Vectors Flashcards
What are vectors
They are to be thought of as a journey.
What are the ways in which we can describe a vector?
- Components
2. Distance and Direction
What do the unit vectors “i” and “j” represent?
“i” represents “x” (right to left)
“j” represents “y” ( from bottom to up)
(This way will be written in bold)
How is the distance and direction form calculated?
Units (squares) of the hypotenuse
And the bearing.
How are hand written unit vectors written?
The same as printed but with symbol ~ under the letter.
How can the journey be represented in capital letters?
→
AB
Name the ways vectors can be represented.
- Capital letters
- Distance and Direction
- Column Vector
- Unit Vectors (printed and handwritten)
How are column vectors represented?
(6)
(8)
(Only with two brackets covering both numbers).
What are equal vectors?
When both components of the vector match.
How to add and subtract vectors?
Add or subtract the components separately
How to combine vectors on a diagram?
Start the second vector where the first vector ends.
How to draw subtracted vectors on a diagram?
The same as adding but reverse the components
So -3 in reverse would be 3 to the right and 2 down.
2
What is the resultant vector?
It is the result of the vectors.
What is scalar multiplication?
Multiplying vectors using the same method as adding or subtracting.
