
9.1 g, 8.9 g, 9.2 g
Is your data set accurate, precise, both accurate and precise, or neither accurate nor precise? - Correct
Answer Precise
You then decide to help your friend use a set of standards to check their scale. The 10 g standard is
weighed three times and gives the following readings:10.1 g, 9.7 g, 10.7 g
Is your friend's data set accurate, precise, both accurate and precise, or neither accurate nor precise? -
Correct Answer Neither accurate nor precise
Percent error, or relative error, is a type of------error - Correct Answer systematic
True or False: There is nothing that can be done to eliminate uncertainty in an experiment. - Correct
Answer True
Calculate the average of the following data set, and report your answer to the correct number of
significant digits. DO NOT INCLUDE UNITS.
An element contains only one type of - Correct Answer atom
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