Chem ch 3 test Flashcards
1
Q
All measurements have 2 parts
A
Number and measurement unit
2
Q
5 basic units from metric system
A
Length: Meter
Mass: Gram
Time: Second
Temperature: Kelvin
Number of particles: Mole
3
Q
Kilo
A
(10)^3
4
Q
Centi
A
(10)^-2
5
Q
Milli
A
(10)^-3
6
Q
Nano
A
(10)^-9
7
Q
Which is longer 5 meters of 5 centimeter
A
5 meters
8
Q
Which is heavier in mass
A) 42 grams
B) 42 milligrams
C) 42 kilograms
A
C
9
Q
Which measurement is shorter
5 millimeters or 9 nanometers
A
9 nanometers
10
Q
When do you round your calculations
A
At the end
11
Q
What is integrity
A
Being honest when no one is around
12
Q
Accuracy
A
How close a measurement is to the exact value
13
Q
Precision
A
Indicates how repeatable a measurement is
14
Q
A
