The new vectors obtained from sub-dividing a vector is called ……… .
Q ⃗ and - Q ⃗ are in ……… directions.
Time is not a ……… quantity.
Displacement is not a ……… quantity.
The maximum value of the resultant of two vectors acting at a point occurs when they are in
………. directions.
If the sum of the vectors is zero, the two vectors have same magnitude and ………
directions.
11.Quantities that have only ………. are called scalars.
A ……… has both magnitude and direction.
The change in position along a certain direction is called ……… .
Force is a ……… quantity.
Mass is a …….. quantity.
The combined effect of two (or) more vectors is called …….. .
The vector sum of two vectors is called ……… vector.
18.The process of sub-dividing into two or more vectors is called ……… .
A vector can be represented by an ………. .
Vectors of ………. kinds may not be added.
Only vector quantities of ………. kind may be added.
If D ⃗ =-4C ⃗, the magnitude of D ⃗ is ………. than that of C ⃗.
If A ⃗, B ⃗ and C ⃗ satisfy the equation A ⃗+B ⃗-C ⃗=0, then C ⃗ is ……… vector of A ⃗and B ⃗.
The magnitude of the resultant force of a 12 N pointing east and a force of 5 N pointing
south is ……….. N.
A vector of magnitude 100 units is inclined at angle 45° to the X-axis. The magnitude of
X-component is ……… .
Key>>>
1.vector 2. force 3. zero 4.force 5. vector component 6.opposite
7.cector 8. scalar 9. same 10. opposite 11. magnitudes 12. vector
displacement 14.vector 15. scalar 16. resultant 17. resultant 18. resolution of a vector 19. arrow 20. different 21. same
greater 23. resultant 24. 13N 25. 70.71 units
True\False
1.A physical quantity which has direction as well as magnitude is known as vector,
Displacement has both magnitude and direction.
The sum of three vectors, having unequal magnitude, can be equal to zero.
4.If P ⃗ + Q ⃗=0, P ⃗and Q ⃗ have the same magnitude.
Vector R ⃗ and –R ⃗ have the same directions.
6.All basic quantities are scalar.
A vector quantity has no direction.
A weight vector and a displacement vector can be added.
The magnitude of the resultant of the force 6 N east and a force of 8 N north is 14 N.
When a boy is in motion , there is a change in position.
A quantity that has inly magnitude and is called ………… .
A scalar is the magnitude of a vector .
A vector can be expressed by an arrow.
The sum of two (or) more vectors is called vector component.
If X ⃗ = -Y ⃗, then X ⃗ and Y ⃗ have the same magnitudes.
Distance is a scalar quantity.
The sum of two vd force F ⃗ may not be product.
The new vectors obtain from sub-dividing a vector is called vectors components.
Vector subtraction is, in fact vector addition.
For given diagram,
O ⃗+ P ⃗+ Q ⃗+ R ⃗ = 0
…………………………………………………………………………………………………….
Key>>>>>
1.TRUE 2. TRUE 3. TRUE 4. TRUE 5. FALSE 6. TRUE 7. FALSE 8. FALSE 9. FALSE 10. TRUE 11. FALSE 12. TRUE
