Vocab Quiz - Unit 2

Question 1

Specific prortion of matter i a given region of space that has been selected for study during an experiment or observation

Answer 1

System

Question 2

Hypothesis

Answer 2

Testable statement

Question 3

Conditions that remain constant

Answer 3

Controls

Question 4

Any condition that changed

Answer 4

Variables

Question 5

More than a physical object

Answer 5

Model

Question 6

A broad generalization that explains a body of phenomena

Answer 6

Theory

Question 7

Something that has magnitude size or amount

Answer 7

Quantity

Question 8

Combinations of si base unit form derived units

Answer 8

Derived units

Question 9

Amount of space occupied by an object

Answer 9

Volume

Question 10

Ratio of mass to volume (mass/volume)

Answer 10

Desnity

Question 11

Ratio derived from the equality b/ttwo different units that can be used to convert from one unit to another

Answer 11

Conversion factor

Question 12

Mathematical technique that allows you to use units to solve problems involving measurements

Answer 12

Dimensional analysis

Question 13

How close the average of your measurements are to the actual value

Answer 13

Accuracy

Question 14

How close your values are to each other

Answer 14

Precision

Question 15

Calculated by substacting accepted value from experimental value divided by the accepted value and then by multiplying by 100

Answer 15

Percentage error formula

Question 16

In a measurement consists of all the digits known with certainty to one final digit

Answer 16

Significant digits

Question 17

Kilo

Answer 17

K 10^3

Question 18

Mega

Answer 18

M 10^6

Question 19

Deci

Answer 19

d - 10^1

Question 20

Centi

Answer 20

c - 10^2

Question 21

Milli

Answer 21

m 10^3

Question 22

Micro

Answer 22

U 10^6

Question 23

Nano

Answer 23

n 10^9

Question 24

Pico

Answer 24

P 10^12