|
Flashcards: Units and Measurements 32 Flashcards 
|
|
|
Card: 1 / 32 
|
A physical quantity consists of a numerical value and a ___ of measurement. |
|
|
Card: 2 / 32
|
Unit  |
|
|
Card: 3 / 32
|
Fill in the blank: The larger the unit, the ___ the magnitude. |
|
|
Card: 4 / 32
|
Smaller |
|
|
Card: 5 / 32
|
Name the seven fundamental physical quantities. |
|
|
Card: 6 / 32
|
Length, Mass, Time, Electric Current, Temperature, Amount of Substance, Luminous Intensity  |
|
|
Card: 7 / 32
|
True or False: Derived quantities are independent of fundamental quantities. |
|
|
Card: 8 / 32
|
False. Derived quantities are calculated from fundamental quantities.  |
|
|
Card: 9 / 32
|
Length is considered a ___ quantity, while area is a ___ quantity. |
|
|
Card: 10 / 32
|
Fundamental; derived |
|
|
Card: 11 / 32
|
What is the significance of the product 'nu' in the context of physical quantities? |
|
|
Card: 12 / 32
|
The product 'nu' remains constant even when the unit changes, indicating the relationship between unit and magnitude. |
|
|
Card: 13 / 32
|
What is the significance of the International System of Units (SI) in physics? |
|
|
Card: 14 / 32
|
The International System of Units (SI) provides a globally accepted standard for measurement, enabling consistent communication and comparison of physical quantities across different fields and regions. |
|
|
Card: 15 / 32
|
Fill in the blank: The SI system consists of ___ fundamental units and ___ supplementary units. |
|
|
Card: 16 / 32
|
7 fundamental units and 2 supplementary units  |
|
|
Card: 17 / 32
|
The relationship between the magnitude and unit of a physical quantity is that they are ___ to each other. |
|
|
Card: 18 / 32
|
Inversely proportional  |
|
|
Card: 19 / 32
|
Give an example of a derived quantity and explain how it is derived. |
|
|
Card: 20 / 32
|
Area is a derived quantity calculated by multiplying length by itself (Length²).
|
|
|
Card: 21 / 32
|
What are the three fundamental quantities in the CGS system, and their corresponding units? |
|
|
Card: 22 / 32
|
The three fundamental quantities in the CGS system are length (centimetre), mass (gram), and time (second). |
|
|
Card: 23 / 32
|
Which SI prefix corresponds to a factor of 10^-6? |
|
|
Card: 24 / 32
|
Micro (μ) |
|
|
Card: 25 / 32
|
Fill in the blank: The unit 'litre' is equivalent to ___ m³. |
|
|
Card: 26 / 32
|
10^-3 m³ |
|
|
Card: 27 / 32
|
Multiple Choice: Which of the following is NOT part of the SI system? A) Kilogram B) Foot C) Metre D) Second |
|
|
Card: 28 / 32
|
B) Foot |
|
|
Card: 29 / 32
|
The order of magnitude of the radius of the Earth, expressed as 6.4 x 10⁶ m, is ___ m. |
|
|
Card: 30 / 32
|
10⁷ m |
|
|
Card: 31 / 32
|
True or False: The order of magnitude for a value of 1.7 x 10⁰ m is 0. |
|
|
Card: 32 / 32
|
True |
|
|
|
 Completed! Keep practicing to master all of them. |
|
