Measurements

Question 1

Length

Answer 1

Measures a distance or dimension

Question 2

Volume

Answer 2

Is the amount of space occupied by a substance

Question 3

Mass

Answer 3

Measure of the quantity of materials it contains

Question 4

Temperature

Answer 4

The measurement of the degree of hotness or coldness of an object.

Question 5

Exact number

Answer 5

Numbers obtained by counting. Numbers known with certainty.

Question 6

Scientific Notation

Answer 6

used to express very large or very small numbers.

Question 7

Significant Figures

Answer 7

meaningful digits of a measurement

Question 8

Density

Answer 8

amount of mass per unit volume

Question 9

Measured numbers

Answer 9

Numbers that are obtained using a tool.

Question 10

Two types of data collection

Answer 10

Quantitative- numbers with units

Qualitative- non-numerical data (color, phases)

Question 11

Accuracy

Answer 11

How close the results are to the actual answer.

Question 12

Precision

Answer 12

How close the results are to each other.

getting same result for multiple trials

Question 13

Metric Prefixes

Answer 13

Giga = 1 billion= 10*9
Mega= 1 million= 10*6
Kilo= 1 thousand= 10*3
Deci= 1 tenth= 10*-1
Centi= 1 hundredth= 10*-2
Milli= 1 thousandth= 10*-3
Micro= 1 millionth= 10*-6
Nano= 1 billionth= 10*-9
Pico= 1 trillionth= 10*-12
Fento= 1 quadrillionth= 10*-15

Question 14

S.I. Unit

Answer 14

Physical Quantity= Name of Unit
Mass= Kilogram
Length= Meter
Time= Second
Temperature= Kelvin
Amount of substance= Moles
Electric current= Ampere
Luminous intensity= Candela

Question 15

Dimensional Analysis

Answer 15

Organized method of problem-solving