Conservation Laws

Question 0

Conservation of Energy

Answer 0

The energy of an isolated system cannot be increased not decreased; it can only be changed from one form to another.

Question 1

Conservation of Linear Momentum

Answer 1

Provided that no external forces act on a system, the total linear momentum of the system remains constant.

Question 2

Conservation of Angular Momentum

Answer 2

If no external torques act on a system then the total angular momentum of the system about that remains constant.