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MODUL WAJA
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Learning Objective: 1.4 Application of work
Learning Outcomes: Explain with examples how work is done. State the unit of work. Calculate the work done.
1. Tick (⁄) in the correct boxes below to show work is done.
2. Underline the correct S.I unit of work.
3. The diagram below shows a worker pulling a box with a weight of 300N over a distance of 3 m.
Using the formula above, the work done is:= 300N x 3m= 900Nm = 900Joule
A worker pushes a box with a weight of 250N over a distance of 2m. Calculate the work done using the same example given above
Work done = Force x Distance
=
=
300N3 m
Work done = Force x Distance
Newton Watt Joule
2m250N
Newton Watt Joule
2m250N
Learning Objective: 1.4 Application of work
Answer Scheme
1. Tick (⁄) in the correct boxes below to show work is done.
2. Underline the correct S.I unit of work.
3. The diagram below shows a worker pulling a box with a weight of 300N over a distance of 3 m.
Using the formula above, the work done is:= 300N x 3m= 900Nm = 900Joule
A worker pushes a box with a weight of 250N over a distance of 2m. Calculate the work done using the same example given above
Work done = Force x Distance= 250N x 2m= 500Nm = 500Joule
300N3 m
Work done = Force x Distance
