Unit Test #52

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 three-dimensional vector is a measure of its

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

Answer 1:

Q2:

The magnitude of vector c = 

A.12
B. 50 
C. √50
D. √12

Answer 2:

Q3:

If vector e =  then 3e =

A. 
B. 
C. 
D. 

Answer 3:

Q4:

The vector e =  can be written as

A. 2j 
B. -2j 
C. 2k
D. -2k

Answer 4:

Q5:

If two vectors are skew then they:

A. meet at right angles 
B. are orthagonal 
C. never meet 
D. are concurrent

Answer 5:

Q6:

If c =  then -equals

A. 
B. 
C. 
D. 

Answer 6:

Q7:

If g =  and e =  are displacement vectors then e + g =

A. 
B. 
C. 
D. 

Answer 7:

Q8:

If  then -can be written:

A. 3- 4j + 5k 
B. -3+ 4j - 5k
C. -3- 4j + 5k
D. 3+ 4j - 5k

Answer 8:

Q9:

Vector PQ is a displacement vector and p andare position vectors.

Which of the following is true?

A. PQ = p + q 
B. PQ = p - q 
C. PQ = q + p 
D. PQ = q - p

Answer 9:

Q10:

If g =  and e =  are position vectors then vector EG =

A. 
B. 
C. 
D. 

Answer 10: