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Elementary,Middle School,High School,College,University,PHD
| Teaching Since: | Apr 2017 |
| Last Sign in: | 89 Weeks Ago, 6 Days Ago |
| Questions Answered: | 7570 |
| Tutorials Posted: | 7352 |
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.
Intensive
Extensive
Chemical
None of these are correct.
Question 2
__________ reasoning begins with a prediction based on a general principle.
Intensive
Deductive
Extensive
Extensive
Question 3
Which is the formula used to calculate density?
d=m+V
d=mV
d=m-V
d=m/V
Question 4
The __________ scale is also referred to as the absolute temperature scale.
Fahrenheit
Ampere
Celsius
Kelvin
Question 5
Which of these statements is an example of an intensive property?
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
Question 6
Which of these is considered a derived unit?
kilogram
meter
joule
second
Question 7
The __________ is the middle value in a numerically ordered list of numbers.
mean
median
mode
average
Question 8
79,502 has _____ significant figures.
5
3
2
4
Question 9
How many seconds are in a day?
86,400
120,000
5,000
60
Question 10
Calculate the median of the following:
85.3
80
82.5
87
80
82.5
82.5
80
87
82.8
82.5
Question 11
__________ properties describe matter's reactions with other substances.
Chemical
Compound
Physical
Pure
Question 12
The __________ is calculated by adding up all the numbers and the dividing by the total number of values.
mode
median
mean
density
Question 13
The __________ is the value that occurs most often in a set of numbers.
mode
median
mean
average
Question 14
Calculate the mean of the following:
85.3
80
82.5
87
80
82.5
82.5
82.5
87
82.8
80
Question 15
According to the Celsius scale, the normal freezing point of water is __________.
0°C
32°C
100°C
212°C
Question 16
The SI Unit for mass is the __________.
joule
second
mole
kilogram
Question 17
Calculate the mode of the following:
85.3
80
82.5
87
80
82.5
82.5
80
82.5
85.3
87
Question 18
(3.5 x 102m) x (2.5 x 104m) =
8.75 x 10-6m2
87.5 x 10-6m2
8.75 x 106m2
87.5 x 106m2
Question 19
In measurement, __________ is the process of referencing a physical quantity in terms of a reference point or mark.
percent uncertainty
calibration
estimation
precision
Question 20
Which prefix means billion?
pico-
hecto-
nano-
giga-
Question 21
__________ is the separation of a mixture by passing it through a medium.
Filtration
Chromatography
Evaporation
Distillation
Question 22
__________ uncertainty is the ratio of the uncertainty to the measured value.
Percent
Estimation
Accuracy
Significant
Question 23
Matter can exist in which of the following states?
liquid
All of these are correct
gas
solid
Question 24
The identity of a __________ substance does not change when it is frozen, boiled, or melted.
intensive
decomposed
compound
pure
Question 25
According to the Fahrenheit scale, the normal boiling point of water is __________.
0°F
212°F
100°F
32°F
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