Pure Year 1 Unit 11 Flashcards
1
Q
A vector has both magnitude and direction? T or F
A
T
2
Q
If PQ–> = RS–> then
A
the line segments PQ and RS are equal in length and are parallel
3
Q
If AB–> = -BA–> then
A
AB is equal in length, parallel and in the opposite direction to BA
4
Q
AB–> + BC–> =
A
AC–>
5
Q
Draw lamda
A
IDK google it or something
6
Q
What is lamda?
A
A non zero scalar
7
Q
What is a unit vector? How are they usually denoted?
A
A vector of length 1, usually denoted by i and j, for x and y respectively
8
Q
How would you find the magnitude of:
a = xi + yj
A
[a] = sqrt(x^2 + y^2)
9
Q
What are position vectors?
A
vectors giving the position of a point, relative to a fixed origin
