SOME FACTS IN PHYSICS

1. Weight decreases as you move away from earth by distance squared.

2. Mass and Inertia are the same!

3. Mass is not Weight!

4. An unbalanced force must produce acceleration 

5. The sum of Potential Energy and Kinetic Energy is the Mechanical Energy 

6. Kinetic Energy changes only if velocity changes

7. Mechanical Energy will not change in the case of a free falling object  

8. An ampere is current while a coloumb is charge 

9. All resistors in series have equal current

10.Resistors connected in parallel have equal voltage

11.There are no free electrons in an insulator 

12.The charge on a single electron is determined by Millikan by his famous oil drop experiment 

13.Outside the magnet, the magnetic point is North to South and it is opposite inside the magnet 

14.Sound waves are longitudinal and Mechanical 

15.The factor that determines the energy of a wave is its amplitude 

16.Monochromatic light has  one frequency 

17.Inverted images are always Real