CIE iGCSE Co-Ordinated Science P1.5.2 Turning effect of forces Exam Style Questions Paper 2
Question
A see-saw (teeter-totter) rests on a pivot at its centre.
A child of weight 250 N sits on one side of the see-saw at a distance of 1.6 m from the pivot.
A second child balances the see-saw by sitting on the other side of the pivot at a distance of 1.2 m from the pivot.
What is the weight of the second child?
(A) 190 N
(B) 250 N
(C) 330 N
(D) 400 N
▶️Answer/Explanation
Ans: C
Question
Which statement describes a system that is in equilibrium?
(A) There is a resultant force and there is a resultant turning effect on the system.
(B) There is a resultant force but there is no resultant turning effect on the system.
(C) There is no resultant force but there is a resultant turning effect on the system.
(D) There is no resultant force and there is no resultant turning effect on the system.
▶️Answer/Explanation
Ans : D
Question
What is meant by the moment of a force?
(A) the speed of an object moved by a force
(B) the time taken for a force to move an object
(C) the turning effect of a force
(D) the work done by a force
▶️Answer/Explanation
Ans: C
Question
A uniform metre rule rests on a pivot at the 50 cm mark. A load L is placed at the 30 cm mark and
a load of 6.0N is placed at the 80 cm mark. The arrangement is balanced.
What is the weight of load L?
(A) 6.0 N
(B) 9.0 N
(C) 16 N
(D) 24 N
▶️Answer/Explanation
Ans: B