Chapter 5 Vectors - Test 1

1. Time, volume, speed and mass are scalar quantities.

1) False
2) True
2. Vectors are those quantities which can be described completely by a number and a unit.

1) False
2) True
3. In books, vectors are usually written in small letters.

1) False
2) True
4. In the same question, the same scale is taken for similar quantities to be represented.

1) False
2) True
5. With the help of frame of reference, the representative line of the vector is drawn in its particular direction

1) False
2) True
6. If we have to subtract vector B from the vector A we can write it arithmetically as A-B = A+(-B)

1) True
2) False
7. If a vector A is multiplied by 2, then the new vector will have same magnitude as that of A.

1) False
2) True
8. If the displacement of a body is 2cm and it is multiplied by 2 then the magnitude of the resultant will be 4 cm

1) False
2) True
9. Base/hypotenuse = sine ?
1) False
2) True
10. The numerical values of trigonometrical ratios depends upon the magnitudes of the angles.

1) False
2) True
11. Sine 600 = 0.866

1) True
2) False
12. A vector is represented by a straight line of a specific length having an arrow head.

1) True
2) False
13. If two rectangular components are given then we can find the direction of the resultant vector by tan ? = F x /Fy

1) False
2) True
14. The momentum is a scalar quantity.

1) True
2) False
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