Physics General knowledge

1. Rate of change of distance is called as ?
Answer: Speed

2. Rate of change of displacement is called as ?
Answer: Velocity

3. Negative acceleration is called as ?
Answer: Retardation (deceleration)

4. What is the acceleration of a body moving with constant velocity ?
Answer: Zero

5. Which is the weakest force in the universe ?
Answer: Gravitational Force

6. Which is the strongest force in the universe ?
Answer: Nuclear Force

7. What is the CGS unit of force ?
Answer: Dyne

8. Who discovered the law of inertia ?
Answer: Galileo Galilei

9. A body given with an initial velocity moved under the effect of gravity is called ?
Answer: Projectile

10. Rate of change of momentum is _____ ?
Answer: Force

11. A large force acting on a short time is called ?
Answer: Impulse

12. The ability of a liquid to rise by defying gravity is called ?
Answer: Capillarity

13. Which is the liquid that shows Capillary fall ?
Answer: Mercury