Question 1
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Question text
What is the term used for findings that are summarized based on a pattern or trend?
Select one:
a. Law
b. Hypothesis
c. Theory
d. Phenomena
e. Prediction
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The correct answer is: Law
Question 2
Correct
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What is a unifying principle that explains a body of experimental observations?
Select one:
a. Law
b. Hypothesis
c. Theory
d. Phenomena
e. Prediction
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The correct answer is: Theory
Question 3
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Which of these is an example of a physical property?
Select one:
a. Corrosiveness of sulfuric acid
b. Toxicity of cyanide
c. Flammability of gasoline
, d. Neutralization of stomach acid with an antacid
e. Lead becomes a liquid when heated to 601°C.
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The correct answer is: Lead becomes a liquid when heated to 601°C.
Question 4
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Which of the following is an example of an observation?
Select one:
a. Gases expand as their temperature increases because the gas molecules are moving more
rapidly.
b. Paraffin wax begins to melt at 57°C.
c. Three samples of wax are heated to 75°C.
d. The force acting on an object is equal to its mass times its acceleration.
e. Will all waxes melt at the same temperature?
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The correct answer is: Paraffin wax begins to melt at 57°C.
Question 5
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Which one of these represents a physical change?
Select one:
a. Water, when heated, forms steam.
b. Bleach turns hair yellow.
c. Sugar, when heated, becomes brown.
d. Milk turns sour.
e. Apples, when exposed to air, turn brown.
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The correct answer is: Water, when heated, forms steam.
Question 6
Incorrect
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Correct
4.60 points out of 4.60
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Question text
What is the term used for findings that are summarized based on a pattern or trend?
Select one:
a. Law
b. Hypothesis
c. Theory
d. Phenomena
e. Prediction
Feedback
The correct answer is: Law
Question 2
Correct
4.60 points out of 4.60
Flag question
Question text
What is a unifying principle that explains a body of experimental observations?
Select one:
a. Law
b. Hypothesis
c. Theory
d. Phenomena
e. Prediction
Feedback
The correct answer is: Theory
Question 3
Correct
4.60 points out of 4.60
Flag question
Question text
Which of these is an example of a physical property?
Select one:
a. Corrosiveness of sulfuric acid
b. Toxicity of cyanide
c. Flammability of gasoline
, d. Neutralization of stomach acid with an antacid
e. Lead becomes a liquid when heated to 601°C.
Feedback
The correct answer is: Lead becomes a liquid when heated to 601°C.
Question 4
Incorrect
0.00 points out of 4.60
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Question text
Which of the following is an example of an observation?
Select one:
a. Gases expand as their temperature increases because the gas molecules are moving more
rapidly.
b. Paraffin wax begins to melt at 57°C.
c. Three samples of wax are heated to 75°C.
d. The force acting on an object is equal to its mass times its acceleration.
e. Will all waxes melt at the same temperature?
Feedback
The correct answer is: Paraffin wax begins to melt at 57°C.
Question 5
Incorrect
0.00 points out of 4.60
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Question text
Which one of these represents a physical change?
Select one:
a. Water, when heated, forms steam.
b. Bleach turns hair yellow.
c. Sugar, when heated, becomes brown.
d. Milk turns sour.
e. Apples, when exposed to air, turn brown.
Feedback
The correct answer is: Water, when heated, forms steam.
Question 6
Incorrect
0.00 points out of 4.60
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