Levels Tought:
Elementary,Middle School,High School,College,University,PHD
Teaching Since: | Apr 2017 |
Last Sign in: | 8 Weeks Ago, 2 Days Ago |
Questions Answered: | 7567 |
Tutorials Posted: | 7349 |
BS,MBA, PHD
Adelphi University/Devry
Apr-2000 - Mar-2005
HOD ,Professor
Adelphi University
Sep-2007 - Apr-2017
Question 1
__________ properties do not depend on the amount of substance present.
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 Intensive
 Extensive
 Chemical
 None of these are correct.
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Question 2
__________ reasoning begins with a prediction based on a general principle.
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 Intensive
 Deductive
 Extensive
 Extensive
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Question 3
Which is the formula used to calculate density?
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 d=m+V
 d=mV
 d=m-V
 d=m/V
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Question 4
The __________ scale is also referred to as the absolute temperature scale.
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 Fahrenheit
 Ampere
 Celsius
 Kelvin
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Question 5
Which of these statements is an example of an intensive property?
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 Diamond is the hardest known substance.
 There are six crackers per pack.
 The volume of the water is 40mL.
 The mass of a piece of charcoal is 10g
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Question 6
Which of these is considered a derived unit?
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 kilogram
 meter
 joule
 second
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Question 7
The __________ is the middle value in a numerically ordered list of numbers.
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 mean
 median
 mode
 average
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Question 8
79,502 has _____ significant figures.
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 5
 3
 2
 4
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Question 9
How many seconds are in a day?
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 86,400
 120,000
 5,000
 60
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Question 10
Calculate the median of the following:
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85.3
Â
80
Â
82.5
Â
87
Â
80
Â
82.5
Â
82.5
Â
 80
 87
 82.8
 82.5
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Question 11
__________ properties describe matter's reactions with other substances.
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 Chemical
 Compound
 Physical
 Pure
Question 12
The __________ is calculated by adding up all the numbers and the dividing by the total number of values.
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 mode
 median
 mean
 density
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Question 13
The __________ is the value that occurs most often in a set of numbers.
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 mode
 median
 mean
 average
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Question 14
Calculate the mean of the following:
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85.3
Â
80
Â
82.5
Â
87
Â
80
Â
82.5
Â
82.5
Â
 82.5
 87
 82.8
 80
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Question 15
According to the Celsius scale, the normal freezing point of water is __________.
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 0°C
 32°C
 100°C
 212°C
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Question 16
The SI Unit for mass is the __________.
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 joule
 second
 mole
 kilogram
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Question 17
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Calculate the mode of the following:
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85.3
Â
80
Â
82.5
Â
87
Â
80
Â
82.5
Â
82.5
Â
 80
 82.5
 85.3
 87
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Question 18
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(3.5 x 102m) x (2.5 x 104m) =
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 8.75 x 10-6m2
 87.5 x 10-6m2
 8.75 x 106m2
 87.5 x 106m2
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Question 19
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In measurement, __________ is the process of referencing a physical quantity in terms of a reference point or mark.
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 percent uncertainty
 calibration
 estimation
 precision
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Question 20
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Which prefix means billion?
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 pico-
 hecto-
 nano-
 giga-
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Question 21
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__________ is the separation of a mixture by passing it through a medium.
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 Filtration
 Chromatography
 Evaporation
 Distillation
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Question 22
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 __________ uncertainty is the ratio of the uncertainty to the measured value.
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 Percent
 Estimation
 Accuracy
 Significant
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Question 23
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Matter can exist in which of the following states?
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 liquid
 All of these are correct
 gas
 solid
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Question 24
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The identity of a __________ substance does not change when it is frozen, boiled, or melted.
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 intensive
 decomposed
 compound
 pure
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Question 25
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According to the Fahrenheit scale, the normal boiling point of water is __________.
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 0°F
 212°F
 100°F
 32°F
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