Chapter 3 Vocabulary

Question 1

Scientific Notation

Answer 1

A number written as a coefficient and a power of 10

Question 2

Accuracy

Answer 2

The measure of how close a measurement comes to the actual or true value of whatever is measured

Question 3

Precision

Answer 3

How close a series of measurements are to one another

Question 4

Accepted Value

Answer 4

Correct based on reliable references

Question 5

Experimental Value

Answer 5

The value measured in the lab

Question 6

Error

Answer 6

The difference between the experimental value and the accepted value

Question 7

Percent Error

Answer 7

|error|
Percent Error=———- x 100%
Accepted value

Question 8

Significant Figures

Answer 8

Include all known digits and one estimated digit

Question 9

International System Of Units

Answer 9

A revised version of the metric system

Question 10

Meter

Answer 10

SI unit of length

Question 11

Liter

Answer 11

SI unit of volume

Question 12

Kilogram/Gram

Answer 12

SI units of mass

Question 13

Temperature

Answer 13

A measure of how hot or cold an object is

Question 14

Kelvin/Celcius

Answer 14

SI measures of temperature

Question 15

Absolute Zero

Answer 15

0K or -273°C

Question 16

Energy

Answer 16

The capacity to do work and produce heat

Question 17

Joule

Answer 17

SI unit of energy

Question 18

Calorie

Answer 18

The quantity of heat that raises the temperature of one g of pure water by 1°C

Question 19

Conversion Factor

Answer 19

A ratio of equivalent measurements

Question 20

Dimensional Analysis

Answer 20

A way to analyze and solve problems using units of measurements

Question 21

Density

Answer 21

The ratio of the mass of an object to its volume
Mass
Density = ———-
Volume

Question 22

Measurement

Answer 22

A quantity that has both a number and a unit