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## Work and Energy  Physical work (W) occurs, if through the influence of a force (F), a body is moved a certain distance (s). Energy is stored force (using the same unit). It can neither be created nor destroyed, only transformed. One form of energy is, e.g., heat.

## Ws = F

 Check your calculation!     You need help?Please enter numbers only in two of the three fields! F Force (expended) N s Distance (covered) m W Work (physical) J

## Wt = P

 Check your calculation!     You need help?Please enter numbers only in two of the three fields! P Power W (Nm/s) t Time s W Work J (Nm)

## Example

### Var. set:

F = 530 N; s = 12 m

W in J 