Are the following statement True (or) False?
(1) There are two types of motion.
(2) Uniform motion is motion at constant speed.
(3) Average velocity is a vector quantity.
(4) Acceleration is a scalar quantity.
(5) Displacement is the rate of change of velocity.
(6) Acceleration has only magnitude.
(7) If the speed changes, there will be acceleration.
(8) The motion at constant acceleration is the uniform motion.
(9) The SI unit of acceleration is cm s-1.
(10) Motion along a straight line with constant acceleration is linear motion.
(11) When a body is in motion there is a change in position.
(12) The change in position along a certain direction is called distance
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.