- One newton is equal to ……. dyne.
(12) There are ……….. fundamental forces.
(13) The gravitational force is a ……… range force .
(14) Weight has both magnitude and ………. .
(15) The SI unit of weight is ……… .
(16) Mass is a scalar quantity and its SI unit is ……… .
(17) The gravitational force interact between ………. .
(18) The weight of 50 kg mass is ……….. .
(19) The nuclear force is a ……. range force.
(20) The ratio of mass to volume is defined as ……… .
. 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.
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