Physics Practice: Laws of Motion (Mock Test 5 - Ultimate Mastery)
1. The inertia of an object tends to cause the object to ________.
2. Rocket propulsion is based on the principle of conservation of ________.
3. If a body is moving with a constant velocity, the net force acting on it is:
4. The relationship between Newton (N) and Dyne is $1\text{ N} = 10^x\text{ dynes}$. The value of $x$ is:
5. When a person jumps out of a moving train, he falls forward because of:
6. A force of $1\text{ kgf}$ is equal to ________.
7. The linear momentum of a body of mass $m$ moving with velocity $v$ is:
8. Friction is a self-adjusting force in the case of ________ friction.
9. $G$ is called the Universal Gravitational Constant because ________.
10. According to Newton's third law, the action and reaction forces act on ________ bodies simultaneously.
11. A body of mass $2\text{ kg}$ is acted upon by a force of $10\text{ N}$. Its acceleration is ________.
12. The force which acts for a very short time and produces a large change in momentum is called ________.
13. S.I. unit of $G$ (Universal Gravitational Constant) is ________.
14. When we kick a stone, we get hurt due to ________.
15. The mass of an object is $5\text{ kg}$. Its weight on Earth will be approx ________.
16. Non-contact forces ________ with the increase in distance between the bodies.
17. A ball of mass $0.5\text{ kg}$ moving at $10\text{ m/s}$ is stopped in $0.1\text{ s}$. The force applied is:
18. Inertia of a body is directly proportional to its ________.
19. If the distance between two masses is reduced to half, the gravitational force becomes ________ times.
20. The force of friction is least in the case of ________ friction.