12509221
Description
Quiz by Vanessa Komperda, updated more than 1 year ago
|
Created by Vanessa Komperda
almost 7 years ago
|
|
Question 1
Question
Is 5 m/s a vector.
Answer
- True
- False
Question 2
Question
What is the addition of the vectors V = (-2 ,5) and W = (7 , 9).
Answer
-
VW = (5, 14)
-
VW = ( 9 ,14)
-
VW = ( 5, 4)
-
VW = (9 ,5)
Question 3
Question
What happens when we multiply vector U = ( -3, 4) by scalar 5?
Answer
-
U = ( 5, ,5)
-
U = (-3,4)
-
U = ( -15, 20)
-
U = ( 15, 20)
Question 4
Question
What is the subtraction of vectors U = (-7, -3) and W = ( 5, -2)?
Answer
-
UW = ( -2, -5)
-
UW = ( 12, 1)
-
UW = (2, 5)
-
UW = (-12, -1)
Question 5
Question
What is the magnitude of the vector ( -1, -6)?
Answer
-
sqrt (36 ) = 6.
-
sqrt (37 )
-
sqrt ( -7)
-
sqrt ( 7)
Question 6
Question
If a = (-1, 2) and b = (-2,-3), and if c = -a + 3b, what is vector c?
Answer
-
c = (-3, 1)
-
c = ( 3, 1)
-
c = ( -1, 5)
-
c = (-5, 11)
Question 7
Question
If v ⃗ = (-2, 5), what is the magnitude and direction of v? Hint: For part 2, remember which quadrant the vector lies in.
Answer
-
Magnitude is √29 , and direction is 261.8°
-
Magnitude is √7 , and direction is 61.8°
-
Magnitude is √3 , and direction is 21.3°
-
Magnitude is √27 , and direction is 61.8°
Question 8
Question
Is -2 inches a vector?
Answer
- True
- False
Question 9
Question
When two vectors are perpendicular (right angles) to each other the dot product is zero?
Answer
- True
- False
Question 10
Question
Find the dot product of vectors v and w. Use the following diagram to answer the question. Round your answer to the nearest hundredth.
Answer
-
25.384°
-
20.433°
-
28.432°
-
22.273°
Want to create your own Quizzes for free with GoConqr? Learn more.