Exam

A theory is best described as
generalization that explains a body of known facts or phenomena
The liter is defined as
1000cm^3
the standard base unit for mass is
kilogram

symbol that represents volume

mL
A change in force of gravity on an object will affect
weight
What statement is true about mass
mass of an object is determined by comparing it to an object of known mass
Density is calculated
dividing mass by volume
What is true about density
density is a physical property
measurement that closely agrees with an accepted value
accurate
numerical result is said to have good precision if
repeated values agree closely
if values for x and y vary as an inverse proportion
their product is a constant
the graph of 2 variables that are directly proportional to one another is
a straight line
.25g equals
250mg
1.06L of water equals
1060mL
The number of grams equal to .5kg is
500
A chemist obtained values 5.2246g 5.2353g and 5.2501g for the mass sample. without knowin the true mass these value have
poor precision
Which of these measurements has been expressed in sig fig?
30.00mm
When 5.7m is divided by 2s the quotient is correctly reported as
3m/s
How would .00930m be expressed in scientific notation
9.30×10^-3m
An analytical balanc can measur mass to the nearest .0001g.  In scientific notation the accuracy of the balance would be expressed as
1×10^-4
x

Hi!
I'm Larry

Hi there, would you like to get such a paper? How about receiving a customized one?

Check it out