Lets Work!
Work done and energy transferred are measured in joules (J). The work done on an object can be calculated if the force and distance moved are known.
The equations you need to remember in order to find out the amount of work done are:
Work Done = Energy Transferred (this is measure in joules)
Work Done = Force x Distance Moved
(In joules) (In N) (in metres)
Example:
A man lifts a parcel, mass 4kg, Answer:
from the floor to a shelf 2m high. 40 N x 2m
How much work is done on it? 80 Joules
Where does this energy come from?
The equations you need to remember in order to find out the amount of work done are:
Work Done = Energy Transferred (this is measure in joules)
Work Done = Force x Distance Moved
(In joules) (In N) (in metres)
Example:
A man lifts a parcel, mass 4kg, Answer:
from the floor to a shelf 2m high. 40 N x 2m
How much work is done on it? 80 Joules
Where does this energy come from?