Measurements

Question 1

a ratio of equivalent quantities used to express a quantity in different units.
Dimensional analysis is used to convert one unit to another.

Answer 1

Conversion factor

Question 2

How close the observed
value is to the “true” value.

Answer 2

Accuracy

Question 3

Spread in values obtained
from measurements; the
reproducibility of values.

Answer 3

Precision

Question 4

This cannot change
wherever you go

Amount of
matter present
in a substance.

Answer 4

Mass

Question 4

Force exerted by the
gravitational pull of Earth.

This will change if you go
to other planets.

W=mg

Answer 4

Weight

Question 5

Poor __________ results from procedural or equipment flaws

Answer 5

Accuracy

Question 6

Poor _________ is associated with systematic error

Answer 6

Accuracy

Question 7

May make a measurement
consistently too high or too low.

Answer 7

Accuracy

Question 8

poor ________ results from poor
techniques

Answer 8

Precision

Question 9

Poor _______ is associated
with random error

Answer 9

Precision

Question 10

May make a measurement
randomly too high or too low

Answer 10

Precision

Question 11

The measure of the space occupied by matter

Answer 11

Volume