Chapter 3 vocabulary

Question 0

Scientific notation

Answer 0

A given number is written as the product of two numbers: a coefficient and 10 raised to a power

Question 1

Measurement

Answer 1

A quantity that has both a number and a unit

Question 2

Accuracy

Answer 2

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

Question 3

Precision

Answer 3

A measure of how close a series of measurements are to one another

Question 4

Accepted value

Answer 4

The correct value 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

The absolute value of the error divided by the accepted value, multiplied by 100%

Question 8

Significant figures

Answer 8

In a measurement includes all of the digits that are known plus a last digit that is estimated

Question 9

SI unit for length

Answer 9

Meter

Question 10

SI unit for mass

Answer 10

Kilogram

Question 11

SI unit for temperature

Answer 11

Kelvin

Question 12

SI unit for time

Answer 12

Second

Question 13

SI unit for amount of a substance

Answer 13

Mole

Question 14

SI unit for luminous intensity

Answer 14

Candela

Question 15

SI unit for electric current

Answer 15

Ampere

Question 16

Density

Answer 16

The ratio of the mass of an object to its volume