Unit Test #51

Select your answers to the following 10 questions from the pop-up menus in the right hand column. Clicking the "Begin Test Again" button will clear all the answers.

 

Q1:

The magnitude of a two-dimensional vector is a measure of its

A. direction
B. length 
C. direction and length 
D. slope

Answer 1:

Q2:

The magnitude of vector a = 

A. 5 
B. 45 
C. 9 
D. √45

Answer 2:

Q3:

If vector b =  then 0.5equals

A. 
B. 
C. 
D. 

Answer 3:

Q4:

The inverse of vector  is

A. 
B. 
C. 
D. 

Answer 4:

Q5:

If a =  and b =  then b =

A. 
B. 
C. 
D. 

Answer 5:

Q6:

Vector  can be written

A. 3i 
B. 3j
C. -3i 
D. -3j

Answer 6:

Q7:

Vector  can be written

A. 2i + j
B. -2i - j
C. -2i + j
D. 2i - j

Answer 7:

Q8:

Position vectors always start at the point:

A. (0, 1)
B. (1, 0) 
C. (0, 0) 
D. (1, 1)

Answer 8:

Q9:

Vector AB is a displacement vector and andare position vectors.

Which of the following is true?

A. AB = a - b 
B. AB = b - a 
C. AB = a + b 
D. AB = b + a

Answer 9:

Q10:

If b =  then -2can be written

A. 
B. 
C. 
D. 

Answer 10: