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WorksheetsMoments
Total questions: 15
Worksheet time: 15mins
The moment of a force causes an object to
move forward
move backward
stop moving
turn about a fixed point
Moment can be calculated using the equation:
M = F × d
M = F / d
M = F2 × d
M = F / d2
The SI unit of moment of force is –
m
N
kgf
Nm
When an object is in equilibrium, which equation is true?
Clockwise moment = anticlockwise moment
Clockwise moment + anticlockwise moment = 0
Clockwise moment / anticlockwise moment = 0
Clockwise moment + anticlockwise moment = resultant force
A nut can be loosen more easily with
A short spanner because a large turning effect can be produced
A short spanner because a larger force can be produced.
A heavy spanner because a larger force can be produced.
long spanner because a large turning effect can be produced.
The figure below shows a man lifting a heavy rock using a steel bar. He pushes downwards on the end of the bar with a force F.
Which pivot positions allows the force F to be as small as possible?
A
B
C
D
A boy of weight 600N sits on the see-saw as shown at a distance of 1.5m from the pivot. What is the force F required at the other end to balance the see-saw?
450 N
350 N
4.5 N
200 N
Which solid block remains at rest under the action of the forces shown?
A
B
C
D
The diagrams show four solid cones. The centre of mass of each cone is marked by a point labelled M.
Which cone is the least stable
A
B
C
D
A plane lamina with centre of mass X touches the ground at point P. Which diagram shows the lamina in equilibrium?
They would cause the bus become unstable
The would cause the bus to slow down
The would increase the kinetic energy of the bus
The would lower the centre of mass of the bus
A
B
C
D
A
B
C
D
