Mult. Choice
A judgement based on someones impressions or an opinion is known as:
measurement
estimation
experimental value
none of the above
estimation
In the international system of units, the base unit of volume is the:
kilogram
Joule
meter
gram
none of the above (mL or L)
the correct laboratory value based on reliable resources is known as the ___________ value.
accepted
How many sig figs are in the number .0098mL?
2.98+0.348=
3.24
A scientist dose a experiment and obtains one measurement. From this measurement, he can state that in doing his experiment, he was:
accurate
precise
both a and b
neither a or b
accurate
Which of the following instruments is most likely to be used to measure volume?
electronic balance
graduated cylinder
triple beam balance
graduated cylinder
a quantity that has both a number and a unit is a ______.
measurement
How many sig figs are in the number 5534?
4
184.33-9.6=
174.7
Which of the following is needed in order to calculate % error?
experimental value
accepted value
both a and b
neither a or b
both a and b
which of the following is the correct formula for calculating density?
D= mass/volume
D=volume/mass
D= mass+volume
D=mass/volume
All of the digits in a measurement that are known, plus a last digit that is estimated, are known as ________.
Sig figs
How many sig figs are in the number 1.070?
4
34.0x2.0=
68
Which quantity below is the lowest on the K scale?
0K
273K
32K
100K
OK
What is the SI unit for finding mass?
meter
kilogram
kilometer
K
kilogram
The upside down "arc" formed by the liquid in a volumetric measuring device is the ___________.
meniscus
How many sig figs are in the number 1.50 x 10 ^12 cm
Convert 28.6 degrees celsius to Kelvin?
301.6K
there are 100cm in 1m
there are 10 mm in 1cm
there are 100m in 1km
there are 1000mm in 1m stick
there are 100m in one kilometer(there is 1000m in one km)
which of the following has the highest density?
iron nail
iron railroad stake
iron rod
they all have the same density
they all have the same density
The amount of matter in an object is known as its __________.
mass
how many sig figs are in the number 10,000340?
7
Convert 102.6 degrees Fahrenheit to degrees celsius
39.2