Edexcel International A Level Physics

Topic Questions

International A LevelPhysicsEdexcelTopic Questions1. Mechanics & MaterialsMoments

Moments

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1
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A beam is balanced on two supports as shown.

q9-wph11-01-jan-2022-edexcel-int-as-a-level-phy

The beam has a weight W and the reaction forces at the two supports are P and Q.

Which of the following statements about the magnitudes of the forces is correct?

  • P > Q

  • Q > W

  • Q > P

  • (P + Q) > W

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2
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A beam is supported by a pivot as shown in the diagrams. The centre of gravity of the beam is at G. The beam is acted on by a force F.

Which diagram shows an arrangement where the beam could not be in equilibrium?

q5-wph11-01-oct-2021-edexcel-int-as-and-a-level-phy

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