Vectors and Vector Addition

Question 1

1. Which of the following statement is true in determining the resultant of two or more vectors acting together in the same direction?
   a. Add the given vectors and take the common direction
   b. Subtract the given vectors and take the common direction
   c. Get the product of the given vectors and take the two direction
   d. Add the given vectors and take the two direction

Answer 1

a. Add the given vectors and take the common direction

Question 2

2. All statement are true about vectors, except;
   a. Vectors are quantities with specified magnitude and direction
   b. Vectors are quantities that have magnitude only
   c. Vectors of two or more can be add by component method
   d. Vectors can be add and take the common direction

Answer 2

b. Vectors are quantities that have magnitude only

Question 3

3. A quantity that can be completely described by a single value called magnitude.
   a. Vector b. magnitude c. scalar d. velocity

Answer 3

c. scalar

Question 4

4. The following statement is an example of scalar, except;
   a. An ant crawl on top of the table 15 cm.
   b. The troop of soldier walking 20km to northward direction
   c. A bunch of flowers weighing 5 kilograms
   d. A car runs fast 50km/h

Answer 4

b. The troop of soldier walking 20km to northward direction

Question 5

5. A quantity that have magnitude and direction.
   a. Vector b. scalar c. displacement d. velocity

Answer 5

a. Vector

Question 6

6. What is the vector some of 3 unit east and 5 unit east?
   a. 5 units east b. 6 units east c. 7 units east d. 8 units east

Answer 6

d. 8 units east

Question 7

7. To find the resultant of two vectors with opposite direction, you need to;
   a. Get the difference and take the direction of the vector with the greater value
   b. Get the sum and take the direction of the vector with the greater value.
   c. Get the product and take the direction of the vector with the greater value
   d. Get the product and take the direction of the vector with the smaller value

Answer 7

a. Get the difference and take the direction of the vector with the greater value

Question 8

8. Methods which are used to determine the vector sum or resultant of two or more vectors, except;
   a. Parallelogram b. polygon c. component d. symmetrical

Answer 8

d. symmetrical

Question 9

9. Which of the following is true about graphical method in calculating resultant vector?
   a. The vectors to be added are drawn according to a convenient scale
   b. The vectors to be subtracted are drawn according to a convenient scale
   c. The product of vectors are drawn according to a convenient scale
   d. The vectors to be subtracted are directly drawn.

Answer 9

a. The vectors to be added are drawn according to a convenient scale

Question 10

10. Since vectors are quantities with specified magnitudes and direction, the most appropriate representation of the vector is;
    a. Arrow b. line c. curve d. angle theta

Answer 10

a. Arrow

Question 11

11. The formula used in obtaining the magnitude of the resultant in component method.
    a. Pythagorean theorem
    b. Polygon method
    c. arc tangent
    d. Trigonometric

Answer 11

a. Pythagorean theorem

Question 12

12. Which of the following is an example of vector quantity?
    a. 25km/h b. jumping 20 seconds c. 50 grams d. 5cm, east

Answer 12

d. 5cm, east

Question 13

13. What is the difference of the two vectors 8 units, east and 5 units, west?
    a. 3 units, west
    b. 3 units, east
    c. 4units west
    d. 4units, east

Answer 13

b. 3 units, east

Question 14

14. What is the exact sum of vectors A(arrow sa taas)= 10cm, east and B(arrow sa taas)= 5cm, east?
    a. 5 cm, east
    b. 5 cm, west
    c. 15cm, east
    d.15cm, west

Answer 14

c. 15cm, east

Question 15

15. The net displacement obtained from two or more vectors.
    a. Scalar b. resultant c. sum d. force

Answer 15

b. resultant