WorksheetsWork Power Machines
Total questions: 10
Worksheet time: 11mins
if you push a cart with a force of 60 N for 2 m... how much work have you done
120 J
30 J
120 N
30 N
A machine with a 5-N input force and a 25-N output force has a mechanical advantage of?
2
5
20
125
The mechanical advantage of a pulley system depends upon?
The diameter of the pulley wheels
The length of the rope
The number of sections of rope
The direction of the input force
Which is not considered a simple machine?
The pump
The wheel & axle
The wedge
The screw
The pulley
If the MA is 6 and the efficiency of the simple machine is 75% then what is the IMA?
6
9
8
4
A boy is pulling a box with a force of 80 N at an angle of 25º with the horizontal, what is the work-done id the displacement is 50 m?
3500 J
3625.23 J
3923.23 J
3122.78 J
A boy of mass 30 kg is running at a speed of 5 m/s. What is his Kinetic Energy?
400 J
425 J
350 J
375 J
The displacement of effort force de is 6 m and the displacement of resistance force dr is 2.5 m. What is the IMA?
2.4
3.6
1.2
5.0
Calculate the power, if the work done is 50 J and the time required to the work is 12.5 Sec
6 W
5 W
4 W
3 W
