Explain the law of addition of vectors.

Explain the law of conservation of charge with an example.

Assertion: The difference of two vectors A and B can be treated as the sum of two vectors. Subtraction of vectors can be defined in terms of addition of vectors.

By giving an example, state and explain the law of conservation of energy.

Explain the laws of kinetic friction.

State and explain the law of inertia (or Newton's first law of motion).

Which one of the following best explains the law of conservation of mass ?

State the essential condition for the addition of vectors.

What is the law of limiting factors? Explain with the help of an example.