The diagram shows a children’s wooden play tower. Which change to the tower makes it more stable?

5054_s21_qp_12

MCQ

2021

Paper 1, Variant 2

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The centre of mass of a solid rectangular block is at its centre. A small heavy weight is available. face X face Y In which arrangement is the centre of mass the lowest?

5054_s22_qp_12

MCQ

2022

Paper 1, Variant 2

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Four objects have identical shapes but different distributions of mass. The centre of gravity of each object is shown...

5054_s24_qp_11

MCQ

2024

Paper 1, Variant 1

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A crane has a 5800 N counterweight positioned 2.3 m from the tower along a horizontal jib. The centre of gravity P of the crane jib is marked. jib 5800 N 2300 N 2.3 m counterweight P What is the horizontal distance between the 2300 N load and P so that there is no moment about P?

5054_s24_qp_12

MCQ

2024

Paper 1, Variant 2

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A tractor is being used on rough ground. What is the safest position for its centre of mass?

5054_w05_qp_1

MCQ

2005

Paper 1, Variant 0

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A piece of uniform card is suspended freely from a horizontal pin. At which of the points shown...

5054_w08_qp_1

MCQ

2008

Paper 1, Variant 0

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The stability of a bus is tested by tilting it on a ramp. The diagram shows a bus that is just about to topple over. Where is the centre of mass of the bus?

5054_w09_qp_1

MCQ

2009

Paper 1, Variant 0

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A student balances a non-uniform object on a pivot. To do this, a weight is suspended near the left-hand end of the object. Where is the centre of mass of the object?

5054_w12_qp_11

MCQ

2012

Paper 1, Variant 1

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A piece of uniform card is suspended freely from a horizontal pin. Which point is its centre of mass?

5054_w13_qp_11

MCQ

2013

Paper 1, Variant 1

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A piece of uniform card is suspended freely from a horizontal pin. Which point is its centre of mass?

5054_w13_qp_12

MCQ

2013

Paper 1, Variant 2

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