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Turning Effects of Forces
Question Paper
Level O Level
Subject Physics
Exam Board Cambridge International Examinations
Unit Newtonian Mechanics
Topic Turning Effect of Forces
Booklet Question Paper
Time Allowed: 49 minutes
Score: /41
Percentage: /100
Grade Boundaries:
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1 A uniform horizontal beam, pivoted at its right-hand end, is in equilibrium. A force of 60 N acts
vertically upwards on the beam as shown.
60 N
20 cm 30 cm
pivot
weight
of beam
What is the weight of the beam?
A 36 N B 40 N C 90 N D 100 N
2 Four table lamps are shown along with the position M of the centre of mass in each case.
Which lamp is the most stable?
A B C D
M M
M
M
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3 A uniform plank is pivoted at its mid-point. Two weights are added to the plank, one weight on
each side of the pivot in the positions shown.
2.0 m 2.0 m 2.0 m
X
12 N 8.0 N
A vertical force is applied at point X to balance the plank.
What is the size and direction of this force?
size / N direction
A 2.0
.0 downwards
B 2.0
.0 upwards
C 4.0
.0 downwards
D 4.0
.0 upwards
4 A uniform beam is pivoted at its centre. Two weights are placed on the beam in the positions
shown and the beam is balanced by an upward force F.
F
40 cm 30 cm 20 cm
30 N pivot 60 N
What is the size of F?
A 6N B 12 N C 30 N D 60 N
For more awesome GCSE and A level resources, visit us at www.savemyexams.co.uk/
Turning Effects of Forces
Question Paper
Level O Level
Subject Physics
Exam Board Cambridge International Examinations
Unit Newtonian Mechanics
Topic Turning Effect of Forces
Booklet Question Paper
Time Allowed: 49 minutes
Score: /41
Percentage: /100
Grade Boundaries:
,Save My Exams! – The Home of Revision
For more awesome GCSE and A level resources, visit us at www.savemyexams.co.uk/
1 A uniform horizontal beam, pivoted at its right-hand end, is in equilibrium. A force of 60 N acts
vertically upwards on the beam as shown.
60 N
20 cm 30 cm
pivot
weight
of beam
What is the weight of the beam?
A 36 N B 40 N C 90 N D 100 N
2 Four table lamps are shown along with the position M of the centre of mass in each case.
Which lamp is the most stable?
A B C D
M M
M
M
, Save My Exams! – The Home of Revision
For more awesome GCSE and A level resources, visit us at www.savemyexams.co.uk/
3 A uniform plank is pivoted at its mid-point. Two weights are added to the plank, one weight on
each side of the pivot in the positions shown.
2.0 m 2.0 m 2.0 m
X
12 N 8.0 N
A vertical force is applied at point X to balance the plank.
What is the size and direction of this force?
size / N direction
A 2.0
.0 downwards
B 2.0
.0 upwards
C 4.0
.0 downwards
D 4.0
.0 upwards
4 A uniform beam is pivoted at its centre. Two weights are placed on the beam in the positions
shown and the beam is balanced by an upward force F.
F
40 cm 30 cm 20 cm
30 N pivot 60 N
What is the size of F?
A 6N B 12 N C 30 N D 60 N
