L-9_9th_Sci

2. The _____ of an object is defined as the product of its mass and velocity
4. A _____ can be used to change the magnitude of velocity of an object or to change its direction of motion.
9. The 2 opposing forces acting on 2 different objects are also known as action and _____ forces.
11. The tendency of undisturbed objects to stay at rest or to keep moving with the same velocity is called _____.
13. The _____ force acting on an object brings it in motion.
14. The SI unit of force is _____.

1. If force acting on a body is ____ then it’s momentum would be constant
3. If an external force of 100N is applied in the body which is moving with acceleration of 4 ms^(-2) then the mass of that body would be ___ Kg.
5. There is a ______ offered by an object to change its state of motion. Meaning stationery objects don’t want to move
6. The object moves with a ____ speed when no force acts on them
7. We know that _____ objects offer larger inertia
8. Acceleration always acts in the direction of _____.
10. When an object is pushed with a little force it does not move because of _____ acting in the direction opposite to push.
12. According to Newton’s _____ law of motion every action has an equal and opposite reaction.