Introduction

Question 1

A circuit diagram consisting of lines and symbols is a called…?

Answer 1

schematic diagram

Question 2

What was the real name of Scottish physicist Lord Kelvin?

Answer 2

William Thomson

Question 3

meagre

Answer 3

very small in amount or

Question 4

Lord Kelvin said “When you can measure what you speak about, and express it in numbers, you know something about it; but when you cannot measure it, when you cannot ________ it in numbers, your knowledge is of a meagre and unsatisfactory kind.”

Answer 4

Lord Kelvin said “When you can measure what you speak about, and express it in numbers, you know something about it; but when you cannot measure it, when you cannot express it in numbers, your knowledge is of a meagre and unsatisfactory kind.”

Question 5

Where did the metric system come from and when?

Answer 5

in France ~1800

Question 6

What led to the International Bureau of Weights and Measures (BIPM) to provide measurements standards for global use?

Answer 6

As a result of a treaty signed in 1875 by representatives of 17 nations.

Question 7

When did the Institute of Electrical and Electronics Engineers (IEEE) adopt the International System of Units (SI)?

Answer 7

October 1965

Question 8

Where did the Institute of Electrical and Electronics Engineers (IEEE) adopt the International System of Units (SI)?

Answer 8

at the 11th General Conference on Weights and Measures (CGPM) in France in 1960

Question 9

The base unit of length or distance in the International System of Units is…?

Answer 9

…the metre

Question 10

What was the metre originally calculated as?

Answer 10

ten-millionth (1 × 10⁻⁷)

Question 11

From where on Earth was the metre calculated as?

Answer 11

at sea level from the Earth’s equator to the pole

Question 12

What is the metre now more accurately defined as at the distance travelled by light through a vacuum?

Answer 12

A meter is now defined as the speed of light in vacuum in 1/299 792 458 sec.

Question 13

What does the metric system use to separate a group of three numbers and what does the imperial system use?

Answer 13

The metric system uses spaces and the imperial system uses commas.

E.g. Metric system: 299 792 458
Imperial system: 299, 792, 458

Question 14

What was gram, the original mass metric unit, defined as?

Answer 14

the mass of a cubic centimeter of pure water at 4°C

Question 15

What’s the SI base unit for mass now?

Answer 15

1000 grams–the kilogram

Question 16

For a century, what was the reference of the international standard for the kilogram?

Answer 16

the International Prototype of the Kilogram (IPK), a platinum-iridium cylinder stored at constant temperature and humidity

https://cdn.mos.cms.futurecdn.net/CBrwF54yT9qQJaScNCwAPj-1200-80.jpg

Question 17

Where was the reference of the international standard for the kilogram kept?

Answer 17

in Sèvres, France.

Question 18

Which unit was the last to be based on a physical object?

Answer 18

the kilogram

Question 19

Why and when was the definition of a kilogram official changed?

Answer 19

on May 2019 to improve precision and remove dependence on a physical object

Question 20

What was the second originally defined as?

Answer 20

1/86 400 of a mean solar day

Question 21

What do we know define the second as?

Answer 21

in terms of the decay of radioactive cesium in an atomic clock

Question 22

What’s the SI unit for temperature?

Answer 22

kelvin (K)

Question 23

How much Celsius degree is a kelvin equal to?

Answer 23

1 kelvin = 1 celsius degree

Question 24

What’s the freezing and boiling point of water on the Celsius scale

Answer 24

freezing point: 0°C
boiling point: 100°C

Question 25

What’s the freezing point in kelvin?

Answer 25

273.15 K

Question 26

What’s the boiling point in kelvin?

Answer 26

373.15 K

Question 27

What’s the equation for the conversion between:
* Celsius to Fahrenheit
* Fahrenheit to Celsius
* Celsius to kelvin
* kelvin to Celsius?

Answer 27

• Celsius to Fahrenheit: F = 9/5 (C) +32
• Fahrenheit to Celsius: C = 5/9(F - 32)
• Celsius to kelvin: K = C + 273.15
• kelvin to Celsius: C = K - 273.15

Question 28

What’s the Absolute zero and what is it defined as?

Answer 28

the lowest temperature theoretically possible, defined as 0 K (Kelvin)

Question 29

What’s the SI unit that extends the system of units to electrical measure?

Answer 29

ampere (A)

Question 30

The ampere was defined in term of what to relate electrical measurement to mechanical measurement?

Answer 30

in terms of the electromagnetic
force between two current-carrying electric conductors

Question 31

In 2019, the new definition of the ampere will be based on what fixed value?

Answer 31

on the fixed value of the elementary charge (e): e = 1.602176634 × 10⁻¹⁹ coulombs

which links to the ampere to the second

Question 32

What’s the calculator’s key to give answers in the power of 10 for SI unit prefixes labeled as?

Answer 32

Eng

Question 32

What are the calculator’s keys to evaluate exponantials and convert between rectangular and polar coordinates labeled as?

Answer 32

e^x, →P, →R

Question 33

Do scientific calculators have the mentioned functions on the 2 previous cards?

1-4 Numerical Accuracy

Answer 33

no