# Q1: Another name for "fundamental units" is

A base units
B atoms
C the metric system
D letter symbols

A
7.2 V
B
7.2 V
C
7,200,000 V
D
0.0072 V

# Q3: The difference between scientific and engineering notation is

A powers of ten representation
B single vs. multiple digits before decimal point
C groupings of multiples of three digits
D All of the above

A
8 × 104
B
8 × 107
C
8 × 1011
D
8 × 1015

A Nano
B Mega
C Kilo
D Micro

A error
B precision
C accuracy
D significant

# Q7: Scientific notation is a method

A of expressing a very large number
B of expressing a very small number
C used to make calculations with large and small numbers
D All of the above

# Q8: The digits in a measured number that are known to be correct are called

A accuracy digits
B significant digits
C error digits
D precision digits

A
36.4 × 107
B
116.5 × 104
C
28.39 × 103
D
1.165 × 105

# Q10: If you drop a 5 when rounding a number, you are using the

A round-to-even rule
B significant digit rule
C round-off rule
D retained digit rule

# Q11: When using the terms "accuracy" and "precision" for measurements

A "precision" implies less measurement error than "accuracy"
B "accuracy" implies less measurement error than "precision"
C "precision" measures the repeatability of a measurement
D both terms mean the same thing

A one-tenth
B one-hundredth
C one-thousandth
D one-millionth

A
21.8 mA
B
218 mA
C
29 mA
D
290 mA

A
470 × 105
B
82 × 10–2
C
9.1 × 10–6
D
14.7 × 108

A hertz
B ampere
C watt
D second

A
1.48 × 10–1
B
1.48 × 100
C
1.48 × 101
D
1.48 × 102

# Q17: Derived units are obtained from various combinations of

A electrical quantities
B fundamental units
C metric prefixes
D international standards

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