Energy and Work Done

Question 1

Define energy

Answer 1

Energy is the ability to DO WORK

Question 2

S.I. Unit for energy ?

Answer 2

Joule (J)

Question 3

Conditions to be met in order for work to be done?

Answer 3

1. A force acts on the object

2. The object moves in the same direction as the force

Question 4

Formula for Work Done?

Answer 4

Work Done (J) = Force (N) × Distance (m)

Question 5

Criteria to explain work done?

Answer 5

1. Force doing the work
2. Force & Object are in the SAME direction
3. Actual dircetion - upwards / downwards / towards ___

Question 6

What does the Principle of Conversation of Energy state?

Answer 6

Energy cannot be CREATED nor DESTROYED, but energy can be CONVERTED from one form to another