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WorksheetsWork Done and Power
Total questions: 18
Worksheet time: 37mins
What is the unit for distance?
Newton (N)
Joule (J)
Watt (W)
Meter (m)
What is the unit for force?
Newton (N)
Joule (J)
Watt (W)
Meter (m)
What is the unit for work (energy)?
Newton (N)
Joule (J)
Watt (W)
Meter (m)
standing
Walking
A force of 10 N moves an object over a distance of 2 metres. Calculate the work done.
10
2
20
100
A force of 100 N moves an object over a distance of 3 metres. Calculate the work done.
300
100
3
200
A force of 5 N moves an object over a distance of 100 metres. Calculate the work done.
5
100
500
200
A force of 3 N moves an object over a distance of 3 metres. Calculate the work done.
3
6
9
12
A force of 30 N moves an object over a distance of 2 metres. Calculate the work done.
60
30
2
90
If you push a trolley with a force of 60 N for 2 m, how much work have you done?
120 J
30 J
120 N
30 N
What is the unit for power?
Newton (N)
Joule (J)
Watt (W)
Meter (m)
What is the unit for time?
Newton (N)
Joule (J)
Watt (W)
Seconds (s)
1 watt =
1 joule per second
2 joules per second
3 joules per second
4 joules per second
Power is ...
the push or pull of an object
when an object is moved
how quickly work is done
How do you calculate work done?
Force x distance
Force ÷ distance
Work done x force
Work done x distance
A blender performs 2000 J of work in 10 seconds. What is its power?
2000 W
200 W
10 W
100 W
How do you calculate power?
Work done ÷ time
Work done x time
Work done - time
Work done + time
A blender performs 4000 J of work in 2 seconds. What is its power?
2000 W
200 W
4000 W
100 W
