Worksheets7.4 Cross product
Total questions: 10
Worksheet time: 7mins
If u ⋅v = 0 , then u = 0 and v = 0 .
True
False
Calculate the cross product of <1, -2, 1> and <2, -1,1>
5
3
< -1, -1, 3>
< -1, 1, 3>
Given parallel vectors u and v. Answer ALL that apply
their scalar product is zero
their scalar product is either 1 or -1
u is a scalar multiple of v
magnitude of u equals the magnitude of v
their cross product is 0
Which vector operation is commutative?
Dot Product
Vector Projection
Scalar Projection
Cross Product
-23i+7j-k
23i+7j-k
-2i+j-7k
-3i+7j-k
What is the answer when you take dot product between two vectors?
a vector
a scalar
a vector and scalar
nothing
The y value of the vector product is ________.
-4
4
8
-8
Given points A(3, 2, -4) and B(2, 1, -1), so the vector AB is
i + 3j -5k
-i -3j +3k
i -j -5k
-i -j +3k
What is the area of the parallelogram spanned by the vectors a=<3,−3,1> and b=<4,9,2>?
56
570
562
454
