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Course: OCR A Level Physics A H556
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Curriculum

OCR A Level Physics A H556

1. Development of Practical Skills in Physics

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2. Foundations in Physics

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3. Forces and Motion

0/108 Dr Dabour Hub Science Diagram and Course Material

4. Electrons, Waves and Photons

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OCR H556 chapter questions and answers

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Quiz

4.2.3 Centre of Mass – Check yourself

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  • Questions count: 6
  • Passing grade: B+
  • Time limit: 10 minutes
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1.
The centre of mass of a uniform rod 1.2 m long is at
0.30 m from one end
1.2 m from one end
0.40 m from one end
0.60 m from one end
2.
Which makes an object more stable?
Higher centre of mass
Lower centre of mass
Narrower base
Heavier top
3.
Masses of 1.0 kg at x = 0 and 3.0 kg at x = 2.0 m have a centre of mass at
0.50 m
1.0 m
1.5 m
2.0 m
4.
When an irregular lamina hangs freely from a pin, its centre of gravity
is directly below the pin
is at the pin
is at the lamina's edge
is anywhere
5.
A block of width 0.20 m and height 0.60 m, uniform, begins to topple at tilt angle
45°
71.6°
33.7°
18.4°
6.
A body topples when
its weight is too large
the vertical line through its centre of mass falls outside its base
its centre of mass moves above the lowest point
its base is flat
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Part of 3. Forces and Motion — see every lesson and quiz in this unit.
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