Vectors Flashcards

0
Q

The arrow joining the start and end point on a graph represents the

A

Journey made

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1
Q

(3)
(2)

(-2)
(-1)

A

(3) - how far right on x axis
(2) - how far up on y axis

(-2) - how far left on x axis
(-1) - how far down on y axis

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2
Q

A vector represents shows the point of exactly how the journey was made from

A

Start to finish ie 2 down 1 right :
(1)
(-2)

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3
Q

How to add vectors

A

Add the x numbers and y numbers

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4
Q

The symbols for a vector when written are …but in textbooks and exams they are written in …

A

Underlined

Bold

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5
Q

Always add the arrows on the lines made from the journey representing the direction

A

Like –>–

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6
Q

When multiplying the number outside multiplies with

A

Both numbers in the vector

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7
Q

-(3)
(4)
Is the same as:

A

(-3)

-4

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8
Q

The magnitude of a triangle is

A

The vector (hypotenuse)

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9
Q

Use pythag theorem from the vector
(3)
(5)

A

(Sqr) 34 or if can simplify further use surds

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10
Q

Symbol for magnitude of a vector

A

|c|

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