International System of Units Flashcards
What is the International unit name, symbol and dimension for Time?
International unit name: Second
Unit symbol: s
Dimension: T
What is the International unit name, symbol & dimension for Length?
International Unit Name: Metre
Symbol: m
Dimension: L
1 metre is equal to how many feet?
3.28 feet
In Aviation, what measurement of distance is used for navigation & why?
The Nautical Mile
&
It is used due to its correlation to the surface of the Earth
What is the International Unit Name, symbol & dimension for Mass?
International Unit Name: Kilogram
Symbol: kg
Dimension: M
Is the kilogram an imperial measurement or metric value?
Metric Value
1 Kilogram is equal to how many pounds?
2.2 pounds
In imperial measurements, what are kilograms measured in?
Pounds
What is the International Unit Name, & symbol for Temperature?
International Unit Name: Kelvin
Symbol: K
The Kelvin Scale is an?
Absolute Scale
What is the null point for the Kelvin Scale?
Absolute Zero
Does 1 Kelvin and 1 degree Celsius have the same magnitude?
Yes!
Does 1 Kelvin and 1 degree Celsius have the same null point?
No!
[Water at Sea level - Kelvin]
At what temperature does water freeze & boil?
Freeze: 273
Boils: 373
[Water at sea level - Celsius]
At what temperature does water freeze & boil?
Freeze: 0
Boil: 100
[Water at sea level - Fahrenheit]
At what temperature does water freeze and boil?
Freeze: 32
Boil: 212
What is the International Unit Name & s symbol for Force?
International Unit Name: Newtons
Symbol: F
What is Force?
Force is any interaction, when unopposed, will change the motion of an object
What can Force do?
Force can cause and object with mass to change its velocity
What does Force have?
- Magnitude
- Direction
If Force has both magnitude and direction what does it make it?
Vector Quantity
What is the International Unit Name & Symbol for Pressure?
International Unit Name: Pascal
Symbol: P
What is Pressure?
Pressure is a force applied perpendicular to the surface of an object per unit over which that force is distributed.
What can a pascal be defined as?
1 Newton per square inch.
What else can pressure be used to measure?
- Hectopascals
- Millibars
- Inches of Mercury
When measuring Air Pressure, what can they be referenced too?
- Atmospheric Pressure (differential pressure)
- Vacuum (absolute value)