Which of the following statements are part of the kinetic Molecular Theory?

Atoms and/or molecules are in constant motion.

When multiplying and dividing sig figs, the answer can have

no more sigfigs than the factor the least # ofsigfigs

explains why something happens., describes what happens in a given experiment.

When a conclusion supports the hypothesis

one can only say the conclusion supports the hypothesis.

Data is considered invalid when

more than one variable changes during the experiment.

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AJC Physics (Science) Ch1 Test Review

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Scientific Method and Math Intro to Science

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Questions 31

Answers

1
What are quarks?
They are found only in the nucleus of an atom.
They are made up of many atoms bonded together.
They make up the subatomic particles.
They are undefined.
2
In scientific notation a number is represented as
M x 10n
None of the above
M x 10n
Mn
3
A law
describes what happens in a given experiment.
Cannot be expressed mathematically
explains why something happens.
None of the above
4
Charles law is a direct relationship between volume and temperature it is mathematically
V = K/T
V = kT
V = K + T
V = K - T
5
What is the 2nd step of the scientific method?
Propose a hypothesis
Perform a controlled experiment
Ask a question
6
How are scientific knowledge and technology related?
Advances in one leads to advances in the other.
They are interrelated.
They build on each other.
All of the above
7
Leading zeroes are never significant
False
True
8
Trailing zeroes are always significant
False
True
9
How many seconds in a meter?
Impossible conversion.
.001
1000
one
10
In scientific notation, M is
none of the above.
-10<M<10
a positive or negative integer
11
The number 0101.0 has
Four significant digits
Three significant digits
2 significant digits
1 significant digit
12
A good model
obey the laws of nature.
all of the above
best represents the system being modelled.
allows predictions of future results.
13
Accuracy and Precision are the same thing
False
True
14
In scientific notation, n is
a positive or negative integer
-10<n<10
none of the above.
15
Boyle's law is an inverse relationship between pressure and volume
P = K - V
P = K/V
P = k V
P = K + V
16
The use of significant digits keeps track of the uncertainty of measurements and calculations.
True
False
17
Which of the following is not an SI Base Unit?
Mole (mol)
Candela (Cd)
Ampere (A)
Newton (N)
18
Which of the following statements are part of the kinetic Molecular Theory?
Atoms and/or molecules are in constant motion.
Matter cannot be created or destroyed
Energy cannot be created or destroyed.
None of the above
19
When multiplying and dividing sig figs, the answer can have
no more sigfigs than the factor the least # ofsigfigs
more sig figs than either of the factors
fewer sigfigs than the factor with the most # of sigfig
20
Embedded zeroes are never significant
False
True
21
A theory
explains why something happens.
describes what happens in a given experiment.
Cannot be expressed mathematically
None of the above
22
When a conclusion supports the hypothesis
one can only say the conclusion supports the hypothesis.
the conclusion is proven.
no further investigation is needed.
the conclusion becomes the theory.
23
Nonzero digits are significant only if there is a decimal point somewhere in the number
True
False
24
Data is considered invalid when
The conclusion does not support the hypothesis.
more than one variable changes during the experiment.
the change in the dependent variable is inconsistent.
The conclusion does not reflect the data analysis.
25
There are no rules for expressing measurements in science
True
False
26
How many meters in 1 kilometer?
106
103
10-6
10-3
27
In a controlled experiment
the change in the dependent variable is measured.
All variables except one is held constant.
the independent or manipulated variable is changed.
All of the above
28
Which is larger a femtometer or a terameter?
they cannot be compared
femtometer
terameter
29
The number 010 has
1 significant digit
Three significant digits
2 significant digits
Four significant digits
30
Any number can be expressed in scientific notation.
False
True
31
The number 0.10 has
1 significant digit
Three significant digits
Four significant digits
2 significant digits

AJC Physics (Science) Ch1 Test Review Flashcards | StudBud