Vectors (OCR GCSE Maths): Flashcards
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15 cards from this deck
What do vectors describe?
What do vectors describe?
Movement from one point to another in space
What does the top number in a vector represent?
What does the top number in a vector represent?
Horizontal movement (+ right, - left)
What does the bottom number in a vector represent?
What does the bottom number in a vector represent?
Vertical movement (+ up, - down)
What is the magnitude of a vector?
What is the magnitude of a vector?
The length of the vector (distance from tail to head)
Formula for magnitude of a vector
Formula for magnitude of a vector
How to add vectors
How to add vectors
Add top numbers together, add bottom numbers together
What is a resultant vector?
What is a resultant vector?
The result of adding vectors together
How to subtract vectors
How to subtract vectors
Add the negative of the vector being subtracted
How to find the negative of a vector
How to find the negative of a vector
Change the signs of both components
How to multiply a vector by a scalar
How to multiply a vector by a scalar
Multiply both components by the scalar
Effect of positive scalar on vector direction
Effect of positive scalar on vector direction
Direction stays the same
Effect of negative scalar on vector direction
Effect of negative scalar on vector direction
Direction reverses
What is a linear combination of vectors?
What is a linear combination of vectors?
Multiply vectors by scalars, then add/subtract them
What does vector mean?
What does vector mean?
Move 3 units right and 4 units up