Week 1

Question 1

Value of Micro and its symbols?

Answer 1

One millionth
u

Question 2

Value of milli and its symbol?

Answer 2

One thousandth
m

Question 3

Value of centi and its symbol?

Answer 3

One hundreth
c

Question 4

Value of kilo and its symbol?

Answer 4

One thousand
k

Question 5

Value of Mega and its symbol?

Answer 5

One million
M

Question 6

Value of Giga and its symbol?

Answer 6

One Billion
G

Question 7

Value of nano and its symbol?

Answer 7

10)-9
n

Question 8

What can temperature be defined as?

Answer 8

Temperature Scales

Question 9

What are the 3 temperature scales?

Answer 9

-Celsius Scale
–Fahrenheit Scale
-Kelvin Scale

Question 10

What is a temperature scale?

Answer 10

A temperature scale can be defined by a minimum of two fixed points,
where certain events take place, e.g. melting and boiling of a particular
material.

Question 11

What is a fixed point for temperature scales?

Answer 11

At these temperatures, certain events such as melting and boiling of a particular material occur

Question 12

What are the fixed points of temperature?

Answer 12

-Boiling point at 100 C
-The freezing point 0 C
-The triple point of water 0.01 C
-The absolute 0 point -273.15

Question 13

What is the triple point of water?

Answer 13

The temperature at which pure ice, pure water and pure water vapour can exist together in equilibrium

Question 14

What is the absolute 0 point?

Answer 14

The temperature at which the particle constituents of matter have minimal motion, which is
independent of the properties of any material

Question 15

How to convert from Celsius to Kelvin?

Answer 15

Add 273.15

Question 16

How to convert from Kelvin to Celsius?

Answer 16

Subtract 273.15

Question 17

What is a centrigrade scale?

Answer 17

There are 100 equal parts between 2 fixed points

Question 18

Experiment for measuring temperature?

Answer 18

Putting the sensor in melting ice and record the measured value as X0 as
the ice point (0°C) on the scale;
o then,

Put the sensor in boiling water and record the measured value as X100
as the steam point (100°C) on the scale

Draw a straight line between them 2

Draw a horizontal line for the temperature you want to measure

Use the equation: (Temp you want to measure - Temp 0/ Temp 100-Temp 0) x 100

Question 19

What are the types of thernometers?

Answer 19

-Liquid in Glass thernometer
-Resistance Temperatures Detectors
-Thermocouples
-Constant Volume Gas thernometers